UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): November 29, 2018

DIAMONDBACK ENERGY, INC.

(Exact Name of Registrant as Specified in Charter)

(432) 221-7400

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Introductory Note

On November 29, 2018, Sidewinder Merger Sub Inc., an Alabama corporation (“Merger Sub), which is a wholly owned subsidiary of Diamondback Energy, Inc. (“Diamondback”), completed its previously announced merger with Energen Corporation, an Alabama corporation (“Energen”), pursuant to the Agreement and Plan of Merger, dated as of August 14, 2018 (the “Merger Agreement”), by and among Diamondback, Merger Sub and Energen. Pursuant to the Merger Agreement, Merger Sub merged with and into Energen (the “Merger”), with Energen continuing as the surviving corporation and as a wholly owned subsidiary of Diamondback. The events described in this Current Report on Form 8-K took place in connection with the completion of the Merger.

Item 1.01. Entry into a Material Definitive Agreement.

Amended Revolving Credit Facility

On November 29, 2018, Diamondback, as parent guarantor, Diamondback O&G LLC, as borrower (the “Borrower”), and certain other subsidiaries of Diamondback, as guarantors, entered into a ninth amendment (the “Ninth Amendment”) to the Second Amended and Restated Credit Agreement, dated as of November 1, 2013, with Wells Fargo Bank, National Association, as administrative agent, and the lenders party thereto (as amended, supplemented or otherwise modified to the date thereof, the “Amended Revolving Credit Facility”).

The Ninth Amendment permitted Diamondback to consummate the Merger and generally provided additional flexibility for Diamondback. Specifically, among other things, the Ninth Amendment (1) granted additional flexibility to Diamondback to consummate acquisitions of entities that are engaged in similar and related lines of business (including Energen), (2) increased the letter of credit commitment from $100 million to $150 million for letters of credit issued in connection with certain types of midstream assets and associated activities and from $15 million to $30 million for all other letters of credit, and (3) revised the calculation of the total debt to EBITDAX financial covenant (A) to remove the $50 million cap on netting of unrestricted cash in the calculation of total debt when funds are drawn under the credit facility, (B) to increase the amount of expenses incurred in connection with acquisitions and certain other transactions that may be added back in the definition of EBITDAX from $10 million to $50 million per calendar year, and (C) to give effect to the Merger and the previously reported transaction with Ajax Resources, LLC as if each was consummated on October 1, 2018. Additionally, the Ninth Amendment reaffirmed the borrowing base at $2.65 billion, and the aggregate elected commitment amount remained at $2.0 billion.

Immediately after the effective time of the Merger, Diamondback had approximately $1.4 billion in borrowings outstanding under the Amended Revolving Credit Facility, of which approximately $560.3 million was used by Diamondback to repay in full all borrowings under Energen’s credit facility outstanding immediately prior to the effective time of the Merger.

The preceding summary of the Ninth Amendment is qualified in its entirety by reference to the full text of such amendment, a copy of which is attached as Exhibit 10.1 to this Current Report on Form 8-K and incorporated herein by reference.

Energen Notes

At the effective time of the Merger, Energen (as a wholly owned subsidiary of Diamondback) remained the issuer of an aggregate principal amount of $530 million in notes issued under an indenture dated September 1, 1996 with The Bank of New York as Trustee (the “Energen Indenture”). The notes (the “Energen Notes”) consist of: (1) $400 million aggregate principal amount of 4.625% senior notes due on September 1, 2021, (2) $100 million of 7-1/8% notes due on February 15, 2028, (3) $20 million of 7.32% notes due on July 28, 2022, and (4) $10 million of 7.35% notes due on July 28, 2027.

The Energen Notes are the senior unsecured obligations of Energen, and post-Merger, Energen (as a wholly owned subsidiary of Diamondback) will continue to be the sole issuer and obligor under the Energen Notes. The Energen Notes will not be obligations of Diamondback or any of its other subsidiaries. The Energen Notes will rank equally in right of payment with all other senior unsecured indebtedness of Energen, including any unsecured guaranties by Energen of indebtedness of Diamondback, and will be effectively subordinated to Energen’s senior secured indebtedness, including Energen’s secured guaranty of all borrowings and other obligations under the Amended Revolving Credit Facility to the extent of the value of the collateral securing such indebtedness.

The Energen Indenture contains investment-grade style covenants, and does not include a restriction on the payment of dividends. Immediately prior to the effective time of the Merger, Energen was in compliance with the covenants in the Energen Indenture.

With respect to the outstanding Energen Notes, Diamondback may take no action, or Diamondback may seek to amend the terms of the Energen Indenture or engage in liability management transactions with respect to, repay or refinance any or all of the Energen Notes, with any repayment coming from cash on hand or borrowings, including under the Amended Revolving Credit Facility.

On November 29, 2018, Energen guaranteed Diamondback’s Indebtedness (as defined in the Amended Revolving Credit Facility) and granted a lien on certain of its assets to secure such Indebtedness. As a result of such guarantee, the terms of the indentures governing Diamondback’s 4.750% Senior Notes due 2024 (the “2024 Notes”) and 5.375% Senior Notes due 2025 (the “2025 Notes”) obligate Diamondback to cause Energen to also guarantee the 2024 Notes and the 2025 Notes. Diamondback expects to cause Energen to also guarantee the 2024 Notes and the 2025 Notes within the time periods permitted in the indentures governing the 2024 Notes and the 2025 Notes.

Item 2.01. Completion of Acquisition or Disposition of Assets.

As discussed in the Introductory Note above, on November 29, 2018, Diamondback completed its previously announced Merger with Energen. At the effective time of the Merger, each eligible share of common stock, par value $0.01 per share, of Energen (“Energen Common Stock”), issued and outstanding immediately prior to the effective time of the Merger, was converted into the right to receive 0.6442 of a share of common stock, par value $0.01 per share, of Diamondback (“Diamondback Common Stock”), plus cash in lieu of any fractional shares that otherwise would have been issued (the “Merger Consideration”).

At the effective time of the Merger, (1) each outstanding stock option of Energen was converted into a stock option of equivalent value relating to shares of Diamondback Common Stock on the terms set forth in the Merger Agreement, (2) each stock appreciation right in respect of Energen Common Stock was converted into a stock appreciation right of equivalent value relating to shares of Diamondback Common Stock on the terms set forth in the Merger Agreement, (3) each outstanding performance share award of Energen with a performance period that is scheduled to terminate on December 31, 2018 became fully vested and was converted into the Merger Consideration with respect to each share subject to such award and (4) each outstanding time-vesting restricted stock unit award of Energen and (other than as provided in clause (3)) each performance share award of Energen was converted into a time-vesting Diamondback restricted stock unit award of equivalent value on the terms set forth in the Merger Agreement. Performance goals applicable to Energen performance share awards were deemed satisfied at the greater of target and actual performance as of the date of the Merger, as determined in accordance with the Merger Agreement.

The foregoing description of the Merger Agreement and the transactions contemplated thereby is qualified in its entirety by reference to the full text of the Merger Agreement, which is attached as Exhibit 2.1 to Diamondback’s Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on August 15, 2018 and is incorporated by reference herein.

The issuance of Diamondback Common Stock in connection with the Merger was registered under the Securities Act of 1933, as amended, pursuant to the Company’s registration statement on Form S-4 (File No. 333- 227328), as amended, declared effective by the SEC on October 24, 2018. The joint proxy statement/prospectus included in the registration statement contains additional information about the Merger.

Item 2.03. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth in Item 1.01 above is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(a) Financial Statements

The audited consolidated financial statements of Energen Corporation, comprised of the balance sheets as of December 31, 2017 and 2016, the related statements of operations for the years ended December 31, 2017, 2016 and 2015, the related statements of comprehensive income for the years ended December 31, 2017, 2016 and 2015, the related statements of shareholders’ equity for the years ended December 31, 2017, 2016 and 2015, the related statements of cash flows for the years ended December 31, 2017, 2016 and 2015, and the related notes to the audited consolidated financial statements were previously filed as Item 8 of Energen’s Annual Report on Form 10-K filed with the SEC on February 28, 2018 and are incorporated by reference as Exhibit 99.2 hereto and are incorporated by reference into this Item 9.01(a).

The unaudited consolidated financial statement of Energen Corporation, comprised of the balance sheet as of September 30, 2018 and December 31, 2017, the related statements of operations for the nine months ended September 30, 2018 and 2017, the related statements of comprehensive income for the nine months ended September 30, 2018 and 2017, the related statements of cash flows for the nine months ended September 30, 2018 and 2017, and the related condensed notes to the unaudited consolidated financial statements were previously filed as Item 1 of Energen’s Quarterly Report on Form 10-Q filed with the SEC on November 8, 2018 and are incorporated by reference as Exhibit 99.3 hereto and are incorporated by reference into this Item 9.01(a).

(b) Pro Forma Financial Information

The unaudited pro forma condensed combined statements of operations for the year ended December 31, 2017, and for the nine months ended September 30, 2018, which combine the historical statements of consolidated operations of Diamondback and Energen, giving effect to the Merger and related transactions as if they had been consummated on January 1, 2017, the beginning of the earliest period presented. The unaudited pro forma condensed combined balance sheet combines the historical consolidated balance sheets of Diamondback and Energen as of September 30, 2018, giving effect to the Merger as if it had been consummated on September 30, 2018. The historical consolidated financial statements of Energen have been adjusted to reflect certain reclassifications in order to conform to Diamondback’s financial statement presentation. These unaudited pro forma condensed combined financial statements were previously filed by Diamondback with the SEC as Exhibit 99.1 to its Registration Statement on Form S-3 (File No. 333-228584) filed on November 29, 2018 and is incorporated by reference as Exhibit 99.4 hereto and are incorporated by reference into this Item 9.01(b).

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Exhibit 10.1

Execution Version

NINTH AMENDMENT TO SECOND AMENDED AND RESTATED

CREDIT AGREEMENT AND FOURTH AMENDMENT TO AMENDED AND RESTATED GUARANTY AND

COLLATERAL AGREEMENT

DATED AS OF NOVEMBER 29, 2018

AMONG

DIAMONDBACK ENERGY, INC.,

AS PARENT GUARANTOR

DIAMONDBACK O&G LLC,

AS BORROWER,

THE OTHER GUARANTORS,

WELLS FARGO BANK, NATIONAL ASSOCIATION,

AS ADMINISTRATIVE AGENT,

AND

THE LENDERS PARTY HERETO

WELLS FARGO SECURITIES, LLC, AS

SOLE BOOK RUNNER AND SOLE LEAD ARRANGER

JPMORGAN CHASE BANK, N.A., CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH,

GOLDMAN SACHS BANK USA, CITIBANK, N.A. AND BANK OF AMERICA, N.A., AS

CO-DOCUMENTATION AGENTS

CAPITAL ONE, N.A., THE BANK OF NOVA SCOTIA AND U.S. BANK NATIONAL ASSOCIATION AS

AS CO-SYNDICATION AGENTS

NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT

AGREEMENT AND FOURTH AMENDMENT TO AMENDED AND RESTATED

GUARANTY AND COLLATERAL AGREEMENT

THIS NINTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT AND FOURTH AMENDMENT TO AMENDED AND RESTATED GUARANTY AND COLLATERAL AGREEMENT (this “Amendment”) dated as of November 29, 2018 is among: DIAMONDBACK ENERGY, INC., a Delaware corporation, as the Parent Guarantor (the “Parent Guarantor”); DIAMONDBACK O&G LLC, a Delaware limited liability company (the “Borrower”); each of the undersigned guarantors (together with the Parent Guarantor, the “Guarantors”); each of the Lenders (as such term is defined in the Credit Agreement referred to below) party hereto; and WELLS FARGO BANK, NATIONAL ASSOCIATION (“Wells”), as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, the “Administrative Agent”).

R E C I T A L S

A. The Parent Guarantor, the Borrower, the Administrative Agent and the Lenders are parties to that certain Second Amended and Restated Credit Agreement dated as of November 1, 2013, as amended by that certain First Amendment dated as of June 9, 2014, that certain Second Amendment dated as of November 13, 2014, that certain Third Amendment dated as of June 21, 2016, that certain Fourth Amendment dated as of December 15, 2016, that certain Fifth Amendment dated as of November 28, 2017, that certain Sixth Amendment dated as of May 25, 2018, that certain Seventh Amendment dated as of August 31, 2018 and that certain Eighth Amendment dated as of October 26, 2018 (as such may be further amended, modified or supplemented, the “Credit Agreement”), pursuant to which the Lenders have made certain credit available to and on behalf of the Borrower.

B. The Borrower has requested and the Lenders signatory hereto have agreed to amend certain provisions of the Credit Agreement as set forth herein.

C. Now, therefore, to induce the Administrative Agent and the Lenders to enter into this Amendment and in consideration of the premises and the mutual covenants herein contained, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

Section 1. Defined Terms. Each capitalized term used herein but not otherwise defined herein has the meaning given such term in the Credit Agreement as amended by this Amendment. Unless otherwise indicated, all section references in this Amendment refer to sections of the Credit Agreement.

Section 2. Amendments to Credit Agreement. The Credit Agreement is hereby amended in accordance with Exhibit A hereto by deleting the stricken text (indicated textually in the same manner as the following example: stricken text) and by inserting the double-underlined text (indicated textually in the same manner as the following example: double-underlined text), in each case in the place where such text appears therein.

Section 3. Amendment to Guaranty Agreement. Schedules 1 through 5 of the Guaranty Agreement are hereby amended by deleting such Schedules in their entirety and replacing them with the attached Schedules 1 through 5.

Section 4. Conditions Precedent. This Amendment shall become effective on the date (the “Amendment Effective Date”) when each of the following conditions is satisfied (or waived in accordance with Section 12.02):

4.1 The Administrative Agent shall have received from all of the Lenders, the Guarantors and the Borrower, counterparts (in such number as may be requested by the Administrative Agent) of this Amendment signed on behalf of such Person.

4.2 The Administrative Agent and the Lenders shall have received all fees and other amounts due and payable on or prior to the date hereof, including, to the extent invoiced, reimbursement or payment of all documented out-of-pocket expenses required to be reimbursed or paid by the Borrower under the Credit Agreement.

4.3 The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower certifying that: (a) Energen Corporation and Sidewinder Merger Sub Inc., a Subsidiary of the Parent Guarantor, are concurrently consummating the merger in accordance with the terms of the merger documents previously provided to the Administrative Agent (with all of the material conditions precedent thereto having been satisfied in all material respects by the parties thereto), and (b) attached thereto is a true and complete copy of the certificate of merger in the form being filed with the Secretary of State of the State of Alabama.

4.4 The Administrative Agent shall have received a certificate of a Responsible Officer of the Parent Guarantor certifying that the Credit Agreement dated as of September 2, 2014 among Energen Corporation, as the borrower, Wells Fargo Bank, National Association, as the administrative agent and the lenders and other agents party thereto is concurrently being repaid in full, that the commitments thereunder are being terminated and that all Liens thereunder are being released.

4.5 No Default shall have occurred and be continuing as of the date hereof, after giving effect to the terms of this Amendment.

The Administrative Agent is hereby authorized and directed to declare this Amendment to be effective when it has received documents confirming or certifying, to the satisfaction of the Administrative Agent, compliance with the conditions set forth in this Section 4 or the waiver of such conditions as permitted in Section 12.02. Such declaration shall be final, conclusive and binding upon all parties to the Credit Agreement for all purposes.

Section 5. Miscellaneous.

5.1 Confirmation. The provisions of the Credit Agreement, as amended by this Amendment, shall remain in full force and effect following the effectiveness of this Amendment.

Schedule I - 2

5.2 Ratification and Affirmation; Representations and Warranties. Each of the Guarantors and the Borrower hereby (a) ratifies and affirms its obligations under, and acknowledges its continued liability under, each Loan Document to which it is a party and agrees that each Loan Document to which it is a party remains in full force and effect as expressly amended hereby and (b) represents and warrants to the Lenders that as of the date hereof, after giving effect to the terms of this Amendment:

5.3 Counterparts. This Amendment may be executed by one or more of the parties hereto in any number of separate counterparts, and all of such counterparts taken together shall be deemed to constitute one and the same instrument. Delivery of this Amendment by facsimile or electronic transmission shall be effective as delivery of a manually executed counterpart hereof.

5.4 Elected Commitment. From and after the effective date of this Amendment until adjusted pursuant to Section 2.07A of the Credit Agreement, the Aggregate Elected Commitment Amount shall be $2.0 billion.

5.5 NO ORAL AGREEMENT. THIS AMENDMENT, THE CREDIT AGREEMENT AND THE OTHER LOAN DOCUMENTS EXECUTED IN CONNECTION HEREWITH AND THEREWITH REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT UNWRITTEN ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

5.6 GOVERNING LAW. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF TEXAS.

5.7 Payment of Expenses. In accordance with Section 12.03, the Borrower agrees to pay or reimburse the Administrative Agent for all of its reasonable out-of-pocket expenses incurred in connection with this Amendment, any other documents prepared in connection herewith and the transactions contemplated hereby, including, without limitation, the reasonable fees, charges and disbursements of counsel to the Administrative Agent.

5.8 Severability. Any provision of this Amendment that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

Schedule I - 3

5.9 Successors and Assigns. This Amendment shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns.

5.10 Loan Document. This Amendment is a Loan Document.

[SIGNATURES BEGIN NEXT PAGE]

Schedule I - 4

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of the date first written above.

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

SIGNATURE PAGE

NINTH AMENDMENT TO CREDIT AGREEMENT AND FOURTH AMENDMENT TO GUARANTY AND

COLLATERAL AGREEMENT

Exhibit A

[See Attached]

UNOFFICIAL CONFORMED VERSION, REFLECTING THE FIRST AMENDMENT DATED AS OF JUNE 9, 2014, THE SECOND AMENDMENT DATED AS OF NOVEMBER 13, 2014, THE THIRD AMENDMENT DATED AS OF JUNE 21, 2016, THE FOURTH AMENDMENT DATED AS OF DECEMBER 15, 2016, THE FIFTH AMENDMENT DATED AS OF NOVEMBER 28, 2017, THE SIXTH AMENDMENT DATED AS OF MAY 25, 2018, THE SEVENTH AMENDMENT DATED AS OF AUGUST 31, 2018 AND THE EIGHTH AMENDMENT DATED AS OF OCTOBER 26, 2018.

Exhibit A to Ninth Amendment

**FOR REFERENCE ONLY. NOT A LEGALLY OPERATIVE DOCUMENT.**

SECOND AMENDED AND RESTATED CREDIT AGREEMENT

DATED AS OF

NOVEMBER 1, 2013

AMONG

DIAMONDBACK ENERGY, INC.,

AS PARENT GUARANTOR

DIAMONDBACK O&G LLC,

AS BORROWER,

WELLS FARGO BANK, NATIONAL ASSOCIATION,

AS ADMINISTRATIVE AGENT,

AND

THE LENDERS PARTY HERETO

WELLS FARGO SECURITIES, LLC, AS

SOLE BOOK RUNNER AND SOLE LEAD ARRANGER

JPMORGAN CHASE BANK, N.A., CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH,

GOLDMAN SACHS BANK USA, CITIBANK, N.A. AND BANK OF AMERICA, N.A., AS

CO-DOCUMENTATION AGENTS

CAPITAL ONE, N.A., THE BANK OF NOVA SCOTIA AND U.S. BANK NATIONAL

ASSOCIATION, AS CO-SYNDICATION AGENTS

Exhibit A to Ninth Amendment

TABLE OF CONTENTS

i

ii

iii

iv

Exhibit A to Ninth Amendment

ANNEXES, EXHIBITS AND SCHEDULES

v

Exhibit A to Ninth Amendment

THIS SECOND AMENDED AND RESTATED CREDIT AGREEMENT dated as of November 1, 2013 is among: Diamondback Energy, Inc., a Delaware corporation, as the Parent Guarantor; Diamondback O&G LLC, a Delaware limited liability company, as borrower (the “Borrower”); each of the Lenders from time to time party hereto; and Wells Fargo Bank, National Association (in its individual capacity, “Wells Fargo”), as administrative agent for the Lenders (in such capacity, together with its successors in such capacity, the “Administrative Agent”).

R E C I T A L S

A. The Borrower, the Administrative Agent and other financial institutions named and defined therein as lenders and agents entered into that certain Amended and Restated Credit Agreement dated as of July 24, 2012, as amended by that certain First Amendment dated as of July 31, 2012, that certain Second Amendment dated as of September 28, 2012, that certain Third Amendment dated as of August 30, 2013 and that certain Fourth Amendment dated as of September 6, 2013, pursuant to which such lenders provided certain loans to and extensions of credit on behalf of the Borrower (as heretofore amended, modified or supplemented, the “Existing Credit Agreement”).

B. The Parent Guarantor and the Borrower have requested, and the Lenders have agreed, to amend and restate the Existing Credit Agreement subject to the terms and conditions of this Agreement.

C. Now, therefore, in consideration of the mutual covenants and agreements herein contained and of the loans, extensions of credit and commitments hereinafter referred to, the parties hereto agree as follows:

ARTICLE I

Definitions and Accounting Matters

Section 1.01 Terms Defined Above. As used in this Agreement, each term defined above has the meaning indicated above.

Section 1.02 Certain Defined Terms. As used in this Agreement, the following terms have the meanings specified below:¹

“ABR”, when used in reference to any Loan or Borrowing, refers to whether such Loan, or the Loans comprising such Borrowing, are bearing interest at a rate determined by reference to the Alternate Base Rate.

“Acquisition Swaps” has the meaning assigned such term in Section 9.18(a)(i)(C).²

“Additional Lender” has the meaning assigned to such term in Section 2.07A(b)(i).³

“Additional Lender Agreement” has the meaning assigned to such term in Section 2.07A(b)(ii)(G).⁴

“Adjusted LIBO Rate” means, with respect to any Eurodollar Borrowing for any Interest Period, an interest rate per annum equal to the LIBO Rate for such Interest Period multiplied by the Statutory Reserve Rate.

“Administrative Questionnaire” means an Administrative Questionnaire in a form supplied by the Administrative Agent.

“Affected Loans” has the meaning assigned such term in Section 5.05.

“Affiliate” means with respect to a specified Person, another Person that directly, or indirectly through one or more intermediaries, Controls or is Controlled by or is under common Control with the Person specified.

“Agents” means, collectively, the Administrative Agent and the Syndication Agents; and “Agent” shall mean either the Administrative Agent or a Syndication Agent, as the context requires.

“Aggregate Elected Commitment Amount” at any time shall equal the sum of the Elected Commitment Amounts, as the same may be modified from time to time pursuant to Section 2.07A, provided that the Aggregate Elected Commitment Amount shall not exceed 75% of the then effective Borrowing Base at any time the Borrowing Base is only being redetermined annually.⁵.

“Aggregate Maximum Credit Amounts” at any time shall equal the sum of the Maximum Credit Amounts, as the same may be reduced or terminated pursuant to Section 2.06.

“Agreement” means this Second Amended and Restated Credit Agreement, as amended by the First Amendment dated as of June 9, 2014, the Second Amendment dated as of November 13, 2014, the Third Amendment dated as of June 21, 2016, the Fourth Amendment dated as of December 15, 2016, the Fifth Amendment dated as of November 28, 2017, the Sixth Amendment dated as of May 25, 2018, the Seventh Amendment dated as of August 31, 2018, and the Eighth Amendment dated as of October 26, 2018, as the same may be further amended, modified or supplemented from time to time.⁶

“Ajax Acquisition” means the acquisition of certain Oil and Gas Properties pursuant to that certain Purchase and Sale Agreement, dated as of July 22, 2018, by and among Ajax Resources, LLC, Diamondback E&P LLC and the Parent Guarantor.

2

“Alternate Base Rate” means, for any day, a rate per annum equal to the greatest of (a) the Prime Rate in effect on such day, (b) the Federal Funds Effective Rate in effect on such day plus ¹⁄₂ of 1% and (c) (i) the Adjusted LIBO Rate for a three month Interest Period on such day (or if such day is not a Business Day, the immediately preceding Business Day) plus (ii) 1%, provided that, for the avoidance of doubt, the Adjusted LIBO Rate for any day shall be based on the rate at which dollar deposits of $5,000,000 with a three month maturity are offered by the principal London office of the Administrative Agent in immediately available funds in the London interbank market at approximately 11:00 a.m., London time, on such day (or the immediately preceding Business Days if such day is not a day on which banks are open for dealings in dollar deposits in the London interbank market). Any change in the Alternate Base Rate due to a change in the Prime Rate, the Federal Funds Effective Rate or the Adjusted LIBO Rate shall be effective from and including the effective date of such change in the Prime Rate, the Federal Funds Effective Rate or the Adjusted LIBO Rate, respectively.

“Applicable Law” means all applicable provisions of constitutions, laws, statutes, ordinances, rules, treaties, regulations, permits, licenses, approvals, interpretations and orders of courts or Governmental Authorities and all orders and decrees of all courts and arbitrators.

“Applicable Margin” means, for any day, with respect to any ABR Loan or Eurodollar Loan or with respect to the Commitment Fee Rate, as the case may be, the rate per annum set forth in the Borrowing Base Utilization Grid below based upon the Utilization Percentage then in effect:

Each change in the Applicable Margin and the Commitment Fee Rate shall apply during the period commencing on the effective date of such change and ending on the date immediately preceding the effective date of the next such change, provided, however, that if at any time the Borrower fails to deliver a Reserve Report pursuant to Section 8.12, then until such delivery the “Applicable Margin” and the “Commitment Fee Rate” mean the rate per annum set forth on the grid when the Utilization Percentage is at its highest level.

“Applicable Percentage” means, with respect to any Lender, the percentage of the Aggregate Elected Commitment Amount represented by such Lender’s Elected Commitment Amount as such percentage is set forth on Annex I; provided that if the Commitments have terminated or expired, the Applicable Percentages shall be determined based upon the Revolving Credit Exposures then outstanding.⁷

3

“Approved Counterparty” means (a) any Lender or any Affiliate of a Lender and (b) any other Person whose long term senior unsecured debt rating is A-/A3 by S&P or Moody’s (or their equivalent) or higher (or whose obligations under the relevant Swap Agreement are guaranteed by a Person that meets such long term senior unsecured debt rating test).

“Approved Petroleum Engineers” means (a) Netherland, Sewell & Associates, Inc., (b) Ryder Scott Company Petroleum Consultants, L.P., (c) Cawley, Gillespie & Associates, Inc., (d) Pinnacle Energy Services, LLC and (e) any other independent petroleum engineers reasonably acceptable to the Administrative Agent.

“Arranger” means Wells Fargo Securities, LLC, in its capacity as the sole book runner and sole lead arranger hereunder.

“Assignment and Assumption” means an assignment and assumption entered into by a Lender and an assignee (with the consent of any party whose consent is required by Section 12.04(b)), and accepted by the Administrative Agent, in the form of Exhibit F or any other form approved by the Administrative Agent.

“Availability Period” means the period from and including the Effective Date to but excluding the Termination Date.

“Bail-In Action” means the exercise of any Write-Down and cConversion Powers by the applicable EEA Resolution Authority in respect of any liability of an EEA Financial Institution.⁸

“Bail-In Legislation” means, with respect to any EEA Member Country implementing Article 55 of Directive 2014/59/EU of the European Parliament and of the Council of the European Union, the implementing law for such EEA Member Country from time to time which is described in the EU Bail-In Legislation Schedule.⁹

“Beneficial Ownership Certification” means a certification regarding beneficial ownership as required by the Beneficial Ownership Regulation.¹⁰

“Beneficial Ownership Regulation” means 31 C.F.R. § 1010.230.

“Benefiting Guarantor” means a Guarantor for which funds or other support are necessary for such Guarantor to constitute an Eligible Contract Participant.

“Bison Drilling” means Bison Drilling and Field Services LLC, a Delaware limited liability company, formerly known as Windsor Drilling LLC.

“Board” means the Board of Governors of the Federal Reserve System of the United States of America or any successor Governmental Authority.

4

“Borrowing” means Loans of the same Type, made, converted or continued on the same date and, in the case of Eurodollar Loans, as to which a single Interest Period is in effect.

“Borrowing Base” means at any time an amount equal to the amount determined in accordance with Section 2.07, as the same may be adjusted from time to time pursuant to Section 2.07(e), Section 2.07(f), Section 8.13(c), Section 9.05(n)(iii), or Section 9.12(d).¹¹

“Borrowing Base Deficiency” occurs if at any time the total Revolving Credit Exposures exceed the Borrowing Base then in effect.

“Borrowing Request” means a request by the Borrower for a Borrowing in accordance with Section 2.03.

“Business Day” means any day that is not a Saturday, Sunday or other day on which commercial banks in New York City or Houston, Texas are authorized or required by law to remain closed; and if such day relates to a Borrowing or continuation of, a payment or prepayment of principal of or interest on, or a conversion of or into, or the Interest Period for, a Eurodollar Loan or a notice by the Borrower with respect to any such Borrowing or continuation, payment, prepayment, conversion or Interest Period, any day which is also a day on which banks are open for dealings in dollar deposits in the London interbank market.

“Capital Leases” means, in respect of any Person, all leases which shall have been, or should have been, in accordance with GAAP, recorded as capital leases on the balance sheet of the Person liable (whether contingent or otherwise) for the payment of rent thereunder.

“Cash Collateralize” means, to pledge and deposit with or deliver to the Administrative Agent, for the benefit of one or more of the Issuing Bank or the Lenders, as collateral for LC Exposure or obligations of the Lenders to fund participations in respect of LC Exposure, cash or deposit account balances or, if the Administrative Agent and the Issuing Bank shall agree, in their sole discretion, other credit support, in each case pursuant to documentation in form and substance satisfactory to the Administrative Agent and the Issuing Bank. “Cash Collateral” shall have a meaning correlative to the foregoing and shall include the proceeds of such Cash Collateral and other credit support.

“Cash Management Agreement” means any agreement to provide cash management services, including treasury, depository, overdraft, credit or debit card, electronic funds transfer and other cash management arrangements.

“Cash Management Provider” means any Person that, at the time it enters into a Cash Management Agreement, is a Lender, an Affiliate of a Lender, the Administrative Agent or an Affiliate of the Administrative Agent, in its capacity as a party to such Cash Management Agreement.

5

“Casualty Event” means any loss, casualty or other insured damage to, or any nationalization, taking under power of eminent domain or by condemnation or similar proceeding of, any Property of the Parent Guarantor, the Borrower or any of their Restricted Subsidiaries having a fair market value in excess of $500,000.¹²25,000,000 not fully covered by insurance, subject to normal deductibles.

“Change in Control” means the acquisition of ownership, directly or indirectly, beneficially or of record, by any Person or group (within the meaning of the Securities Exchange Act of 1934 and the rules of the SEC thereunder as in effect on the date hereof) other than the Permitted Holders, of Equity Interests representing more than 50% of the aggregate ordinary voting power represented by the issued and outstanding Equity Interests of the Borrower.

“Change in Law” means (a) the adoption of any law, treaty, rule or regulation after the date of this Agreement, (b) any change in any law, treaty, rule or regulation or in the interpretation or application thereof by any Governmental Authority after the date of this Agreement or (c) compliance by any Lender or the Issuing Bank (or, for purposes of Section 5.01(b), by any lending office of such Lender or by such Lender’s or the Issuing Bank’s holding company, if any) with any request, guideline or directive (whether or not having the force of law) of any Governmental Authority made or issued after the date of this Agreement. Notwithstanding anything herein to the contrary, (i) the Dodd-Frank Wall Street Reform and Consumer Protection Act and all requests, rules, guidelines, requirements or directives thereunder or issued in connection therewith (whether or not having the force of law) or in implementation thereof, and (ii) all requests, rules, regulations, guidelines, interpretations, requirements, interpretations and directives promulgated by the Bank for International Settlements, the Basel Committee on Banking Supervision (or any successor or similar authority) or the United States or foreign regulatory authorities (whether or not having the force of law), in each case pursuant to Basel III, shall, in each case, be deemed to be a Change in Law, regardless of the date enacted, adopted, issued or implemented.

“Code” means the Internal Revenue Code of 1986, as amended from time to time, and any successor statute.

“Commitment” means, with respect to each Lender, the commitment of such Lender to make Loans and to acquire participations in Letters of Credit hereunder, expressed as an amount representing the maximum aggregate amount of such Lender’s Revolving Credit Exposure hereunder, as such commitment may be (a) modified from time to time pursuant to Section 2.06 and Section 2.07A and (b) modified from time to time pursuant to assignments by or to such Lender pursuant to Section 12.04(b), and “Commitments” means the aggregate amount of the Commitments of all Lenders. The amount representing each Lender’s Commitment shall at any time be the least of such Lender’s: (i) Maximum Credit Amount, (ii) Elected Commitment Amount and (iii) Applicable Percentage of the then effective Borrowing Base.¹³

6

“Commitment Fee Rate” has the meaning set forth in the definition of “Applicable Margin”.

“Commodity Exchange Act” means the Commodity Exchange Act (7 U.S.C. § 1 et seq.), as amended and any successor statute.

“Consolidated Net Income” means with respect to the Parent Guarantor and the Consolidated Restricted Subsidiaries, for any period of determination, the aggregate of the net income (or loss) of the Parent Guarantor and the Consolidated Restricted Subsidiaries for such period determined on a consolidated basis in accordance with GAAP; provided that there shall be excluded from such net income (to the extent otherwise included therein) the following: (a) the net income of an Unrestricted Subsidiary or any Person in which the Parent Guarantor or any Consolidated Restricted Subsidiaries have an interest (which interest does not cause the net income of such other Person to be consolidated with the net income of the Parent Guarantor and the Consolidated Restricted Subsidiaries in accordance with GAAP), except to the extent of the amount of dividends or distributions actually paid in cash during such period by such Unrestricted Subsidiary or other Person to the Parent Guarantor or to a Consolidated Restricted Subsidiary, as the case may be; (b) the net income (but not loss) during such period of any Consolidated Restricted Subsidiary to the extent that the declaration or payment of dividends or similar distributions or transfers or loans by that Consolidated Restricted Subsidiary is not at the time permitted by operation of the terms of its charter or any agreement, instrument or Governmental Requirement applicable to such Consolidated Restricted Subsidiary or is otherwise restricted or prohibited, in each case determined in accordance with GAAP; (c) the net income (or loss) of any Person acquired in a pooling-of-interests transaction for any period prior to the date of such transaction; (d) any extraordinary gains or losses during such period and (e) any gains or losses attributable to writeups or writedowns of assets, including ceiling test writedowns; and provided further that if the Parent Guarantor or any Consolidated Restricted Subsidiary shall acquire or dispose of any Property during such period or a Subsidiary shall be redesignated as either an Unrestricted Subsidiary or a Restricted Subsidiary, then Consolidated Net Income shall be calculated after giving pro forma effect to such acquisition, disposition or redesignation, as if such acquisition, disposition or redesignation had occurred on the first day of such period.¹⁴

“Consolidated Restricted Subsidiary” means each Consolidated Subsidiary that is a Restricted Subsidiary.¹⁵

“Consolidated Subsidiaries” means each Subsidiary of the Parent Guarantor (whether now existing or hereafter created or acquired) the financial statements of which shall be (or should have been) consolidated with the financial statements of the Parent Guarantor in accordance with GAAP.

“Consolidated Unrestricted Subsidiary” means each Consolidated Subsidiary that is an Unrestricted Subsidiary.¹⁶

7

“Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of a Person, whether through the ability to exercise voting power, by contract or otherwise. For the purposes of this definition, and without limiting the generality of the foregoing, any Person that owns directly or indirectly 10% or more of the Equity Interests having ordinary voting power for the election of the directors or other governing body of a Person (other than as a limited partner of such other Person) will be deemed to “control” such other Person. “Controlling” and “Controlled” have meanings correlative thereto.

“Debt” means, for any Person, the sum of the following (without duplication): (a) all obligations of such Person for borrowed money or evidenced by bonds, bankers’ acceptances, debentures, notes or other similar instruments; (b) all obligations of such Person (whether contingent or otherwise) in respect of letters of credit, surety or other bonds and similar instruments; (c) all accounts payable and all accrued expenses, liabilities or other obligations of such Person to pay the deferred purchase price of Property or services, but excluding those from time to time incurred in the ordinary course of business that are not greater than sixty (60) days past the date such payment is due or that are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (d) all obligations under Capital Leases; (e) all obligations under Synthetic Leases; (f) all Debt (as defined in the other clauses of this definition) of others secured by (or for which the holder of such Debt has an existing right, contingent or otherwise, to be secured by) a Lien on any Property of such Person, whether or not such Debt is assumed by such Person; (g) all Debt (as defined in the other clauses of this definition) of others guaranteed by such Person or inwith respect to which such Person otherwise assures a creditor against loss of the Debt (howsoever such assurance shall be made) to the extent of the lesser of the amount of such Debt and the maximum stated amount of such guarantee or assurance against loss; (h) all obligations or undertakings of such Person to maintain or cause to be maintained the financial position or covenants of others or to purchase the Debt or Property of others; (i) obligations to deliver commodities, goods or services, including, without limitation, Hydrocarbons, in consideration of one or more advance payments, other than gas balancing arrangements in the ordinary course of business; (j) obligations to pay for goods or services even if such goods or services are not actually received or utilized by such Person; (k) any Debt of a partnership for which such Person is liable either by agreement, by operation of law or by a Governmental Requirement but only to the extent of such liability; (l) Disqualified Capital Stock; and (m) the undischarged balance of any production payment created by such Person or for the creation of which such Person directly or indirectly received payment. The Debt of any Person shall include all obligations of such Person of the character described above to the extent such Person remains legally liable in respect thereof notwithstanding that any such obligation is not included as a liability of such Person under GAAP. Notwithstanding the foregoing, “Debt” shall not include (1) any obligation arising from agreements of the Parent Guarantor, the Borrower or any Restricted Subsidiary providing for indemnification, contribution, adjustment of purchase price, earn-outs, holdbacks, deferred compensation or similar obligations, in each case, incurred or assumed in connection with the disposition or acquisition of any business, assets or Equity Interests of a Restricted Subsidiary in a transaction permitted by this Agreement or, (2) any obligation of a Loan Party in connection with a DrillCo pursuant to the agreement or agreements governing such DrillCo, including obligations to repurchase or otherwise purchase or acquire DrillCo Properties.¹⁷, (3) any equity commitment letter or any direct or indirect guaranty of, or other credit support for, an equity commitment letter if, at the time such letter or credit support is made or provided, the Investment contemplated thereby could have been made pursuant to Section 9.05, or (4) for the avoidance of doubt, Swap Obligations and direct or indirect guaranties thereof, and other credit support therefor.

8

“Debtor Relief Laws” means the Bankruptcy Code of the United States of America, and all other liquidation, conservatorship, bankruptcy, assignment for the benefit of creditors, moratorium, rearrangement, receivership, insolvency, reorganization, or similar debtor relief Laws of the United States or other applicable jurisdictions from time to time in effect.

“Default” means any event or condition which constitutes an Event of Default or which upon notice, lapse of time or both would, unless cured or waived, become an Event of Default.

“Defaulting Lender” means any Lender that (a) has failed to (i) fund all or any portion of the Loans or participations in Letters of Credit required to be funded by it hereunder within two Business Days of the date such Loans or participations were required to be funded hereunder unless such Lender notifies the Administrative Agent and the Borrower in writing that such failure is the result of such Lender’s determination that one or more conditions precedent to funding (each of which conditions precedent, together with any applicable default, shall be specifically identified in such writing) has not been satisfied, or (ii) pay to the Administrative Agent, the Issuing Bank or any other Lender any other amount required to be paid by it hereunder (including in respect of its participation in Letters of Credit) within three Business Days of the date when due, (b) has notified the Borrower, the Administrative Agent or the Issuing Bank in writing that it does not intend to comply with its funding obligations hereunder, or has made a public statement to that effect (unless such writing or public statement relates to such Lender’s obligation to fund a Loan hereunder and states that such position is based on such Lender’s determination that a condition precedent to funding (which condition precedent, together with any applicable default, shall be specifically identified in such writing or public statement) cannot be satisfied), (c) has failed, within three Business Days after request by the Administrative Agent or the Borrower, to confirm in writing to the Administrative Agent and the Borrower that it will comply with its prospective funding obligations hereunder (provided that such Lender shall cease to be a Defaulting Lender pursuant to this clause (c) upon receipt of such written confirmation by the Administrative Agent and the Borrower), or (d) has, or has a direct or indirect parent company that has, (i) become the subject of a proceeding under any Debtor Relief Law, (ii) had appointed for it a receiver, custodian, conservator, trustee, administrator, assignee for the benefit of creditors or similar Person charged with reorganization or liquidation of its business or assets, including the FDIC or any other state or federal regulatory authority acting in such a capacity or (iii) become the subject of a Bail-In Action; provided that a Lender shall not be a Defaulting Lender solely by virtue of the ownership or acquisition of any Equity Interest in that Lender or any direct or indirect parent company thereof by a Governmental Authority so long as such ownership interest does not result in or provide such Lender with immunity from the jurisdiction

9

of courts within the United States or from the enforcement of judgments or writs of attachment on its assets or permit such Lender (or such Governmental Authority) to reject, repudiate, disavow or disaffirm any contracts or agreements made with such Lender. Any determination by the Administrative Agent that a Lender is a Defaulting Lender under clauses (a) through (d) above shall be conclusive and binding absent manifest error, and such Lender shall be deemed to be a Defaulting Lender (subject to Section 2.10) upon delivery of written notice of such determination to the Borrower, the Issuing Bank and each Lender.¹⁸

“Disqualified Capital Stock” means any Equity Interest that, by its terms (or by the terms of any security into which it is convertible or for which it is exchangeable) or upon the happening of any event, matures or is mandatorily redeemable for any consideration other than other Equity Interests (which would not constitute Disqualified Capital Stock), pursuant to a sinking fund obligation or otherwise, or is convertible or exchangeable for Debt or redeemable for any consideration other than other Equity Interests (which would not constitute Disqualified Capital Stock) at the option of the holder thereof, in whole or in part, on or prior to the date that is one year after the earlier of (a) the Maturity Date and (b) the date on which there are no Loans, LC Exposure or other obligations hereunder outstanding and all of the Commitments are terminated. Notwithstanding the foregoing, any Equity Interest that would constitute Disqualified Capital Stock solely because the holders of the Equity Interest have the right to require the Borrower to repurchase or redeem such Equity Interest upon or following the occurrence of a change of control or an asset sale will not constitute Disqualified Capital Stock if the terms of such Equity Interest provide that the Parent Guarantor or the relevant Restricted Subsidiary may not repurchase or redeem any such Equity Interest pursuant to such provisions unless such repurchase or redemption complies with Section 9.04 hereof.

“dollars” or “$” refers to lawful money of the United States of America.

“Domestic Subsidiary” means any Subsidiary that is organized under the laws of the United States of America or any state thereof or the District of Columbia.

“DrillCo” means an entity jointly formed, or an arrangement evidenced by a participation, development, production or similar agreement entered into, in each case, by a Loan Party and one or more other Persons (together with its or their Affiliates, each, a “DrillCo Party”) that (a) provides for a DrillCo Party to fund the majority of the capital for the development of one or more Properties and (b) enables the Loan Parties to achieve one of more of the following objectives: minimization of capital deployment to non-core assets; acceleration of drilling schedule; retention of potentially expiring acreage; or enhancement of long-term value of assets in lieu of outright sale thereof.¹⁹

“DrillCo Party” has the meaning assigned to such term in the definition of DrillCo.²⁰

10

“DrillCo Properties” means (a) in the case of a DrillCo that is an entity, all Properties contributed, sold or otherwise conveyed to such DrillCo and all Equity Interests in such DrillCo, (b) in the case of a DrillCo that is an agreement, all Properties subject to such agreement, including Properties directly or indirectly conveyed from time to time to a DrillCo Party and therefore no longer owned by a Loan Party, (c) funds and other Property received from a DrillCo Party in connection with a DrillCo, and (d) direct and indirect proceeds of any of the foregoing.²¹

“EBITDAX” means, for any period, the sum of Consolidated Net Income for such period plus the following expenses or charges to the extent deducted from Consolidated Net Income in such period: (a) interest, income taxes, depreciation, depletion, amortization, exploration expenses, extraordinary items and other similar noncash charges, including expenses relating to stock-based compensation, hedging, and ceiling test impairments, and (b) any reasonable expenses and charges (up to an aggregate of $10,000,00050,000,000 during any calendar year) related to any Investment, acquisition, disposition, offering of Equity Interests, recapitalization, or issuance or incurrence of IndebtednessDebt not prohibited hereunder (in each case, whether or not successful), minus all noncash income added to Consolidated Net Income.²²

“EEA Financial Institution” means (a) any institution established in any EEA Member Country which is subject to the supervision of an EEA Resolution Authority, (b) any entity established in an EEA Member Country which is a parent of an institution described in clause (a) of this definition, or (c) any institution established in an EEA Member Country which is a subsidiary of an institution described in clauses (a) or (b) of this definition and is subject to consolidated supervision with its parent.²³

“EEA Member Country” means any of the member states of the European Union, Iceland, Liechtenstein, and Norway.²⁴

“EEA Resolution Authority” means any public administrative authority or any Person entrusted with public administrative authority of any EEA Member Country (including any delegee) having responsibility for the resolution of any EEA Financial Institution.²⁵

“Effective Date” means the date on which the conditions specified in Section 6.01 and 6.02(a) – (d) are satisfied (or waived in accordance with Section 12.02).

“Elected Commitment Amount” means, with respect to any Lender, the amount which is equal to the product of the percentage for such Lender as set forth on Annex I and the then effective Aggregate Elected Commitment Amount, as the same may be modified from time to time pursuant to Section 2.07A.²⁶

11

“Elected Commitment Amount Increase Agreement” has the meaning assigned to such term in Section 2.07A(b)(ii)(F).²⁷

“Eligible Contract Participant” means an “eligible contract participant” as defined in the Commodity Exchange Act and the regulations thereunder.

“Energen” means Energen Corporation and its Subsidiaries.

“Energen Merger” means the merger of Energen Merger Sub with and into Energen Corporation, with Energen Corporation as the surviving entity [, to be named [•]] (the “Energen Merger Survivor”).

“Energen Merger Sub” means Sidewinder Merger Sub Inc., an Alabama corporation.

“Energen Transaction” means (i) the formation and capitalization of Energen Merger Sub and (ii) the Energen Merger.

“Engineering Reports” has the meaning assigned such term in Section 2.07(c)(i).

“Environmental Laws” means any and all Governmental Requirements pertaining in any way to health, safety, the environment, the preservation or reclamation of natural resources, or the management, Release or threatened Release of any Hazardous Materials, in effect in any and all jurisdictions in which the Parent Guarantor, the Borrower or any Restricted Subsidiaries are conducting, or at any time have conducted business, or where any Property of the Parent Guarantor, the Borrower or any Restricted Subsidiaries is located, including the Oil Pollution Act of 1990 (“OPA”), as amended, the Clean Air Act, as amended, the Comprehensive Environmental, Response, Compensation, and Liability Act of 1980 (“CERCLA”), as amended, the Federal Water Pollution Control Act, as amended, the Occupational Safety and Health Act of 1970, as amended, the Resource Conservation and Recovery Act of 1976 (“RCRA”), as amended, the Safe Drinking Water Act, as amended, the Toxic Substances Control Act, as amended, the Superfund Amendments and Reauthorization Act of 1986, as amended, the Hazardous Materials Transportation Act, as amended, and other environmental conservation or protection Governmental Requirements.²⁸

“Environmental Permit” means any permit, registration, license, notice, approval, consent, exemption, variance, or other authorization required under or issued pursuant to applicable Environmental Laws.

“Equity Interests” means shares of capital stock, partnership interests, membership interests in a limited liability company, beneficial interests in a trust or other equity ownership interests in a Person, and any warrants, options or other rights entitling the holder thereof to purchase or acquire any such Equity Interests.

12

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended, and any successor statute.

“ERISA Affiliate” means each trade or business (whether or not incorporated) which together with the Parent Guarantor, the Borrower or a Subsidiary would be deemed to be a “single employer” within the meaning of section 4001(b)(1) of ERISA or subsections (b), (c), (m) or (o) of section 414 of the Code.

“EU Bail-In Legislation Schedule” means the EU Bail-In Legislation Schedule published by the Loan Market Association (or any successor Person), as in effect from time to time.²⁹

“Eurodollar”, when used in reference to any Loan or Borrowing, refers to whether such Loan, or the Loans comprising such Borrowing, are bearing interest at a rate determined by reference to the Adjusted LIBO Rate.

“Event of Default” has the meaning assigned such term in Section 10.01.

“Excepted Liens” means: (a) Liens for Taxes, assessments or other governmental charges or levies which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (b) Liens in connection with workers’ compensation, unemployment insurance or other social security, old age pension or public liability obligations which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (c) statutory landlord’s liens, operators’, vendors’, carriers’, warehousemen’s, repairmen’s, mechanics’, suppliers’, workers’, materialmen’s, construction or other like Liens arising by operation of law in theor ordinary course of business contracts or incident to the exploration, development, operation and maintenance of Oil and Gas Properties each of which is in respect of obligations that are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP; (d) contractual Liens which arise in the ordinary course of business under operating agreements, joint venture agreements, oil and gas partnership agreements, oil and gas leases, farm-in and farm-out agreements, division orders, contracts for the sale, transportation or exchange of oil and natural gas, unitization and pooling declarations and agreements, area of mutual interest agreements, overriding royalty agreements, marketing agreements, processing agreements, net profits agreements, development agreements, gas balancing or deferred production agreements, injection, repressuring and recycling agreements, salt water or other disposal agreements, seismic or other geophysical permits or agreements, and other agreements which are usual and customary in the oil and gas business and are for claims which are not delinquent or which are being contested in good faith by appropriate action and for which adequate reserves have been maintained in accordance with GAAP, provided that any such Lien referred to in this clause does not materially impair the use of the Property covered by such Lien for the purposes for which such Property is held by the Parent Guarantor, the Borrower or their Restricted Subsidiaries or materially impair the value of such Property subject thereto; (e) Liens

13

arising solely by virtue of any statutory or common law provision relating to banker’s liens, rights of set-off or similar rights and remedies and burdening only deposit accounts or other funds maintained with a creditor depository institution, provided that no such deposit account is a dedicated cash collateral account or is subject to restrictions against access by the depositor in excess of those set forth by regulations promulgated by the Board and no such deposit account is intended by the Parent Guarantor, the Borrower or their Restricted Subsidiaries to provide collateral to the depository institution; (f) easements, restrictions, servitudes, permits, conditions, covenants, exceptions or reservations in any Property of the Parent Guarantor, the Borrower or their Restricted Subsidiaries for the purpose of roads, pipelines, transmission lines, transportation lines, distribution lines for the removal of gas, oil, coal or other minerals or timber, and other like purposes, or for the joint or common use of real estate, rights of way, facilities and equipment, that do not secure any monetary obligations and which in the aggregate do not materially impair the use of such Property for the purposes of which such Property is held by the Parent Guarantor, the Borrower or their Restricted Subsidiaries or materially impair the value of such Property subject thereto; (g) Liens on cash or securities pledged to secure performance of tenders, surety and appeal bonds, government contracts, performance and return of money bonds, bids, trade contracts, leases, statutory obligations, regulatory obligations and other obligations of a like nature incurred in the ordinary course of business and (h) judgment and attachment Liens not giving rise to an Event of Default, provided that any appropriate legal proceedings which may have been duly initiated for the review of such judgment shall not have been finally terminated or the period within which such proceeding may be initiated shall not have expired and no action to enforce such Lien has been commenced; provided, further that Liens described in clauses (a) through (e) shall remain “Excepted Liens” only for so long as no action to enforce such Lien has been commenced and no intention to subordinate the first priority Lien granted in favor of the Administrative Agent and the Lenders is to be hereby implied or expressed by the permitted existence of such Excepted Liens.³⁰

“Excluded Swap Obligations” means, with respect to any Loan Party individually determined on a Loan Party by Loan Party basis, any Swap Obligation, if and to the extent that, all or a portion of the joint and several liability or the guaranty of such Loan Party for, or the grant by such Loan Party of a security interest or other Lien to secure, such Swap Obligation (or any guarantee thereof) is or becomes illegal under the Commodity Exchange Act or any rule, regulation or order of the Commodity Futures Trading Commission (or the application or official interpretation of any thereof) by virtue of such Loan Party’s failure for any reason to constitute an Eligible Contract Participant at the time such guarantee or the grant of such security interest or other Lien becomes effective with respect to, or any other time such Loan Party is by virtue of such guarantee or grant of such security interest or other Lien otherwise deemed to enter into, such Swap Obligation. If a Swap Obligation arises under a master agreement governing more than one swap, such exclusion shall apply only to the portion of such Swap Obligation that is attributable to swaps for which such guarantee, security interest or other Lien is or becomes illegal.

14

“Excluded Taxes” means, with respect to the Administrative Agent, any Lender, the Issuing Bank or any other recipient of any payment to be made by or on account of any obligation of the Borrower or any Guarantor hereunder or under any other Loan Document, (a) income or franchise taxes imposed on (or measured by) its net income by the United States of America or such other jurisdiction under the laws of which such recipient is organized or in which its principal office is located or, in the case of any Lender, in which its applicable lending office is located, (b) any branch profits taxes imposed by the United States of America or any similar tax imposed by any other jurisdiction in which the Borrower or any Guarantor is located and (c) in the case of a Foreign Lender, any withholding tax that is imposed on amounts payable to such Foreign Lender at the time such Foreign Lender becomes a party to this Agreement (or designates a new lending office) or is attributable to such Foreign Lender’s failure to comply with Section 5.03(g), except to the extent that such Foreign Lender (or its assignor, if any) was entitled, at the time of designation of a new lending office (or assignment), to receive additional amounts with respect to such withholding tax pursuant to Section 5.03(b) or Section 5.03(d).

“FATCA” means Sections 1471 through 1474 of the Code (as of the date hereof) and any regulations or official interpretations thereof (including any Revenue Ruling, Revenue Procedure, Notice or similar guidance issued by the U.S. Internal Revenue Service thereunder as a precondition to relief or exemption from Taxes under such provisions); provided that FATCA shall also include any amendments to Sections 1471 through 1474 of the Code if, as amended, FATCA provides a commercially reasonable mechanism to avoid the tax imposed thereunder by satisfying the information reporting and other requirements of FATCA.

“FCPA” means the Foreign Corrupt Practices Act of 1977, as amended.

“FDIC” means the Federal Deposit Insurance Corporation, or any successor thereto.

“Federal Funds Effective Rate” means, for any day, the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers, as published on the next succeeding Business Day by the Federal Reserve Bank of New York, or, if such rate is not so published for any day that is a Business Day, the average of the quotations for such day for such transactions received by the Administrative Agent from three Federal funds brokers of recognized standing selected by it.

“Fee Letter” means that certain fee letter between the Administrative Agent and the Borrower dated August 5, 2010.

“Fifth Amendment Effective Date” means November [             ]28, 2017.³¹

“Financial Officer” means, for any Person, the chief financial officer, principal accounting officer, treasurer or controller of such Person. Unless otherwise specified, all references herein to a Financial Officer means a Financial Officer of the Parent Guarantor.

15

“Financial Statements” means the financial statement or statements of the Borrower and its Consolidated Subsidiaries referred to in Section 7.04(a).

“Foreign Lender” means any Lender that is not (i) an individual who is a citizen or resident of the United States of America; (ii) a partnership or a corporation (or other entity taxed as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States of America; (iii) an estate whose income is includible in gross income for U.S. federal income tax purposes regardless of its source; or (iv) a trust if (1) a court within the United States of America is able to exercise primary supervision over the administration of the trust and one or more “United States person” (within the meaning of the Code) have the authority to control all substantial decisions of the trust, or (2) it has a valid election in effect under applicable Treasury regulations to be treated as a United States person.

“Foreign Subsidiary” means any Subsidiary that is not a Domestic Subsidiary.

“Fronting Exposure” means, at any time there is a Defaulting Lender, with respect to the Issuing Bank, such Defaulting Lender’s Applicable Percentage of the outstanding LC Exposure other than LC Exposure as to which such Defaulting Lender’s participation obligation has been reallocated to other Lenders or Cash Collateralized in accordance with the terms hereof.

“GAAP” means generally accepted accounting principles in the United States of America as in effect from time to time subject to the terms and conditions set forth in Section 1.05.

“Governmental Authority” means the government of the United States of America, any other nation or any political subdivision thereof, whether state or local, and any agency, authority, instrumentality, regulatory body, court, central bank or other entity exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to government over the Parent Guarantor, the Borrower, any Subsidiary, any of their Properties, the Administrative Agent, the Issuing Bank or any Lender.

“Governmental Requirement” means any law, statute, code, ordinance, order, determination, rule, regulation, judgment, decree, injunction, franchise, permit, certificate, license, rules of common law, authorization or other directive or requirement, whether now or hereinafter in effect, including, without limitation, Environmental Laws, energy regulations and occupational, safety and health standards or controls, of any Governmental Authority.

“Guarantor” means the Parent Guarantor and each Restricted Subsidiary that guarantees the Indebtedness pursuant to Section 8.14(b).³²

“Guaranty Agreement” means an agreement executed by the Guarantors in form and substance satisfactory to the Administrative Agent, unconditionally guarantying on a joint and several basis, payment of the Indebtedness, as the same may be amended, modified or supplemented from time to time.

16

“Hazardous Material” means any substance regulated or as to which liability might arise under any applicable Environmental Law including: (a) any chemical, compound, material, product, byproduct, substance or waste defined as or included in the definition or meaning of “hazardous substance,” “hazardous material,” “hazardous waste,” “solid waste,” “toxic waste,” “extremely hazardous substance,” “toxic substance,” “contaminant,” “pollutant,” or words of similar meaning or import found in any applicable Environmental Law; (b) Hydrocarbons, petroleum products, petroleum substances, natural gas, oil, oil and gas waste, crude oil, and any components, fractions, or derivatives thereof; and (c) radioactive materials, explosives, asbestos or asbestos containing materials, polychlorinated biphenyls, radon, infectious or medical waste.

“Highest Lawful Rate” means, with respect to each Lender, the maximum nonusurious interest rate, if any, that at any time or from time to time may be contracted for, taken, reserved, charged or received on the Notes or on other Indebtedness under laws applicable to such Lender which are presently in effect or, to the extent allowed by law, under such applicable laws which may hereafter be in effect and which allow a higher maximum nonusurious interest rate than applicable laws allow as of the date hereof.

“Hydrocarbon Interests” means all rights, titles, interests and estates now or hereafter acquired in and to oil and gas leases, oil, gas and mineral leases, or other liquid or gaseous hydrocarbon leases, mineral fee interests, overriding royalty and royalty interests, net profit interests and production payment interests, including any reserved or residual interests of whatever nature.

“Hydrocarbons” means oil, gas, casinghead gas, drip gasoline, natural gasoline, condensate, distillate, liquid hydrocarbons, gaseous hydrocarbons and all products refined or separated therefrom.

“Indebtedness” means any and all amounts owing or to be owing by the Parent Guarantor, the Borrower or any other Guarantor (whether direct or indirect (including those acquired by assumption), absolute or contingent, due or to become due, now existing or hereafter arising): (a) to the Administrative Agent, the Issuing Bank or any Lender under any Loan Document; (b) to any Secured Swap Party under any Secured Swap Obligations (provided that notwithstanding anything to the contrary herein or in any other Loan Document, “Indebtedness” shall not include with respect to any Person any Excluded Swap Obligations of such Person); (c) to any Cash Management Provider in respect of any Cash Management Agreement and (d) all renewals, extensions and/or rearrangements of any of the above.³³

“Indemnified Taxes” means Taxes other than Excluded Taxes.

17

“Indemnitee” has the meaning set forth in Section 12.03(b).

“Information” has the meaning set forth in Section 12.11.

“Interest Election Request” means a request by the Borrower to convert or continue a Borrowing in accordance with Section 2.04.

“Interest Payment Date” means (a) with respect to any ABR Loan, the last day of each March, June, September and December and (b) with respect to any Eurodollar Loan, the last day of the Interest Period applicable to the Borrowing of which such Loan is a part and, in the case of a Eurodollar Borrowing with an Interest Period of more than three months’ duration, each day prior to the last day of such Interest Period that occurs at intervals of three months’ duration after the first day of such Interest Period.

“Interest Period” means with respect to any Eurodollar Borrowing, the period commencing on the date of such Borrowing and ending on the numerically corresponding day in the calendar month that is one, two, three or six months thereafter, as the Borrower may elect; provided, that (a) if any Interest Period would end on a day other than a Business Day, such Interest Period shall be extended to the next succeeding Business Day unless such next succeeding Business Day would fall in the next calendar month, in which case such Interest Period shall end on the next preceding Business Day and (b) any Interest Period pertaining to a Eurodollar Borrowing that commences on the last Business Day of a calendar month (or on a day for which there is no numerically corresponding day in the last calendar month of such Interest Period) shall end on the last Business Day of the last calendar month of such Interest Period. For purposes hereof, the date of a Borrowing initially shall be the date on which such Borrowing is made and thereafter shall be the effective date of the most recent conversion or continuation of such Borrowing.

“Interim Redetermination” has the meaning assigned such term in Section 2.07(b).

“Interim Redetermination Date” means the date on which a Borrowing Base that has been determined pursuant to an Interim Redetermination becomes effective as provided in Section 2.07(d).

“Investment” means, for any Person: (a) the acquisition (whether for cash, Property, services or securities or otherwise) of Equity Interests of any other Person or any agreement to make any such acquisition (including, without limitation, any “short sale” or any sale of any securities at a time when such securities are not owned by the Person entering into such short sale); (b) the making of any deposit with, or advance, loan or capital contribution to, assumption of Debt of, purchase or other acquisition of any other Debt or equity participation or interest in, or other extension of credit to, any other Person (including the purchase of Property from another Person subject to an understanding or agreement, contingent or otherwise, to resell such Property to such Person, but excluding any such advance, loan or extension of credit having a term not exceeding ninety (90) days representing the purchase price of inventory or supplies sold by such Person in the ordinary course of business); or (c) the entering into of any guarantee of, or other contingent obligation (including the deposit of any Equity Interests to be sold) with respect to, Debt or other liability of any other Person and (without duplication) any amount committed to be advanced, lent or extended to such Person.

18

“Issuing Bank” means Wells Fargo, in its capacity as the issuer of Letters of Credit hereunder, and its successors in such capacity as provided in Section 2.08(i). The Issuing Bank may, in its discretion, arrange for one or more Letters of Credit to be issued by Affiliates of the Issuing Bank, in which case the term “Issuing Bank” shall include any such Affiliate with respect to Letters of Credit issued by such Affiliate.

“LC Commitment” means, at any time, (a) $100,000,000150,000,000 for Letters of Credit with respect to Qualified Midstream Persons, Qualified Midstream Assets and activities associated therewith and (b) $15,000,000 30,000,000 for all other Letters of Credit.³⁴

“LC Disbursement” means a payment made by the Issuing Bank pursuant to a Letter of Credit.

“LC Exposure” means, at any time, the sum of (a) the aggregate undrawn amount of all outstanding Letters of Credit at such time plus (b) the aggregate amount of all LC Disbursements that have not yet been reimbursed by or on behalf of the Borrower at such time. The LC Exposure of any Lender at any time shall be its Applicable Percentage of the total LC Exposure at such time.

“Lenders” means the Persons listed on Annex I and any Person that shall have become a party hereto pursuant to an Assignment and Assumption, other than any such Person that ceases to be a party hereto pursuant to an Assignment and Assumption.

“Letter of Credit” means any letter of credit issued pursuant to this Agreement.

“Letter of Credit Agreements” means all letter of credit applications and other agreements (including any amendments, modifications or supplements thereto) submitted by the Borrower, or entered into by the Borrower, with the Issuing Bank relating to any Letter of Credit.

“LIBO Rate” means, with respect to any Eurodollar Borrowing for any Interest Period, the rate appearing on Reuters Screen LIBOR01 Page as of 11:00 A.M., London time, two Business Days prior to the beginning of such Interest Period; provided that such rate shall never be less than 0.0%. In the event that such rate does not appear on such page (or otherwise on such screen), the “LIBO Rate” shall be determined by reference to such other comparable publicly available service for displaying Eurodollar rates as may be selected by the Administrative Agent or, in the absence of such availability, by reference to the rate at which the Administrative Agent is offered dollar deposits at or about 11:00 A.M., London time, two Business Days prior to the beginning of such Interest Period in the interbank Eurodollar market where its Eurodollar and foreign currency and exchange operations are then being conducted for delivery on the first day of such Interest Period for the number of days comprised therein.³⁵

19

“Lien” means any interest in Property securing an obligation owed to, or a claim by, a Person other than the owner of the Property, whether such interest is based on the common law, statute or contract, and whether such obligation or claim is fixed or contingent, and including but not limited to (a) the lien or security interest arising from a mortgage, encumbrance, pledge, security agreement, conditional sale or trust receipt or a lease, consignment or bailment for security purposes or (b) production payments and the like payable out of Oil and Gas Properties. The term “Lien” shall include easements, restrictions, servitudes, permits, conditions, covenants, exceptions or reservations. For the purposes of this Agreement, the Parent Guarantor, the Borrower or any Restricted Subsidiary shall be deemed to be the owner of any Property which it has acquired or holds subject to a conditional sale agreement, or leases under a financing lease or other arrangement pursuant to which title to the Property has been retained by or vested in some other Person in a transaction intended to create a financing.³⁶

“Loan Documents” means this Agreement, the Notes, the Letter of Credit Agreements, the Letters of Credit and the Security Instruments.

“Loans” means the loans made by the Lenders to the Borrower pursuant to this Agreement.

“Loan Party” means, collectively, the Borrower and each Guarantor.

“Majority Lenders” means, at any time while no Loans or LC Exposure is outstanding, two or more Lenders having more than fifty percent (50%) of the Aggregate Maximum Credit Amounts; and at any time while any Loans or LC Exposure is outstanding, two or more Lenders holding more than fifty percent (50%) of the outstanding aggregate principal amount of the Loans and participation interests in Letters of Credit (without regard to any sale by a Lender of a participation in any Loan under Section 12.04(c)); provided that the Maximum Credit Amounts and the principal amount of the Loans and participation interests in Letters of Credit of the Defaulting Lenders (if any) shall be excluded from the determination of Majority Lenders.

“Material Adverse Effect” means a material adverse change in, or material adverse effect on (a) the business, operations, Property or condition (financial or otherwise) of the Parent Guarantor, the Borrower and their Restricted Subsidiaries taken as a whole, (b) the ability of the Parent Guarantor, the Borrower, any Restricted Subsidiaries or any other Guarantor to perform any of its obligations under any Loan Document, (c) the validity or enforceability of any Loan Document or (d) the rights and remedies of or benefits available to the Administrative Agent, the Issuing Bank or any Lender under any Loan Document.³⁷

20

“Material Indebtedness” means Debt (other than the Loans and Letters of Credit), or obligations in respect of one or more Swap Agreements, of the Parent Guarantor, the Borrower or their Restricted Subsidiaries in an aggregate principal amount exceeding $50,000,000100,000,000. For purposes of determining Material Indebtedness, the “principal amount” of the obligations of the Parent Guarantor, the Borrower or their Restricted Subsidiaries in respect of any Swap Agreement at any time shall be the Swap Termination Value.³⁸

“Maturity Date” means November 1, 2022.³⁹

“Maximum Credit Amount” means, as to each Lender, the amount set forth opposite such Lender’s name on Annex I under the caption “Maximum Credit Amount”, as such amount may be (a) reduced or terminated from time to time in connection with a reduction or termination of the Aggregate Maximum Credit Amounts pursuant to Section 2.06(b), (b) increased from time to time pursuant to Section 2.07(A)(b), or (c) modified from time to time pursuant to any assignment permitted by Section 12.04(b).⁴⁰

“Minimum Collateral Amount” means, at any time, (i) with respect to Cash Collateral consisting of cash or deposit account balances, an amount equal to 105% of the Fronting Exposure of all Issuing Banks with respect to Letters of Credit issued and outstanding at such time and (ii) if the Borrower agrees to deliver Cash Collateral consisting of property other than cash or deposit account balances, an amount determined by the Administrative Agent and the Issuing Bank in their sole discretion.

“Moody’s” means Moody’s Investors Service, Inc. and any successor thereto that is a nationally recognized rating agency.

“Mortgaged Property” means any Property owned by the Parent Guarantor, the Borrower or any other Guarantor which is subject to the Liens existing and to exist under the terms of the Security Instruments.

“New Borrowing Base Notice” has the meaning assigned such term in Section 2.07(d).

“Ninth Amendment Closing Date” means November [29], 2018.

“Non-Defaulting Lender” means, at any time, each Lender that is not a Defaulting Lender at such time.

“Non-Recourse Debt” means any Debt of any Unrestricted Subsidiary, in each case in respect of which: the holder or holders thereof (a) shall have recourse only to, and shall have the right to require the obligations of such Unrestricted Subsidiary to be performed, satisfied, and paid only out of, (i) the Property of such Unrestricted Subsidiary and/or one or more other Unrestricted Subsidiaries and/or any other Person (other than the Parent Guarantor, the Borrower

21

and/or any Restricted Subsidiary) and (ii) the Equity Interests of an Unrestricted Subsidiary and (b) shall have no direct or indirect recourse (including by way of guaranty, support or indemnity) to the Parent Guarantor, the Borrower or any Restricted Subsidiary or to any of the Property of the Parent Guarantor, the Borrower or any Restricted Subsidiary, in each case other than Equity Interests held by them in Unrestricted Subsidiaries, whether for principal, interest, fees, expenses or otherwise.⁴¹

“Notes” means the promissory notes of the Borrower described in Section 2.02(d) and being substantially in the form of Exhibit A, together with all amendments, modifications, replacements, extensions and rearrangements thereof.

“OFAC” means the U.S. Department of the Treasury’s Office of Foreign Assets Control.

“Oil and Gas Properties” means (a) Hydrocarbon Interests; (b) the Properties now or hereafter pooled or unitized with Hydrocarbon Interests; (c) all presently existing or future unitization, pooling agreements and declarations of pooled units and the units created thereby (including without limitation all units created under orders, regulations and rules of any Governmental Authority) which may affect all or any portion of the Hydrocarbon Interests; (d) all operating agreements, contracts and other agreements, including production sharing contracts and agreements, which relate to any of the Hydrocarbon Interests or the production, sale, purchase, exchange or processing of Hydrocarbons from or attributable to such Hydrocarbon Interests; (e) all Hydrocarbons in and under and which may be produced and saved or attributable to the Hydrocarbon Interests, including all oil in tanks, and all rents, issues, profits, proceeds, products, revenues and other incomes from or attributable to the Hydrocarbon Interests; (f) all tenements, hereditaments, appurtenances and Properties in any manner appertaining, belonging, affixed or incidental to the Hydrocarbon Interests and (g) all Properties, rights, titles, interests and estates described or referred to above, including any and all Property, real or personal, now owned or hereinafter acquired and situated upon, used, held for use or useful in connection with the operating, working or development of any of such Hydrocarbon Interests or Property (excluding drilling rigs, automotive equipment, rental equipment or other personal Property which may be on such premises for the purpose of drilling a well or for other similar temporary uses) and including any and all oil wells, gas wells, injection wells or other wells, structures, fuel separators, liquid extraction plants, plant compressors, pumps, pumping units, field gathering systems, tanks and tank batteries, fixtures, valves, fittings, machinery and parts, engines, boilers, meters, apparatus, equipment, appliances, tools, implements, cables, wires, towers, casing, tubing and rods, surface leases, rights-of-way, easements and servitudes together with all additions, substitutions, replacements, accessions and attachments to any and all of the foregoing.

“Other Secured Persons” means each Lender, each Issuing Bank, each Secured Swap Party, each Indemnitee and any legal owner, holder, assignee or pledgee of any of the Indebtedness.⁴²

22

“Other Taxes” means any and all present or future stamp or documentary taxes or any other excise or Property taxes, charges or similar levies arising from any payment made hereunder or from the execution, delivery or enforcement of, or otherwise with respect to, this Agreement and any other Loan Document.

“Parent Guarantor” means Diamondback Energy, Inc., a Delaware corporation.

“Participant” has the meaning set forth in Section 12.04(c)(i).

“Participant Register” has the meaning set forth in 12.04(c)(iii).

“Permitted Acquisitions” means Investments in Persons (each, a “Permitted Acquisition Target”) engaged primarily in the business of acquiring, developing and producing Oil and Gas Properties or transporting or processing Hydrocarbons from or attributable to such Oil and Gas Properties, in each case if (i) the aggregate amount of all such Investments at any one time outstanding (measured by consideration paid at the time such Investment is made) does not exceed $200,000,000, (ii) immediately after making such Investment, either (A) such Person shall merge into the Borrower or a Guarantor or (B) such Person shall be a wholly-owned Subsidiary and the Borrower shall comply with Section 8.14(b) within the time period specified therein, and (iii) such Person shall not be a publicly-traded entity.⁴³.

“Permitted Acquisition Target” has the meaning set forth in the definition of “Permitted Acquisitions”.

“Permitted Holders” means (a) Wexford Capital LP and any Affiliated funds, investment vehicles, holding companies or other entities directly or indirectly owned, managed or controlled by Wexford Capital LP or any other Person that is a Permitted Holder, (b) any general partner, managing member or managing partner of any of the Persons described in clause (a) above and (c) the Parent Guarantor.

“Permitted Refinancing Debt” means Debt (for purposes of this definition, “new Debt”) incurred in exchange for, or proceeds of which are used to repay, repurchase, redeem, defease, refund, replace, acquire or otherwise retire or refinance, all or part of any other Debt (the “Refinanced Debt”); provided that (a) such new Debt is in an aggregate principal amount not in excess of the sum of (i) the aggregate principal amount then outstanding of the Refinanced Debt (or, if the Refinanced Debt is exchanged or acquired for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration thereof, such lesser amount) and (ii) an amount necessary to pay any accrued and unpaid interest on such Refinanced Debt and any fees and expenses, including premiums, related to such exchange or refinancing; (b) such new Debt has a stated maturity no earlier than the stated maturity of the Refinanced Debt and an average life no shorter than the average life of the Refinanced Debt; (c) such new Debt’s stated interest rate, fees, and premiums are on “market” terms; (d) such new Debt does not contain covenants that, taken as a whole, are materially more onerous to the Parent Guarantor, the

23

Borrower and the Restricted Subsidiaries than those imposed by the Refinanced Debt and (e) if the Refinanced Debt (or any guarantee thereof) is subordinated in right of payment to the Indebtedness (or, if applicable, the Guaranty Agreement), then such new Debt (and any guarantees thereof) is subordinated in right of payment to the Indebtedness (or, if applicable, the Guaranty Agreement) to at least the same extent as the Refinanced Debt or is otherwise subordinated on terms substantially reasonably satisfactory to the Administrative Agent.⁴⁴

“Person” means any natural person, corporation, limited liability company, trust, joint venture, association, company, partnership, Governmental Authority or other entity.

“Plan” means any employee pension benefit plan, as defined in section 3(2) of ERISA, which (a) is currently or hereafter sponsored, maintained or contributed to by the Parent Guarantor, the Borrower, a Subsidiary or an ERISA Affiliate or (b) was at any time during the six calendar years preceding the date hereof, sponsored, maintained or contributed to by the Parent Guarantor, Borrower, a Subsidiary or an ERISA Affiliate.

“Prime Rate” means the rate of interest per annum publicly announced from time to time by Wells Fargo as its prime rate in effect at its principal office in New York City; each change in the Prime Rate shall be effective from and including the date such change is publicly announced as being effective. Such rate is set by the Administrative Agent as a general reference rate of interest, taking into account such factors as the Administrative Agent may deem appropriate; it being understood that many of the Administrative Agent’s commercial or other loans are priced in relation to such rate, that it is not necessarily the lowest or best rate actually charged to any customer and that the Administrative Agent may make various commercial or other loans at rates of interest having no relationship to such rate.

“Pro Forma Property” has the meaning assigned such term in Section 9.18(a)(i)(C).⁴⁵

“Property” means any interest in any kind of property or asset, whether real, personal or mixed, or tangible or intangible, including, without limitation, cash, securities, accounts and contract rights.

“Proposed Borrowing Base” has the meaning assigned to such term in Section 2.07(c)(i).

“Proposed Borrowing Base Notice” has the meaning assigned to such term in Section 2.07(c)(ii).

“Qualified Midstream Assets” means assets used in the gathering, distributing, marketing, treating, processing, transporting of, or storage, disposal, or other handling of, Hydrocarbons, water, sand, minerals, chemicals or other products or substances commonly created, used, recovered, produced or processed in the conduct of the oil and gas business, including compression, pumping, treatment and disposal facilities, gathering lines and systems, and other assets commonly considered midstream assets or useful in connection with the conduct of midstream operations and for Equity Interests in Qualified Midstream Persons. For the avoidance of doubt, the Qualified Midstream Assets do not include any Oil and Gas Properties included in the Borrowing Base.⁴⁶

24

“Qualified Midstream Person” means (a) any Person if (i) substantially all of the assets of such Person consist of or will consist of Qualified Midstream Assets or (ii) all or substantially all of such Person’s business is ownership of, operation of, construction or development of, or direct or indirect investment in, Qualified Midstream Assets and (b) Rattler Midstream Partners LP, Rattler Midstream LLC, Rattler Midstream GP LLC and Tall City Towers LLC.

“Redemption” means with respect to any Debt, the repurchase, redemption, prepayment, repayment, defeasance or any other acquisition or retirement for value (or the segregation of funds with respect to any of the foregoing) of such Debt, except as provided in the definition of the term “Senior Unsecured Notes”. “Redeem” has the correlative meaning thereto.

“Redetermination Date” means, with respect to any Scheduled Redetermination or any Interim Redetermination, the date that the redetermined Borrowing Base related thereto becomes effective pursuant to Section 2.07(d).

“Register” has the meaning assigned such term in Section 12.04(b)(iv).

“Regulation D” means Regulation D of the Board, as the same may be amended, supplemented or replaced from time to time.

“Related Parties” means, with respect to any specified Person, such Person’s Affiliates and the respective directors, officers, employees, agents and advisors (including attorneys, accountants and experts) of such Person and such Person’s Affiliates.

“Release” means any depositing, spilling, leaking, pumping, pouring, placing, emitting, discarding, abandoning, emptying, discharging, migrating, injecting, escaping, leaching, dumping, or disposing.

“Remedial Work” has the meaning assigned such term in Section 8.10(a).

“Required Lenders” means, at any time while no Loans or LC Exposure is outstanding, two or more Lenders having at least sixty-six and two-thirds percent (66-2/3%) of the Aggregate Maximum Credit Amounts; and at any time while any Loans or LC Exposure is outstanding, two or more Lenders holding at least sixty-six and two-thirds percent (66-2/3%) of the outstanding aggregate principal amount of the Loans and participation interests in Letters of Credit (without regard to any sale by a Lender of a participation in any Loan under Section 12.04(c)); provided that the Maximum Credit Amounts and the principal amount of the Loans and participation interests in Letters of Credit of the Defaulting Lenders (if any) shall be excluded from the determination of Required Lenders.

25

“Reserve Report” means a report, in form and substance reasonably satisfactory to the Administrative Agent, setting forth, as of each January 1st or July 1st (or such other date in the event of an Interim Redetermination) the oil and gas reserves attributable to the Oil and Gas Properties of the Parent Guarantor the Borrower and the Restricted Subsidiaries, together with a projection of the rate of production and future net income, taxes, operating expenses and capital expenditures with respect thereto as of such date, based upon the pricing assumptions consistent with the Administrative Agent’s lending requirements at the time.⁴⁷

“Responsible Officer” means, as to any Person, the Chief Executive Officer, the President, any Financial Officer or any Vice President of such Person. Unless otherwise specified, all references to a Responsible Officer herein shall mean a Responsible Officer of the Parent Guarantor.

“Restricted Payment” means any dividend or other distribution (whether in cash, securities or other Property) with respect to any Equity Interests in the Parent Guarantor, the Borrower or any of the Restricted Subsidiaries or any payment (whether in cash, securities or other Property), including any sinking fund or similar deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or termination of any such Equity Interests in the Parent Guarantor, the Borrower or any Restricted Subsidiary or any option, warrant or other right to acquire any such Equity Interests in the Parent Guarantor, the Borrower or any Restricted Subsidiary.⁴⁸

“Restricted Subsidiary” means any Subsidiary of the Parent Guarantor or the Borrower that is not an Unrestricted Subsidiary.⁴⁹

“Revolving Credit Exposure” means, with respect to any Lender at any time, the sum of the outstanding principal amount of such Lender’s Loans and its LC Exposure at such time.

“Scheduled Redetermination” has the meaning assigned such term in Section 2.07(b).

“Scheduled Redetermination Date” means the date on which a Borrowing Base that has been redetermined pursuant to a Scheduled Redetermination becomes effective as provided in Section 2.07(d).

“SEC” means the Securities and Exchange Commission or any successor Governmental Authority.

“Secured Swap Agreement” means any Swap Agreement between the Parent Guarantor, the Borrower or any Restricted Subsidiary and any Person that is entered into prior to the time, or during the time, that such Person was a Lender or an Affiliate of a Lender (including any such Swap Agreement in existence prior to the date hereof), even if such Person ceases to be a Lender or an Affiliate of a Lender for any reason (any such Person, a “Secured Swap Party”). For the avoidance of doubt, for purposes of this definition and the definitions of “Secured Swap Party” and “Secured Swap Obligations,” the term “Lender” includes each Person that was a “Lender” under the Existing Credit Agreement at the relevant time.⁵⁰

26

“Secured Swap Obligations” means all amounts and other obligations owing to any Secured Swap Party under any Secured Swap Agreement; provided that, for the avoidance of doubt, if a Secured Swap Party ceases to be a Lender (or an Affiliate of a Lender), then the Secured Swap Obligations owing to such Secured Swap Party under any such Secured Swap Agreement shall not include any obligations arising from transactions entered into after the time that such Secured Swap Party ceases to be a Lender or an Affiliate of a Lender.

“Secured Swap Party” has the meaning assigned to such term in the definition of Secured Swap Agreement.

“Security Instruments” means the Guaranty Agreement, mortgages, deeds of trust and other agreements, instruments or certificates described or referred to in Exhibit E, and any and all other agreements, instruments, consents or certificates now or hereafter executed and delivered by the Parent Guarantor, the Borrower or any other Person (other than Swap Agreements with a Secured Swap Party or participation or similar agreements between any Lender and any other lender or creditor with respect to any Indebtedness pursuant to this Agreement) in connection with, or as security for the payment or performance of the Indebtedness, the Notes, this Agreement, or reimbursement obligations under the Letters of Credit, as such agreements may be amended, modified, supplemented or restated from time to time.

“Senior Secured Debt” means the Indebtedness under this Agreement.

“Senior Unsecured Notes” means Debt in the form of unsecured senior or senior subordinated notes issued by the Parent Guarantor or the Borrower, including exchange notes issued in exchange therefor pursuant to any registration rights agreement (it being agreed that any such exchange or offer to exchange shall not constitute a Redemption or an offer to Redeem for purposes of this Agreement), and, in each case, any guarantees thereof by the Parent Guarantor, the Borrower or a Guarantor; provided that (a) at the time of incurring such Debt (i) no Default has occurred and is then continuing and (ii) no Default would result from the incurrence of such Debt after giving effect to the incurrence of such Debt (and any concurrent repayment, redemption or satisfaction and discharge of Debt with the proceeds of such incurrence and for the avoidance of doubt, including pro forma compliance with Section 9.01(a)), (b) such Debt does not have any scheduled amortization prior to 91 days after the Maturity Date, (c) such Debt does not mature sooner than 91 days after the Maturity Date, (d) the terms of such Debt are not materially more onerous, taken as a whole, than the terms of this Agreement and the other Loan Documents, (e) such Debt and any guarantees thereof are on prevailing market terms for similarly situated companies and (f) with respect to Senior Unsecured Notes issued after the Effective Date, unless such adjustment is waived in accordance with Section 12.02, the Borrowing Base is adjusted as contemplated by Section 2.07(f) and the Borrower makes any prepayment required under Section 3.04(c)(iii).⁵¹

27

“Sixth Amendment Closing Date” means May 25, 2018.⁵²

“S&P” means Standard & Poor’s Ratings Group, a division of The McGraw-Hill Companies, Inc., and any successor thereto that is a nationally recognized rating agency.

“Statutory Reserve Rate” means a fraction (expressed as a decimal), the numerator of which is the number one and the denominator of which is the number one minus the aggregate of the maximum reserve percentages (including any marginal, special, emergency or supplemental reserves) expressed as a decimal established by the Board to which the Administrative Agent is subject with respect to the Adjusted LIBO Rate, for eurocurrency funding (currently referred to as “Eurocurrency Liabilities” in Regulation D of the Board). Such reserve percentages shall include those imposed pursuant to such Regulation D. Eurodollar Loans shall be deemed to constitute eurocurrency funding and to be subject to such reserve requirements without benefit of or credit for proration, exemptions or offsets that may be available from time to time to any Lender under such Regulation D or any comparable regulation. The Statutory Reserve Rate shall be adjusted automatically on and as of the effective date of any change in any reserve percentage.

“Subsidiary” means: (a) any Person of which at least a majority of the outstanding Equity Interests having by the terms thereof ordinary voting power to elect a majority of the board of directors, managers or other governing body of such Person (irrespective of whether or not at the time Equity Interests of any other class or classes of such Person shall have or might have voting power by reason of the happening of any contingency) is at the time directly or indirectly owned or controlled by the Parent Guarantor, the Borrower or one or more of their Subsidiaries and (b) any partnership of which the Parent Guarantor, the Borrower or any of their Subsidiaries is a general partner. Unless otherwise indicated herein, each reference to the term “Subsidiary” shall mean a Subsidiary of the Parent Guarantor or the Borrower, as the context requires.

“Swap Agreement” means any agreement with respect to any swap, forward, future or derivative transaction or option or similar agreement, whether exchange traded, “over-the- counter” or otherwise, involving, or settled by reference to, one or more rates, currencies, commodities, equity or debt instruments or securities, or economic, financial or pricing indices or measures of economic, financial or pricing risk or value or any similar transaction or any combination of these transactions; provided that no phantom stock or similar plan providing for payments only on account of services provided by current or former directors, officers, employees or consultants of the Parent Guarantor or its Subsidiaries shall be a Swap Agreement.

“Swap Obligation” means, with respect to any Person, any obligation to pay or perform under any agreement, contract or transaction that constitutes a “swap” within the meaning of section 1a(47) of the Commodity Exchange Act, including any such obligation comprised of a guaranty or a security interest or other Lien.

28

“Swap Termination Value” means, in respect of any one or more Swap Agreements, after taking into account the effect of any legally enforceable netting agreement relating to such Swap Agreements, (a) for any date on or after the date such Swap Agreements have been closed out and termination value(s) determined in accordance therewith, such termination value(s) and (b) for any date prior to the date referenced in clause (a), the amount(s) determined as the mark-to- market value(s) for such Swap Agreements, as determined by the counterparties to such Swap Agreements.

“Synthetic Leases” means, in respect of any Person, all leases which shall have been, or should have been, in accordance with GAAP, treated as operating leases on the financial statements of the Person liable (whether contingently or otherwise) for the payment of rent thereunder and which were properly treated as indebtedness for borrowed money for purposes of U.S. federal income taxes, if the lessee in respect thereof is obligated to either purchase for an amount in excess of, or pay upon early termination an amount in excess of, 80% of the residual value of the Property subject to such operating lease upon expiration or early termination of such lease.

“Taxes” means any and all present or future taxes, levies, imposts, duties, deductions, charges or withholdings imposed by any Governmental Authority.

“Termination Date” means the earlier of the Maturity Date and the date of termination of the Commitments.

“Third Amendment Effective Date” means June 21, 2016.⁵³

“Total Debt” means, at any date, all Debt of the Parent Guarantor and the Consolidated Restricted Subsidiaries, excluding non-cash obligations under ASC 815.⁵⁴

“Transactions” means, with respect to (a) the Borrower, the execution, delivery and performance by the Borrower of this Agreement and each other Loan Document to which it is a party, the borrowing of Loans, the use of the proceeds thereof and the issuance of Letters of Credit hereunder, and the grant of Liens by the Borrower on Mortgaged Properties and other Properties pursuant to the Security Instruments and (b) each Guarantor, the execution, delivery and performance by such Guarantor of each Loan Document to which it is a party, the guaranteeing of the Indebtedness and the other obligations under the Guaranty Agreement and such Guarantor’s grant of the security interests and provision of collateral under the Security Instruments, and the grant of Liens by such Guarantor on Mortgaged Properties pursuant to the Security Instruments.

“Type”, when used in reference to any Loan or Borrowing, refers to whether the rate of interest on such Loan, or on the Loans comprising such Borrowing, is determined by reference to the Alternate Base Rate or the Adjusted LIBO Rate.

29

“Unrestricted Subsidiary” means any Subsidiary of the Parent Guarantor or the Borrower designated as such on Schedule 7.14 from time to time or which the Parent Guarantor or the Borrower has designated in writing to the Administrative Agent to be an Unrestricted Subsidiary pursuant to Section 9.19, until such time as the Parent Guarantor or the Borrower redesignates such Unrestricted Subsidiary as a Restricted Subsidiary in accordance with this Agreement.⁵⁵

“Utilization Percentage” means, as of any day, the fraction expressed as a percentage, the numerator of which is the sum of the Revolving Credit Exposures on such day, and the denominator of which is the total CommitmentsBorrowing Base in effect on such day.⁵⁶

“Viper MLP” has the meaning assigned to such term in Section 9.05(n).⁵⁷

“Write-Down and Conversion Powers” means, with respect to any EEA Resolution Authority, the write-down and conversion powers of such EEA Resolution Authority from time to time under the Bail-In Legislation for the applicable EEA Member Country, which write-down and conversion powers are described in the EU Bail-In Legislation Schedule.⁵⁸

Section 1.03 Types of Loans and Borrowings. For purposes of this Agreement, Loans and Borrowings, respectively, may be classified and referred to by Type (e.g., a “Eurodollar Loan” or a “Eurodollar Borrowing”).

Section 1.04 Terms Generally; Rules of Construction. The definitions of terms herein shall apply equally to the singular and plural forms of the terms defined. Whenever the context may require, any pronoun shall include the corresponding masculine, feminine and neuter forms. The words “include”, “includes” and “including” as used in this Agreement shall be deemed to be followed by the phrase “without limitation”. The word “will” shall be construed to have the same meaning and effect as the word “shall”. Unless the context requires otherwise (a) any definition of or reference to any agreement, instrument or other document herein shall be construed as referring to such agreement, instrument or other document as from time to time amended, supplemented or otherwise modified (subject to any restrictions on such amendments, supplements or modifications set forth in the Loan Documents), (b) any reference herein to any law shall be construed as referring to such law as amended, modified, codified or reenacted, in whole or in part, and in effect from time to time, (c) any reference herein to any Person shall be construed to include such Person’s successors and assigns (subject to the restrictions contained in the Loan Documents), (d) the words “herein”, “hereof” and “hereunder”, and words of similar import, shall be construed to refer to this Agreement in its entirety and not to any particular provision hereof, (e) with respect to the determination of any time period, the word “from” means

30

“from and including” and the word “to” means “to and including” and (f) any reference herein to Articles, Sections, Annexes, Exhibits and Schedules shall be construed to refer to Articles and Sections of, and Annexes, Exhibits and Schedules to, this Agreement. No provision of this Agreement or any other Loan Document shall be interpreted or construed against any Person solely because such Person or its legal representative drafted such provision.

Section 1.05 Accounting Terms and Determinations; GAAP. Unless otherwise specified herein, all accounting terms used herein shall be interpreted, all determinations with respect to accounting matters hereunder shall be made, and all financial statements and certificates and reports as to financial matters required to be furnished to the Administrative Agent or the Lenders hereunder shall be prepared, in accordance with GAAP, applied on a basis consistent with the Financial Statements except for changes in which the Parent Guarantor’s or the Borrower’s independent certified public accountants concur and which are disclosed to Administrative Agent on the next date on which financial statements are required to be delivered to the Lenders pursuant to Section 8.01(a); provided that, unless the Parent Guarantor, the Borrower and the Majority Lenders shall otherwise agree in writing, no such change shall modify or affect the manner in which compliance with the covenants contained herein is computed such that all such computations shall be conducted utilizing financial information presented consistently with prior periods.

Section 1.06 Divisions. For all purposes under the Loan Documents, in connection with any division or plan of division under Delaware law (or any comparable event under a different jurisdiction’s laws): (a) if any asset, right, obligation or liability of any Person becomes the asset, right, obligation or liability of a different Person, then it shall be deemed to have been transferred from the original Person to the subsequent Person, and (b) if any new Person comes into existence, such new Person shall be deemed to have been organized on the first date of its existence by the holders of its Equity Interests at such time.

ARTICLE II

The Credits

Section 2.01 Commitments. Subject to the terms and conditions set forth herein, each Lender agrees to make Loans to the Borrower during the Availability Period in an aggregate principal amount that will not result in (a) such Lender’s Revolving Credit Exposure exceeding such Lender’s Commitment or (b) the total Revolving Credit Exposures exceeding the total Commitments. Within the foregoing limits and subject to the terms and conditions set forth herein, the Borrower may borrow, repay and reborrow the Loans.

Section 2.02 Loans and Borrowings.

(a) Borrowings; Several Obligations. Each Loan shall be made as part of a Borrowing consisting of Loans made by the Lenders ratably in accordance with their respective Commitments. The failure of any Lender to make any Loan required to be made by it shall not relieve any other Lender of its obligations hereunder; provided that the Commitments are several and no Lender shall be responsible for any other Lender’s failure to make Loans as required.

31

(b) Types of Loans. Subject to Section 3.03, each Borrowing shall be comprised entirely of ABR Loans or Eurodollar Loans as the Borrower may request in accordance herewith. Each Lender at its option may make any Eurodollar Loan by causing any domestic or foreign branch or Affiliate of such Lender to make such Loan; provided that any exercise of such option shall not affect the obligation of the Borrower to repay such Loan in accordance with the terms of this Agreement.

(c) Minimum Amounts; Limitation on Number of Borrowings. At the commencement of each Interest Period for any Eurodollar Borrowing, such Borrowing shall be in an aggregate amount that is an integral multiple of $250,000 and not less than $250,000. At the time that each ABR Borrowing is made, such Borrowing shall be in an aggregate amount that is an integral multiple of $250,000 and not less than $250,000; provided that, notwithstanding the foregoing, an ABR Borrowing may be in an aggregate amount that is equal to the entire unused balance of the total Commitments or that is required to finance the reimbursement of an LC Disbursement as contemplated by Section 2.08(e). Borrowings of more than one Type may be outstanding at the same time, provided that there shall not at any time be more than a total of five (5) Eurodollar Borrowings outstanding. Notwithstanding any other provision of this Agreement, the Borrower shall not be entitled to request, or to elect to convert or continue, any Borrowing if the Interest Period requested with respect thereto would end after the Maturity Date.

(d) Notes. The Loans made by each Lender shall be evidenced by a single promissory note of the Borrower in substantially the form of Exhibit A, dated, in the case of (i) any Lender party hereto as of the date of this Agreement, as of the date of this Agreement or (ii) any Lender that becomes a party hereto pursuant to an Assignment and Assumption, as of the effective date of the Assignment and Assumption, payable to such Lender in a principal amount equal to its Maximum Credit Amount as in effect on such date, and otherwise duly completed. In the event that any Lender’s Maximum Credit Amount increases or decreases for any reason (whether pursuant to Section 2.06, Section 12.04(b) or otherwise), the Borrower shall deliver or cause to be delivered on the effective date of such increase or decrease, a new Note payable to such Lender in a principal amount equal to its Maximum Credit Amount after giving effect to such increase or decrease, and otherwise duly completed. The date, amount, Type, interest rate and, if applicable, Interest Period of each Loan made by each Lender, and all payments made on account of the principal thereof, shall be recorded by such Lender on its books for its Note, and, prior to any transfer, may be endorsed by such Lender on a schedule attached to such Note or any continuation thereof or on any separate record maintained by such Lender. Failure to make any such notation or to attach a schedule shall not affect any Lender’s or the Borrower’s rights or obligations in respect of such Loans or affect the validity of such transfer by any Lender of its Note.

(e) Loans and Borrowings under the Existing Credit Agreement. On the Effective Date:

(i) the Borrower shall pay all accrued and unpaid commitment fees, break funding fees under Section 5.02 and all other fees that are outstanding under the Existing Credit Agreement for the account of each “Lender” under the Existing Credit Agreement;

32

(ii) each “ABR Loan” and “Eurodollar Loan” outstanding under the Existing Credit Agreement shall be deemed to be continued as existing Loans under this Agreement and not as a novation;

(iii) any letters of credit outstanding under the Existing Credit Agreement shall be deemed issued under this Agreement; and

(iv) the Existing Credit Agreement and the commitments thereunder shall be superseded by this Agreement.

It is the intent of the parties hereto that this Agreement not constitute a novation of the obligations and liabilities existing under the Existing Credit Agreement or evidence repayment of any such obligations and liabilities and that this Agreement amend and restate in its entirety the Existing Credit Agreement and re-evidence the obligations of the Borrower outstanding thereunder. To the extent not amended and restated as of the Effective Date, the Loan Documents executed in connection with the Existing Credit Agreement and in effect prior to the Effective Date (the “Existing Loan Documents”) shall continue in full force and effect, are hereby ratified, reaffirmed and confirmed in all respects, and shall, for the avoidance of doubt, constitute “Loan Documents” under this Agreement. The terms of the Loan Documents that correspond to the Existing Loan Documents that have been amended and restated as of the Effective Date shall govern for any period occurring on or after the Effective Date, and the terms of such Existing Loan Documents prior to their amendment and restatement shall govern for any period beginning before the Effective Date and ending on the day immediately preceding the Effective Date. In furtherance of the foregoing, (i) each reference in any Loan Document to the “Credit Agreement”, any other Loan Document that is being amended and restated as of the Effective Date, “thereunder”, “thereof” or words of like import, is hereby amended, mutatis mutandis, as applicable in the context, to be a reference to, and shall thereafter mean, this Agreement or such other amended and restated Loan Document, as applicable in the context (as each may be amended, modified or supplemented and in effect from time to time) and (ii) the definition of any term defined in any Loan Document by reference to the terms defined in the “Credit Agreement” or any other Loan Document that is being amended and restated as of the Effective Date is hereby amended to be defined by reference to the defined term in this Agreement or such other amended and restated Loan Document, as applicable (as each may be amended, modified or supplemented and in effect from time to time).

Section 2.03 Requests for Borrowings. To request a Borrowing, the Borrower shall notify the Administrative Agent of such request by telephone (a) in the case of a Eurodollar Borrowing, not later than 12:00 noon, Houston, Texas time, three Business Days before the date of the proposed Borrowing or (b) in the case of an ABR Borrowing, not later than 11:00 A.M., Houston, Texas time, on the Business Day of the proposed Borrowing; provided that no such notice shall be required for any deemed request of an ABR Borrowing to finance the reimbursement of an LC Disbursement as provided in Section 2.08(e). Each such telephonic Borrowing Request shall be irrevocable and shall be confirmed promptly by hand delivery, electronic communication or telecopy to the Administrative Agent of a written Borrowing Request in substantially the form of Exhibit B and signed by the Parent Guarantor and the Borrower. Each such telephonic and written Borrowing Request shall specify the following information in compliance with Section 2.02:

33

(i) the aggregate amount of the requested Borrowing;

(ii) the date of such Borrowing, which shall be a Business Day;

(iii) whether such Borrowing is to be an ABR Borrowing or a Eurodollar Borrowing;

(iv) in the case of a Eurodollar Borrowing, the initial Interest Period to be applicable thereto, which shall be a period contemplated by the definition of the term “Interest Period”;

(v) the amount of the then effective Borrowing Base, the Aggregate Elected Commitment Amount and the current total Revolving Credit Exposures (without regard to the requested Borrowing) and the pro forma total Revolving Credit Exposures (giving effect to the requested Borrowing);⁵⁹ and

(vi) the location and number of the Borrower’s account to which funds are to be disbursed, which shall comply with the requirements of Section 2.05.⁶⁰

If no election as to the Type of Borrowing is specified, then the requested Borrowing shall be an ABR Borrowing. If no Interest Period is specified with respect to any requested Eurodollar Borrowing, then the Borrower shall be deemed to have selected an Interest Period of one month’s duration. Each Borrowing Request shall constitute a representation that the amount of the requested Borrowing shall not cause the total Revolving Credit Exposures to exceed the total Commitments (i.e., the least of the Aggregate Maximum Credit Amounts, the Aggregate Elected Commitment Amount and the then effective Borrowing Base).⁶¹

Promptly following receipt of a Borrowing Request in accordance with this Section 2.03, the Administrative Agent shall advise each Lender of the details thereof and of the amount of such Lender’s Loan to be made as part of the requested Borrowing.

Section 2.04 Interest Elections.

(a) Conversion and Continuance. Each Borrowing initially shall be of the Type specified in the applicable Borrowing Request and, in the case of a Eurodollar Borrowing, shall have an initial Interest Period as specified in such Borrowing Request. Thereafter, the Borrower may elect to convert such Borrowing to a different Type or to continue such Borrowing and, in the case of a Eurodollar Borrowing, may elect Interest Periods therefor, all as provided in this Section 2.04. The Borrower may elect different options with respect to different portions of the affected Borrowing, in which case each such portion shall be allocated ratably among the Lenders holding the Loans comprising such Borrowing, and the Loans comprising each such portion shall be considered a separate Borrowing.

34

(b) Interest Election Requests. To make an election pursuant to this Section 2.04, the Borrower shall notify the Administrative Agent of such election by telephone by the time that a Borrowing Request would be required under Section 2.03 if the Borrower was requesting a Borrowing of the Type resulting from such election to be made on the effective date of such election. Each such telephonic Interest Election Request shall be irrevocable and shall be confirmed promptly by hand delivery, electronic communication or telecopy to the Administrative Agent of a written Interest Election Request in substantially the form of Exhibit C and signed by the Parent Guarantor and the Borrower.

(c) Information in Interest Election Requests. Each telephonic and written Interest Election Request shall specify the following information in compliance with Section 2.02:

(i) the Borrowing to which such Interest Election Request applies and, if different options are being elected with respect to different portions thereof, the portions thereof to be allocated to each resulting Borrowing (in which case the information to be specified pursuant to Section 2.04(c)(iii) and (iv) shall be specified for each resulting Borrowing);

(ii) the effective date of the election made pursuant to such Interest Election Request, which shall be a Business Day;

(iii) whether the resulting Borrowing is to be an ABR Borrowing or a Eurodollar Borrowing; and

(iv) if the resulting Borrowing is a Eurodollar Borrowing, the Interest Period to be applicable thereto after giving effect to such election, which shall be a period contemplated by the definition of the term “Interest Period”.

If any such Interest Election Request requests a Eurodollar Borrowing but does not specify an Interest Period, then the Borrower shall be deemed to have selected an Interest Period of one month’s duration.

(d) Notice to Lenders by the Administrative Agent. Promptly following receipt of an Interest Election Request, the Administrative Agent shall advise each Lender of the details thereof and of such Lender’s portion of each resulting Borrowing.

(e) Effect of Failure to Deliver Timely Interest Election Request and Events of Default and Borrowing Base Deficiencies on Interest Election. If the Borrower fails to deliver a timely Interest Election Request with respect to a Eurodollar Borrowing prior to the end of the Interest Period applicable thereto, then, unless such Borrowing is repaid as provided herein, at the end of such Interest Period such Borrowing shall be converted to a Eurodollar Borrowing with an Interest Period of one month’s duration. Notwithstanding any contrary provision hereof, if an Event of Default or a Borrowing Base Deficiency has occurred and is continuing: (i) no outstanding Borrowing may be converted to or continued as a Eurodollar Borrowing (and any Interest Election Request that requests the conversion of any Borrowing to, or continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective) and (ii) unless repaid, each Eurodollar Borrowing shall be converted to an ABR Borrowing at the end of the Interest Period applicable thereto.

35

Section 2.05 Funding of Borrowings.

(a) Funding by Lenders. Each Lender shall make each Loan to be made by it hereunder on the proposed date thereof by wire transfer of immediately available funds by 1:00 p.m., Houston, Texas time, to the account of the Administrative Agent most recently designated by it for such purpose by notice to the Lenders. The Administrative Agent will make such Loans available to the Borrower by promptly crediting the amounts so received, in like funds, to an account of the Borrower maintained with the Administrative Agent in Houston, Texas and designated by the Borrower in the applicable Borrowing Request; provided that ABR Loans made to finance the reimbursement of an LC Disbursement as provided in Section 2.08(e) shall be remitted by the Administrative Agent to the Issuing Bank. Nothing herein shall be deemed to obligate any Lender to obtain the funds for its Loan in any particular place or manner or to constitute a representation by any Lender that it has obtained or will obtain the funds for its Loan in any particular place or manner.

(b) Presumption of Funding by the Lenders. Unless the Administrative Agent shall have received notice from a Lender prior to the proposed date of any Borrowing that such Lender will not make available to the Administrative Agent such Lender’s share of such Borrowing, the Administrative Agent may assume that such Lender has made such share available on such date in accordance with Section 2.05(a) and may, in reliance upon such assumption, make available to the Borrower a corresponding amount. In such event, if a Lender has not in fact made its share of the applicable Borrowing available to the Administrative Agent, then the applicable Lender and the Borrower severally agree to pay to the Administrative Agent forthwith on demand such corresponding amount with interest thereon, for each day from and including the date such amount is made available to the Borrower to but excluding the date of payment to the Administrative Agent, at (i) in the case of such Lender, the greater of the Federal Funds Effective Rate and a rate determined by the Administrative Agent in accordance with banking industry rules on interbank compensation or (ii) in the case of the Borrower, the interest rate applicable to ABR Loans. If such Lender pays such amount to the Administrative Agent, then such amount shall constitute such Lender’s Loan included in such Borrowing.

Section 2.06 Termination and Reduction of Aggregate Maximum Credit Amounts.

(a) Scheduled Termination of Commitments. Unless previously terminated, the Commitments shall terminate on the Maturity Date. If at any time the Aggregate Maximum Credit Amounts or the Borrowing Base is terminated or reduced to zero, then the Commitments shall terminate on the effective date of such termination or reduction.

36

(b) Optional Termination and Reduction of Aggregate Credit Amounts.

(i) The Borrower may at any time terminate, or from time to time reduce, the Aggregate Maximum Credit Amounts; provided that (A) each reduction of the Aggregate Maximum Credit Amounts shall be in an amount that is an integral multiple of $1,000,000 and not less than $1,000,000 and (B) the Borrower shall not terminate or reduce the Aggregate Maximum Credit Amounts if, after giving effect to any concurrent prepayment of the Loans in accordance with Section 3.04(c), the total Revolving Credit Exposures would exceed the total Commitments.

(ii) The Borrower shall notify the Administrative Agent of any election to terminate or reduce the Aggregate Maximum Credit Amounts under Section 2.06(b)(i) at least three Business Days prior to the effective date of such termination or reduction, specifying such election and the effective date thereof. Promptly following receipt of any notice, the Administrative Agent shall advise the Lenders of the contents thereof. Each notice delivered by the Borrower pursuant to this Section 2.06(b)(ii) shall be irrevocable. Any termination or reduction of the Aggregate Maximum Credit Amounts shall be permanent and may not be reinstated. Each reduction of the Aggregate Maximum Credit Amounts shall be made ratably among the Lenders in accordance with each Lender’s Applicable Percentage.

Section 2.07 Borrowing Base.

(a) Initial Borrowing Base. For the period from and including the Effective Date to but excluding the next Redetermination Date, the amount ofOn the Ninth Amendment Closing Date the Borrowing Base shall be $225,000,000is $2.65 billion. Notwithstanding the foregoing, the Borrowing Base may be subject to further adjustments from time to time pursuant to Section 2.07(e), Section 2.07(f), Section 8.13(c), Section 9.05(n)(iii), or Section 9.12(d).⁶²

(b) Scheduled and Interim Redeterminations. The Borrowing Base shall be redetermined (i) annually if as of the most recent quarter for which financial statements are available immediately prior to September 30th of any year, the ratio of Total Debt to EBITDAX as determined in accordance with Section 9.01(a) is 3.0 to 1.0 or less and (ii) semi-annually if the ratio of Total Debt to EBITDAX as determined in accordance with Section 9.01(a) is greater than 3.0 to 1.0, or, notwithstanding clause (i), if the Borrower elects semi-annual redetermination for such year by written notice to the Administrative Agent no later than September 30th of any year (such semi-annual redeterminations to continue until the Borrower notifies the Lender it wishes to revert to annual redeterminations as provided in clause (i)), each in accordance with this Section 2.07 (a “Scheduled Redetermination”), and, subject to Section 2.07(d), such redetermined Borrowing Base shall become effective and applicable to the Borrower, the Agents, the Issuing Bank and the Lenders on May 1st of each year beginning May 1, 20182019 for any annual redetermination and on May 1st and November 1st of each year for any semi-annual redetermination. In addition, the Borrower may, by notifying the Administrative Agent thereof, and the Administrative Agent may, at the direction of the Majority Lenders, by notifying the Borrower thereof, two times during any twelve month period, each elect to cause the Borrowing Base to be redetermined between Scheduled Redeterminations (an “Interim Redetermination”) in accordance with this Section 2.07.⁶³

37

(c) Scheduled and Interim Redetermination Procedure.

(i) Each Scheduled Redetermination and each Interim Redetermination shall be effectuated as follows: Upon receipt by the Administrative Agent of (A) the Reserve Report and the certificate required to be delivered by the Borrower to the Administrative Agent, in the case of a Scheduled Redetermination, pursuant to Section 8.12(a) and (c), and, in the case of an Interim Redetermination, pursuant to Section 8.12(b) and (c), and (B) such other reports, data and supplemental information, including, without limitation, the information provided pursuant to Section 8.12(c), as may, from time to time, be reasonably requested by the Majority Lenders (the Reserve Report, such certificate and such other reports, data and supplemental information being the “Engineering Reports”), the Administrative Agent shall evaluate the information contained in the Engineering Reports and shall, in good faith, propose a new Borrowing Base (the “Proposed Borrowing Base”) based upon such information and such other information (including, without limitation, the status of title information with respect to the Oil and Gas Properties as described in the Engineering Reports and the existence of any other Debt) as the Administrative Agent deems appropriate in its sole discretion and consistent with its normal oil and gas lending criteria as it exists at the particular time. In no event shall the Proposed Borrowing Base exceed the Aggregate Maximum Credit Amounts.

(ii) The Administrative Agent shall notify the Borrower and the Lenders of the Proposed Borrowing Base (the “Proposed Borrowing Base Notice”):

(A) in the case of a Scheduled Redetermination (I) if the Administrative Agent shall have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then on or before (1) April 15th for an annual redetermination or (2) April 15th and October 15th for each semi- annual redetermination, of such year following the date of delivery or (II) if the Administrative Agent shall not have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then promptly after the Administrative Agent has received complete Engineering Reports from the Borrower and has had a reasonable opportunity to determine the Proposed Borrowing Base in accordance with Section 2.07(c)(i); and⁶⁴

(B) in the case of an Interim Redetermination, promptly, and in any event, within fifteen (15) days after the Administrative Agent has received the required Engineering Reports.

38

(iii) Any Proposed Borrowing Base that would increase the Borrowing Base then in effect must be approved or deemed to have been approved by all of the Lenders as provided in this Section 2.07(c)(iii); and any Proposed Borrowing Base that would decrease or maintain the Borrowing Base then in effect must be approved or be deemed to have been approved by the Required Lenders as provided in this Section 2.07(c)(iii). Upon receipt of the Proposed Borrowing Base Notice, each Lender shall have fifteen (15) days to agree with the Proposed Borrowing Base or disagree with the Proposed Borrowing Base by proposing an alternate Borrowing Base. If at the end of such fifteen (15) days, any Lender has not communicated its approval or disapproval in writing to the Administrative Agent, such silence shall be deemed to be an approval of the Proposed Borrowing Base. If, at the end of such 15-day period, all of the Lenders, in the case of a Proposed Borrowing Base that would increase the Borrowing Base then in effect, or the Required Lenders, in the case of a Proposed Borrowing Base that would decrease or maintain the Borrowing Base then in effect, have approved or deemed to have approved, as aforesaid, then the Proposed Borrowing Base shall become the new Borrowing Base, effective on the date specified in Section 2.07(d). If, however, at the end of such 15-day period, all of the Lenders or the Required Lenders, as applicable, have not approved or deemed to have approved, as aforesaid, then the Administrative Agent shall poll the Lenders to ascertain the highest Borrowing Base then acceptable to the number of Lenders sufficient to constitute the Required Lenders for purposes of this Section 2.07 and, so long as such amount does not increase the Borrowing Base then in effect, such amount shall become the new Borrowing Base effective on the date specified in Section 2.07(d).

(d) Effectiveness of a Redetermined Borrowing Base. After a redetermined Borrowing Base is approved or is deemed to have been approved by all of the Lenders or the Majority Lenders, as applicable, pursuant to Section 2.07(c)(iii), the Administrative Agent shall notify the Borrower and the Lenders of the amount of the redetermined Borrowing Base (the “New Borrowing Base Notice”), and such amount shall become the new Borrowing Base, effective and applicable to the Borrower, the Administrative Agent, the Issuing Bank and the Lenders:

(i) in the case of a Scheduled Redetermination, (A) if the Administrative Agent shall have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then on the May 1st or November 1st, as applicable, following such notice, or (B) if the Administrative Agent shall not have received the Engineering Reports required to be delivered by the Borrower pursuant to Section 8.12(a) and (c) in a timely and complete manner, then on the Business Day next succeeding delivery of such notice; and⁶⁵

(ii) in the case of an Interim Redetermination, on the Business Day next succeeding delivery of such notice.

Such amount shall then become the Borrowing Base until the next Scheduled Redetermination Date, the next Interim Redetermination Date or the next adjustment to the Borrowing Base under Section 2.07(e), Section 2.07(f), Section 8.13(c), Section 9.05(n)(iii), or Section 9.12, whichever occurs first. Notwithstanding the foregoing, no Scheduled Redetermination or Interim Redetermination shall become effective until the New Borrowing Base Notice related thereto is received by the Borrower.⁶⁶

39

(e) Potential Adjustment of Borrowing Base Upon Termination of Swap Agreements. If the Borrower or any Restricted Subsidiary shall terminate or create any off- setting positions which have the economic effect of terminating any Swap Agreements (regardless of how evidenced) upon which the Lenders relied in determining the Borrowing Base, and which would affect the Borrowing Base (after giving effect to any replacement Swap Agreements), then, to the extent required by the Majority Lenders within 10 Business Days of such termination, the Borrowing Base shall be adjusted in an amount determined by the Majority Lenders equal to the economic value of such Swap Agreements.⁶⁷

(f) Reduction of Borrowing Base Upon Issuance of Senior Unsecured Notes. Notwithstanding anything to the contrary contained herein, upon each initial issuance of any Senior Unsecured Notes (which, for the avoidance of doubt, excludes issuances of Senior Unsecured Notes in an exchange offer or in a refinancing of Senior Unsecured Notes) in accordance with Section 9.02(g)(ii), the Borrowing Base then in effect shall be reduced by an amount equal to the product of 0.25 multiplied by the stated principal amount of such Senior Unsecured Notes (without regard to any initial issue discount), and the Borrowing Base as so reduced shall become the new Borrowing Base immediately upon the date of such issuance, effective and applicable to the Borrower, the Issuing Bank and the Lenders on such date until the next redetermination or modification thereof hereunder.⁶⁸

Section 2.07A Optional Modifications of Aggregate Elected Commitment Amount.⁶⁹

(a) Establishment of Aggregate Elected Commitment Amount. Within the three Business Day period following its receipt of the New Borrowing Base Notice as a result of a Scheduled Redetermination or Interim Redetermination, as applicable, the Borrower shall provide written notice to the Administrative Agent and the Lenders that specifies for the period from the effective date of the New Borrowing Base Notice until the earliest of the next succeeding Scheduled Redetermination Date or Interim Redetermination Date the amount it requests that the Lenders provide as the Aggregate Elected Commitment Amount in accordance with the following procedure:

40

(i) if the amount of the Aggregate Elected Commitment Amount is unchanged, then each Lender’s Elected Commitment Amount will remain unchanged;

(ii) if the amount of the Aggregate Elected Commitment Amount is to decrease, then each Lender’s Elected Commitment Amount will be decreased ratably in accordance with its Applicable Percentage of the reduction; and

(iii) if the amount of the Aggregate Elected Commitment Amount is to increase, then any increase will be effected in accordance with Section 2.07A(b).

    (b) Optional Increase of Aggregate Elected Commitment Amount.

(i) In addition to any increase in the Aggregate Elected Commitment Amount pursuant to Section 2.07A(a), and subject to the conditions set forth in Section 2.07A(b)(ii), the Borrower may increase the Aggregate Elected Commitment Amount then in effect by increasing the Elected Commitment Amount of any one or more Lenders and/or by causing a Person that is reasonably acceptable to the Administrative Agent that at such time is not a Lender (it being agreed that any Affiliate of a Lender shall be deemed acceptable to the Administrative Agent) to become a Lender (an “Additional Lender”).

(ii) Any increase in the Aggregate Elected Commitment Amount shall be subject to the following additional conditions:

(A) such increase shall not (I) result in the Aggregate Elected Commitment Amount or the total Revolving Credit Exposure exceeding the Borrowing Base then in effect and (II) if not in connection with any Scheduled Redetermination or Interim Redetermination, be less than $25,000,000 unless such increase is equal to the remaining difference between the Aggregate Elected Commitment Amount and the Borrowing Base then in effect;

(B) following any Scheduled Redetermination Date or Interim Redetermination Date, the Borrower may not increase the Aggregate Elected Commitment Amount more than once before the next Scheduled Redetermination Date or Interim Redetermination Date, as applicable;

(C) no Default shall have occurred and be continuing on the effective date of such increase;

41

(D) on the effective date of such increase, if any Eurodollar Borrowings are outstanding, then (I) the effective date of such increase shall be the last day of the Interest Period in respect of such Eurodollar Borrowings, (II) the Lenders shall each take a ratable share of such increase or (III) the Borrower shall pay compensation required by Section 5.02;

(E) no Lender’s Elected Commitment Amount may be increased without the consent of such Lender;

(F) if the Borrower elects to increase the Aggregate Elected Commitment Amount by increasing the Elected Commitment Amount of a Lender, then (I) the Borrower and such Lender shall execute and deliver to the Administrative Agent an agreement substantially in the form of Exhibit H-1 (an “Elected Commitment Amount Increase Agreement”); and (II) the Borrower shall (1) if requested by such Lender, deliver a Note payable to such Lender in a principal amount equal to its Maximum Credit Amount, and otherwise duly completed (if its Maximum Credit Amount has also increased) and (2) pay any fees as may have been agreed to between the Borrower, such Lender and/or the Administrative Agent; and

(G) if the Borrower elects to increase the Aggregate Elected Commitment Amount by causing an Additional Lender to become a party to this Agreement, then (I) the Borrower and such Additional Lender shall execute and deliver to the Administrative Agent an agreement substantially in the form of Exhibit H-2 (an “Additional Lender Agreement”), together with an Administrative Questionnaire and a processing and recordation fee of $3,500; and (II) the Borrower shall (1) if requested by such Lender, deliver a Note payable to such Additional Lender in a principal amount equal to its Maximum Credit Amount, and otherwise duly completed and (2) pay any fees as may have been agreed to between the Borrower, the Additional Lender and/or the Administrative Agent.

(iii) Subject to acceptance and recording thereof pursuant to Section 2.07A(b)(iv), from and after the effective date specified in the Elected Commitment Amount Increase Agreement or the Additional Lender Agreement: (A) the amount of the Aggregate Elected Commitment Amount shall be increased as set forth therein, and (B) in the case of an Additional Lender Agreement, any Additional Lender party thereto shall be a party to this Agreement and have the rights and obligations of a Lender under this Agreement and the other Loan Documents. In addition, the Lender or the Additional Lender, as applicable, shall purchase a pro rata portion of the outstanding Loans (and participation interests in Letters of Credit) of each of the other Lenders (and such Lenders hereby agree to sell and to take all such further action to effectuate such sale) such that each Lender (including any Additional Lender, if applicable) shall hold its Applicable Percentage of the outstanding Loans (and participation interests in Letters of Credit) after giving effect to the increase in the Aggregate Elected Commitment Amount.

42

(iv) Upon its receipt of a duly completed Elected Commitment Amount Increase Agreement or an Additional Lender Agreement, executed by the Borrower and the Lender or by the Borrower and the Additional Lender party thereto, as applicable, the processing and recording fee referred to in Section 2.07A(b)(ii) and the Administrative Questionnaire referred to in Section 2.07A(b)(ii), if applicable, the Administrative Agent shall accept such Elected Commitment Amount Increase Agreement or Additional Lender Agreement and record the information contained therein in the Register required to be maintained by the Administrative Agent pursuant to Section 12.04(b)(iv). No increase in the Aggregate Elected Commitment Amount shall be effective for purposes of this Agreement unless it has been recorded in the Register as provided in this Section 2.07A(b)(iv).

(v) Upon any increase in the Aggregate Elected Commitment Amount pursuant to this Section 2.07A(b), (A) each Lender’s Maximum Credit Amount shall be automatically deemed amended to the extent necessary so that each such Lender’s percentage of the Aggregate Maximum Credit Amounts equals such Lender’s Applicable Percentage, in each case after giving effect to such increase, and (B) Annex I to this Agreement shall be deemed amended to reflect the Maximum Credit Amount and Elected Commitment Amount of each Lender (including any Additional Lender) as thereby amended and any resulting changes in the Lenders’ Applicable Percentages.

(vi) In the event that any Lender’s Maximum Credit Amount increases or decreases as a result of the foregoing clause (v), if requested, the Borrower shall deliver or cause to be delivered, to the extent such Lender is then holding a Note, on the effective date of such increase or decrease, a new Note payable to such Lender in a principal amount equal to its Maximum Credit Amount after giving effect to such increase or decrease, and otherwise duly completed.

(vii) The Aggregate Elected Commitment Amount shall not exceed 75% of the then effective Borrowing Base at any time the Borrowing Base is only being redetermined annually.

    (c) Optional Reduction of Aggregate Elected Commitment Amount.

(i) The Borrower may at any time reduce the Aggregate Elected Commitment Amount; provided that (A) each reduction shall be in an amount that is an integral multiple of $1,000,000 and not less than $1,000,000 and (B) the Borrower shall not terminate or reduce the Aggregate Elected Commitment Amount unless, after giving effect to any concurrent prepayment of the Loans, the total Revolving Credit Exposures would not exceed the total Commitments.

43

(ii) The Borrower shall notify the Administrative Agent of any election to reduce the Aggregate Elected Commitment Amount under Section 2.07A(c)(i) at least three Business Days prior to the effective date of such reduction, specifying such election and the effective date thereof. Promptly following receipt of any notice, the Administrative Agent shall advise the Lenders of the contents thereof. Each notice delivered by the Borrower pursuant to this Section 2.07A(c)(ii) shall be irrevocable. Each reduction of the Aggregate Elected Commitment Amount shall be made ratably among the Lenders in accordance with each Lender’s Applicable Percentage.

Section 2.08 Letters of Credit.

(a) General. Subject to the terms and conditions set forth herein, the Borrower may request the issuance of dollar denominated Letters of Credit for its own account or for the account of any of its, or the Parent Guarantor’s, Restricted Subsidiaries, in a form reasonably acceptable to the Administrative Agent and the Issuing Bank, at any time and from time to time during the Availability Period; provided that the Borrower may not request the issuance, amendment, renewal or extension of Letters of Credit hereunder if a Borrowing Base Deficiency exists at such time or would exist as a result thereof. In the event of any inconsistency between the terms and conditions of this Agreement and the terms and conditions of any form of letter of credit application or other agreement submitted by the Borrower to, or entered into by the Borrower with, the Issuing Bank relating to any Letter of Credit, the terms and conditions of this Agreement shall control. Notwithstanding anything to the contrary contained in this Agreement, Section 2.08 shall be subject to the terms and conditions of Section 2.09 and Section 2.10.⁷⁰

(b) Notice of Issuance, Amendment, Renewal, Extension; Certain Conditions. To request the issuance of a Letter of Credit (or the amendment, renewal or extension of an outstanding Letter of Credit), the Borrower shall hand deliver or telecopy (or transmit by electronic communication, if arrangements for doing so have been approved by the Issuing Bank) to the Issuing Bank and the Administrative Agent (not less than five (5) Business Days in advance of the requested date of issuance, amendment, renewal or extension) a notice:

(i) requesting the issuance of a Letter of Credit or identifying the Letter of Credit to be amended, renewed or extended;

(ii) specifying the date of issuance, amendment, renewal or extension (which shall be a Business Day);

(iii) specifying the date on which such Letter of Credit is to expire (which shall comply with Section 2.08(c));

(iv) specifying the amount of such Letter of Credit;

(v) specifying the name and address of the beneficiary thereof and such other information as shall be necessary to prepare, amend, renew or extend such Letter of Credit; and other information as shall be necessary to prepare, amend, renew or extend such Letter of Credit; and

44

(vi) specifying the amount of the then effective Borrowing Base and whether a Borrowing Base Deficiency exists at such time, the current total Revolving Credit Exposures (without regard to the requested Letter of Credit or the requested amendment, renewal or extension of an outstanding Letter of Credit) and the pro forma total Revolving Credit Exposures (giving effect to the requested Letter of Credit or the requested amendment, renewal or extension of an outstanding Letter of Credit).

Each such notice shall constitute a representation that after giving effect to the requested issuance, amendment, renewal or extension, as applicable, (i) the LC Exposure shall not exceed the LC Commitment and (ii) the total Revolving Credit Exposures shall not exceed the total Commitments (i.e. the least of the Aggregate Maximum Credit Amounts, the Aggregate Elected Commitment Amounts and the then effective Borrowing Base).⁷¹

If requested by the Issuing Bank, the Borrower also shall submit a letter of credit application on the Issuing Bank’s standard form in connection with any request for a Letter of Credit.

(c) Expiration Date. Each Letter of Credit shall expire at or prior to the close of business on the earlier of (i) the date fifteen (15) months after the date of the issuance of such Letter of Credit (or, in the case of any renewal or extension thereof, fifteen (15) months after such renewal or extension) and (ii) the date that is five Business Days prior to the Maturity Date; provided, however, that any Letter of Credit may provide for the renewal thereof for additional periods, each of which shall not exceed fifteen (15) months (which shall in no event extend beyond the date referred to in clause (ii) above).

(d) Participations. By the issuance of a Letter of Credit (or an amendment to a Letter of Credit increasing the amount thereof) and without any further action on the part of the Issuing Bank or the Lenders, the Issuing Bank hereby grants to each Lender, and each Lender hereby acquires from the Issuing Bank, a participation in such Letter of Credit equal to such Lender’s Applicable Percentage of the aggregate amount available to be drawn under such Letter of Credit. In consideration and in furtherance of the foregoing, each Lender hereby absolutely and unconditionally agrees to pay to the Administrative Agent, for the account of the Issuing Bank, such Lender’s Applicable Percentage of each LC Disbursement made by the Issuing Bank and not reimbursed by the Borrower on the date due as provided in Section 2.08(e), or of any reimbursement payment required to be refunded to the Borrower for any reason. Each Lender acknowledges and agrees that its obligation to acquire participations pursuant to this Section 2.08(d) in respect of Letters of Credit is absolute and unconditional and shall not be affected by any circumstance whatsoever, including any amendment, renewal or extension of any Letter of Credit or the occurrence and continuance of a Default, the existence of a Borrowing Base Deficiency or reduction or termination of the Commitments, and that each such payment shall be made without any offset, abatement, withholding or reduction whatsoever.

45

(e) Reimbursement. If the Issuing Bank shall make any LC Disbursement in respect of a Letter of Credit, the Borrower shall reimburse such LC Disbursement by paying to the Administrative Agent an amount equal to such LC Disbursement not later than 12:00 noon, Houston, Texas time, on the date that such LC Disbursement is made, if the Borrower shall have received notice of such LC Disbursement prior to 10:00 a.m., Houston, Texas time, on such date, or, if such notice has not been received by the Borrower prior to such time on such date, then not later than 12:00 noon, Houston, Texas time, on (i) the Business Day that the Borrower receives such notice, if such notice is received prior to 10:00 a.m., Houston, Texas time, on the day of receipt, or (ii) the Business Day immediately following the day that the Borrower receives such notice, if such notice is not received prior to such time on the day of receipt; provided that if such LC Disbursement is not less than $1,000,000, the Borrower shall, subject to the conditions to Borrowing set forth herein, be deemed to have requested, and the Borrower does hereby request under such circumstances, that such payment be financed with an ABR Borrowing in an equivalent amount and, to the extent so financed, the Borrower’s obligation to make such payment shall be discharged and replaced by the resulting ABR Borrowing. If the Borrower fails to make such payment when due, the Administrative Agent shall notify each Lender of the applicable LC Disbursement, the payment then due from the Borrower in respect thereof and such Lender’s Applicable Percentage thereof. Promptly following receipt of such notice, each Lender shall pay to the Administrative Agent its Applicable Percentage of the payment then due from the Borrower, in the same manner as provided in Section 2.05 with respect to Loans made by such Lender (and Section 2.05 shall apply, mutatis mutandis, to the payment obligations of the Lenders), and the Administrative Agent shall promptly pay to the Issuing Bank the amounts so received by it from the Lenders. Promptly following receipt by the Administrative Agent of any payment from the Borrower pursuant to this Section 2.08(e), the Administrative Agent shall distribute such payment to the Issuing Bank or, to the extent that Lenders have made payments pursuant to this Section 2.08(e) to reimburse the Issuing Bank, then to such Lenders and the Issuing Bank as their interests may appear. Any payment made by a Lender pursuant to this Section 2.08(e) to reimburse the Issuing Bank for any LC Disbursement (other than the funding of ABR Loans as contemplated above) shall not constitute a Loan and shall not relieve the Borrower of its obligation to reimburse such LC Disbursement.

(f) Obligations Absolute. The Borrower’s obligation to reimburse LC Disbursements as provided in Section 2.08(e) shall be absolute, unconditional and irrevocable, and shall be performed strictly in accordance with the terms of this Agreement under any and all circumstances whatsoever and irrespective of (i) any lack of validity or enforceability of any Letter of Credit, any Letter of Credit Agreement or this Agreement, or any term or provision therein, (ii) any draft or other document presented under a Letter of Credit proving to be forged, fraudulent or invalid in any respect or any statement therein being untrue or inaccurate in any respect, (iii) payment by the Issuing Bank under a Letter of Credit against presentation of a draft or other document that does not comply with the terms of such Letter of Credit or any Letter of Credit Agreement, or (iv) any other event or circumstance whatsoever, whether or not similar to any of the foregoing, that might, but for the provisions of this Section 2.08(f), constitute a legal or equitable discharge of, or provide a right of setoff against, the Borrower’s obligations hereunder.

46

Neither the Administrative Agent, the Lenders nor the Issuing Bank, nor any of their Related Parties shall have any liability or responsibility by reason of or in connection with the issuance or transfer of any Letter of Credit or any payment or failure to make any payment thereunder (irrespective of any of the circumstances referred to in the preceding sentence), or any error, omission, interruption, loss or delay in transmission or delivery of any draft, notice or other communication under or relating to any Letter of Credit (including any document required to make a drawing thereunder), any error in interpretation of technical terms or any consequence arising from causes beyond the control of the Issuing Bank; provided that the foregoing shall not be construed to excuse the Issuing Bank from liability to the Borrower to the extent of any direct damages (as opposed to consequential damages, claims in respect of which are hereby waived by the Borrower to the extent permitted by applicable law) suffered by the Borrower that are caused by the Issuing Bank’s failure to exercise care when determining whether drafts and other documents presented under a Letter of Credit comply with the terms thereof. The parties hereto expressly agree that, in the absence of gross negligence or willful misconduct on the part of the Issuing Bank (as finally determined by a court of competent jurisdiction), the Issuing Bank shall be deemed to have exercised all requisite care in each such determination. In furtherance of the foregoing and without limiting the generality thereof, the parties agree that, with respect to documents presented which appear on their face to be in substantial compliance with the terms of a Letter of Credit, the Issuing Bank may, in its sole discretion, either accept and make payment upon such documents without responsibility for further investigation, regardless of any notice or information to the contrary, or refuse to accept and make payment upon such documents if such documents are not in strict compliance with the terms of such Letter of Credit.

(g) Disbursement Procedures. The Issuing Bank shall, promptly following its receipt thereof, examine all documents purporting to represent a demand for payment under a Letter of Credit. The Issuing Bank shall promptly notify the Administrative Agent and the Borrower by telephone (confirmed by telecopy) of such demand for payment and whether the Issuing Bank has made or will make an LC Disbursement thereunder; provided that any failure to give or delay in giving such notice shall not relieve the Borrower of its obligation to reimburse the Issuing Bank and the Lenders with respect to any such LC Disbursement.

(h) Interim Interest. If the Issuing Bank shall make any LC Disbursement, then, until the Borrower shall have reimbursed the Issuing Bank for such LC Disbursement (either with its own funds or a Borrowing under Section 2.08(e)), the unpaid amount thereof shall bear interest, for each day from and including the date such LC Disbursement is made to but excluding the date that the Borrower reimburses such LC Disbursement, at the rate per annum then applicable to ABR Loans. Interest accrued pursuant to this Section 2.08(h) shall be for the account of the Issuing Bank, except that interest accrued on and after the date of payment by any Lender pursuant to Section 2.08(e) to reimburse the Issuing Bank shall be for the account of such Lender to the extent of such payment.

(i) Replacement of the Issuing Bank. The Issuing Bank may be replaced at any time by written agreement among the Borrower, the Administrative Agent, the replaced Issuing Bank and the successor Issuing Bank. The Administrative Agent shall notify the Lenders of any such replacement of the Issuing Bank. At the time any such replacement shall become effective, the Borrower shall pay all unpaid fees accrued for the account of the replaced Issuing

47

Bank pursuant to Section 3.05(b). From and after the effective date of any such replacement, (i) the successor Issuing Bank shall have all the rights and obligations of the Issuing Bank under this Agreement with respect to Letters of Credit to be issued thereafter and (ii) references herein to the term “Issuing Bank” shall be deemed to refer to such successor or to any previous Issuing Bank, or to such successor and all previous Issuing Banks, as the context shall require. After the replacement of the Issuing Bank hereunder, the replaced Issuing Bank shall remain a party hereto and shall continue to have all the rights and obligations of the Issuing Bank under this Agreement with respect to Letters of Credit issued by it prior to such replacement, but shall not be required to issue additional Letters of Credit.

(j) Cash Collateralization. If (i) any Event of Default shall occur and be continuing and the Borrower receives notice from the Administrative Agent or the Majority Lenders demanding the deposit of cash collateral pursuant to this Section 2.08(j), or (ii) the Borrower is required to pay to the Administrative Agent the excess attributable to an LC Exposure in connection with any prepayment pursuant to Section 3.04(c), then the Borrower shall deposit, in an account with the Administrative Agent, in the name of the Administrative Agent and for the benefit of the Lenders, an amount in cash equal to, in the case of an Event of Default, the LC Exposure, and in the case of a payment required by Section 3.04(c), the amount of such excess as provided in Section 3.04(c), as of such date plus any accrued and unpaid interest thereon; provided that the obligation to deposit such cash collateral shall become effective immediately, and such deposit shall become immediately due and payable, without demand or other notice of any kind, upon the occurrence of any Event of Default with respect to the Parent Guarantor, the Borrower or any Restricted Subsidiary described in Section 10.01(h) or Section 10.01(i). The Borrower hereby grants to the Administrative Agent, for the benefit of the Issuing Bank and the Lenders, an exclusive first priority and continuing perfected security interest in and Lien on such account and all cash, checks, drafts, certificates and instruments, if any, from time to time deposited or held in such account, all deposits or wire transfers made thereto, any and all investments purchased with funds deposited in such account, all interest, dividends, cash, instruments, financial assets and other Property from time to time received, receivable or otherwise payable in respect of, or in exchange for, any or all of the foregoing, and all proceeds, products, accessions, rents, profits, income and benefits therefrom, and any substitutions and replacements therefor. The Borrower’s obligation to deposit amounts pursuant to this Section 2.08(j) shall be absolute and unconditional, without regard to whether any beneficiary of any such Letter of Credit has attempted to draw down all or a portion of such amount under the terms of a Letter of Credit, and, to the fullest extent permitted by applicable law, shall not be subject to any defense or be affected by a right of set-off, counterclaim or recoupment which the Parent Guarantor, the Borrower or any Restricted Subsidiaries may now or hereafter have against any such beneficiary, the Issuing Bank, the Administrative Agent, the Lenders or any other Person for any reason whatsoever. Such deposit shall be held as collateral securing the payment and performance of the obligations of the Parent Guarantor, the Borrower and the other Guarantors under this Agreement and the other Loan Documents. The Administrative Agent shall have exclusive dominion and control, including the exclusive right of withdrawal, over such account. Other than any interest earned on the investment of such deposits, which investments, if any, shall be made at the option and sole discretion of the Administrative Agent, but subject to the consent (not to be unreasonably withheld) of the Borrower and at the Borrower’s risk and expense, such deposits shall not bear interest. Interest or profits, if any, on such investments shall accumulate in

48

such account. Moneys in such account shall be applied by the Administrative Agent to reimburse the Issuing Bank for LC Disbursements for which it has not been reimbursed and, to the extent not so applied, shall be held for the satisfaction of the reimbursement obligations of the Borrower for the LC Exposure at such time or, if the maturity of the Loans has been accelerated, be applied to satisfy other obligations of the Parent Guarantor, the Borrower and any Restricted Subsidiary under this Agreement or the other Loan Documents. If the Borrower is required to provide an amount of cash collateral hereunder as a result of the occurrence of an Event of Default, and the Borrower is not otherwise required to pay to the Administrative Agent the excess attributable to an LC Exposure in connection with any prepayment pursuant to Section 3.04(c), then such amount (to the extent not applied as aforesaid) shall be returned to the Borrower within three Business Days after all Events of Default have been cured or waived.⁷²

Section 2.09 Cash Collateral.

(a) At any time that there shall exist a Defaulting Lender, within one Business Day following the written request of the Administrative Agent or the Issuing Bank (with a copy to the Administrative Agent), the Borrower shall Cash Collateralize the Fronting Exposure of the Issuing Bank with respect to such Defaulting Lender (determined after giving effect to Section 2.10(a)(iv) and any Cash Collateral provided by such Defaulting Lender) in an amount not less than the Minimum Collateral Amount. The Borrower may use proceeds of Borrowings for the provision of Cash Collateral (so long as no Borrowing Base Deficiency, Default or Event of Default exists).

(i) Grant of Security Interest. The Borrower, and to the extent provided by any Defaulting Lender, such Defaulting Lender, hereby grants to the Administrative Agent, for the benefit of the Issuing Bank, and agrees to maintain, a first priority security interest in all such Cash Collateral as security for the Defaulting Lender’s obligation to fund participations in respect of LC Exposure, to be applied pursuant to subsection (ii) below. If at any time the Administrative Agent determines that Cash Collateral is subject to any right or claim of any Person other than the Administrative Agent and the Issuing Bank as herein provided, or that the total amount of such Cash Collateral is less than the Minimum Collateral Amount, the Borrower will, within 2 Business Days upon demand by the Administrative Agent, pay or provide to the Administrative Agent additional Cash Collateral in an amount sufficient to eliminate such deficiency (after giving effect to any Cash Collateral provided by the Defaulting Lender).

(ii) Application. Notwithstanding anything to the contrary contained in this Agreement, Cash Collateral provided under this Section 2.09 or Section 2.10 in respect of Letters of Credit shall be applied to the satisfaction of the Defaulting Lender’s obligation to fund participations in respect of LC Exposure (including, as to Cash Collateral provided by a Defaulting Lender, any interest accrued on such obligation) for which the Cash Collateral was so provided, prior to any other application of such property as may otherwise be provided for herein.

49

(iii) Termination of Requirement. Cash Collateral (or the appropriate portion thereof) provided to reduce the Fronting Exposure of the Issuing Bank shall no longer be required to be held as Cash Collateral pursuant to this Section 2.09 following (i) the elimination of the applicable Fronting Exposure (including by the termination of Defaulting Lender status of the applicable Lender), or (ii) the determination by the Administrative Agent and the Issuing Bank that there exists excess Cash Collateral; provided that, subject to Section 2.10, the Person providing Cash Collateral and the Issuing Bank may agree that Cash Collateral shall be held to support future anticipated Fronting Exposure or other obligations; and provided further that to the extent that such Cash Collateral was provided by the Borrower, such Cash Collateral shall remain subject to the security interest granted pursuant to the Loan Documents.

Section 2.10 Defaulting Lenders.

(a) Defaulting Lender Adjustments. Notwithstanding anything to the contrary contained in this Agreement, if any Lender becomes a Defaulting Lender, then, until such time as such Lender is no longer a Defaulting Lender, to the extent permitted by Applicable Law:

(i) Waivers and Amendments. Such Defaulting Lender’s right to approve or disapprove any amendment, waiver or consent with respect to this Agreement shall be restricted as set forth in the definition of Majority Lenders.

(ii) Defaulting Lender Waterfall. Any payment of principal, interest, fees or other amounts received by the Administrative Agent for the account of such Defaulting Lender (whether voluntary or mandatory, at maturity, pursuant to Article X or otherwise) or received by the Administrative Agent from a Defaulting Lender pursuant to Section 12.08 shall be applied at such time or times as may be determined by the Administrative Agent as follows: first, to the payment of any amounts owing by such Defaulting Lender to the Administrative Agent hereunder; second, to the payment on a pro rata basis of any amounts owing by such Defaulting Lender to the Issuing Bank hereunder; third, to Cash Collateralize the Fronting Exposure of the Issuing Bank with respect to such Defaulting Lender in accordance with Section 2.09; fourth, as the Borrower may request (so long as no Default or Event of Default exists), to the funding of any Loan or funded participation in respect of which such Defaulting Lender has failed to fund its portion thereof as required by this Agreement, as determined by the Administrative Agent; fifth, if so determined by the Administrative Agent and the Borrower, to be held in a deposit account and released pro rata in order to (A) satisfy such Defaulting Lender’s potential future funding obligations with respect to Loans and funded participations under this Agreement and (B) Cash Collateralize the Issuing Bank’s future Fronting Exposure with respect to such Defaulting Lender with respect to future Letters of Credit issued under this Agreement, in accordance with Section 2.09; sixth, to the payment of any amounts owing to the Lenders or the Issuing Bank as a result of any judgment of a court of competent jurisdiction obtained by any Lender or the Issuing Bank against such Defaulting Lender as a result of such Defaulting Lender’s breach of its obligations under this Agreement; seventh, so long as no Default or Event of Default exists, to the payment of any amounts owing to the Borrower as a result of any judgment of a court of competent jurisdiction obtained by the Borrower against such Defaulting Lender as a result of such Defaulting Lender’s breach of its obligations under this Agreement; and eighth, to such Defaulting Lender or as otherwise directed by a court of competent jurisdiction; provided that if (1) such payment is a payment of the principal amount of any Loans or funded participations in Letters of

50

Credit in respect of which such Defaulting Lender has not fully funded its appropriate share, and (2) such Loans were made or the related Letters of Credit were issued at a time when the conditions set forth in Section 6.02 were satisfied or waived, such payment shall be applied solely to pay the Loans of, and funded participations in Letters of Credit owed to, all Non-Defaulting Lenders on a pro rata basis prior to being applied to the payment of any Loans of, or funded participations in Letters of Credit owed to, such Defaulting Lender until such time as all Loans and funded and unfunded participations in LC Exposure are held by the Lenders pro rata in accordance with the Commitment under the Agreement without giving effect to Section 2.10(a)(iv). Any payments, prepayments or other amounts paid or payable to a Defaulting Lender that are applied (or held) to pay amounts owed by a Defaulting Lender or to post Cash Collateral pursuant to this Section 2.10(a)(ii) shall be deemed paid to and redirected by such Defaulting Lender, and each Lender irrevocably consents hereto.

(iii) Certain Fees.

(A) No Defaulting Lender shall be entitled to receive any commitment fee for any period during which that Lender is a Defaulting Lender (and the Borrower shall not be required to pay any such fee that otherwise would have been required to have been paid to that Defaulting Lender).

(B) Each Defaulting Lender shall be entitled to receive letter of credit fees pursuant to Section 3.05(b) for any period during which that Lender is a Defaulting Lender only to the extent allocable to its Applicable Percentage of the stated amount of Letters of Credit for which it has provided Cash Collateral pursuant to Section 2.09.

(C) With respect to any commitment fee or letter of credit fee not required to be paid to any Defaulting Lender pursuant to clause (A) or (B) above, the Borrower shall (1) pay to each Non-Defaulting Lender that portion of any such fee otherwise payable to such Defaulting Lender with respect to such Defaulting Lender’s participation in LC Exposure that has been reallocated to such Non-Defaulting Lender pursuant to clause (iv) below, (2) pay to each Issuing Bank, as applicable, the amount of any such fee otherwise payable to such Defaulting Lender to the extent allocable to such Issuing Bank’s Fronting Exposure to such Defaulting Lender, and (3) not be required to pay the remaining amount of any such fee.

(iv) Reallocation of Participations to Reduce Fronting Exposure. All or any part of such Defaulting Lender’s participation in LC Exposure shall be reallocated among the Non-Defaulting Lenders in accordance with their respective Applicable Percentages (calculated without regard to such Defaulting Lender’s Commitment) but only to the extent that (x) the conditions set forth in Section 6.2 are satisfied at the time of such reallocation (and, unless the Borrower shall have otherwise notified the Administrative Agent at such time, the Borrower shall be deemed to have represented and warranted that such conditions are satisfied at such time), and (y) such reallocation does not cause the aggregate Revolving Credit Exposure of any Non- Defaulting Lender to exceed such Non-Defaulting Lender’s Applicable Percentage of the Commitment. No reallocation hereunder shall constitute a waiver or release of any claim of any party hereunder against a Defaulting Lender arising from that Lender having become a Defaulting Lender, including any claim of a Non-Defaulting Lender as a result of such Non-Defaulting Lender’s increased exposure following such reallocation.

51

(v) Cash Collateral. If the reallocation described in clause (iv) above cannot, or can only partially, be effected, the Borrower shall, without prejudice to any right or remedy available to it hereunder or under law, Cash Collateralize the Issuing Bank’s Fronting Exposure in accordance with the procedures set forth in Section 2.09.

(b) Defaulting Lender Cure. If the Borrower, the Administrative Agent and the Issuing Bank agree in writing that a Lender is no longer a Defaulting Lender, the Administrative Agent will so notify the parties hereto, whereupon as of the effective date specified in such notice and subject to any conditions set forth therein (which may include arrangements with respect to any Cash Collateral), such Lender will, to the extent applicable, purchase at par that portion of outstanding Loans of the other Lenders or take such other actions as the Administrative Agent may determine to be necessary to cause the Loans and funded and unfunded participations in Letters of Credit to be held pro rata by the Lenders in accordance with the Commitments under this Agreement (without giving effect to Section 2.10(a)(iv)), whereupon such Lender will cease to be a Defaulting Lender; provided that no adjustments will be made retroactively with respect to fees accrued or payments made by or on behalf of the Borrower while that Lender was a Defaulting Lender; and provided, further, that except to the extent otherwise expressly agreed by the affected parties, no change hereunder from Defaulting Lender to Lender will constitute a waiver or release of any claim of any party hereunder arising from that Lender’s having been a Defaulting Lender.

(c) New Letters of Credit. So long as any Lender is a Defaulting Lender, no Issuing Bank shall be required to issue, extend, renew or increase any Letter of Credit unless it is satisfied that it will have no Fronting Exposure after giving effect thereto.

ARTICLE III

Payments of Principal and Interest; Prepayments; Fees

Section 3.01 Repayment of Loans. The Borrower hereby unconditionally promises to pay to the Administrative Agent for the account of each Lender the then unpaid principal amount of each Loan on the Termination Date.

Section 3.02 Interest.

(a) ABR Loans. The Loans comprising each ABR Borrowing shall bear interest at the Alternate Base Rate plus the Applicable Margin, but in no event to exceed the Highest Lawful Rate.

(b) Eurodollar Loans. The Loans comprising each Eurodollar Borrowing shall bear interest at the Adjusted LIBO Rate for the Interest Period in effect for such Borrowing plus the Applicable Margin, but in no event to exceed the Highest Lawful Rate.

52

(c) Post-Default Rate and Borrowing Base Deficiency Rate. Notwithstanding the foregoing, (i) if an Event of Default has occurred and is continuing, or if any principal of or interest on any Loan or any fee or other amount payable by the Parent Guarantor, the Borrower or any other Guarantor hereunder or under any other Loan Document is not paid when due, whether at stated maturity, upon acceleration or otherwise, and including any payments in respect of a Borrowing Base Deficiency under Section 3.04(c), then all Loans outstanding, in the case of an Event of Default, and such overdue amount, in the case of a failure to pay amounts when due, shall bear interest, after as well as before judgment, at a rate per annum equal to two percent (2%) plus the rate applicable to ABR Loans as provided in Section 3.02(a), but in no event to exceed the Highest Lawful Rate, and (ii) during any Borrowing Base Deficiency, all Loans outstanding at such time shall bear interest, after as well as before judgment, at the rate then applicable to such Loans, plus the Applicable Margin, if any, plus an additional two percent (2%), but in no event to exceed the Highest Lawful Rate.

(d) Interest Payment Dates. Accrued interest on each Loan shall be payable in arrears on each Interest Payment Date for such Loan and on the Termination Date; provided that (i) interest accrued pursuant to Section 3.02(c) shall be payable on demand, (ii) in the event of any repayment or prepayment of any Loan (other than an optional prepayment of an ABR Loan prior to the Termination Date), accrued interest on the principal amount repaid or prepaid shall be payable on the date of such repayment or prepayment, and (iii) in the event of any conversion of any Eurodollar Loan prior to the end of the current Interest Period therefor, accrued interest on such Loan shall be payable on the effective date of such conversion.

(e) Interest Rate Computations. All interest hereunder shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), except that interest computed by reference to the Alternate Base Rate at times when the Alternate Base Rate is based on the Prime Rate shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and in each case shall be payable for the actual number of days elapsed (including the first day but excluding the last day). The applicable Alternate Base Rate or Adjusted LIBO Rate shall be determined by the Administrative Agent, and such determination shall be conclusive absent manifest error, and be binding upon the parties hereto.

Section 3.03 Alternate Rate of Interest. If prior to the commencement of any Interest Period for a Eurodollar Borrowing:

(a) the Administrative Agent determines (which determination shall be conclusive absent manifest error) that adequate and reasonable means do not exist for ascertaining the Adjusted LIBO Rate or the LIBO Rate for such Interest Period; or

(b) the Administrative Agent is advised by the Majority Lenders that the Adjusted LIBO Rate or LIBO Rate, as applicable, for such Interest Period will not adequately and fairly reflect the cost to such Lenders of making or maintaining their Loans included in such Borrowing for such Interest Period;

then the Administrative Agent shall give notice thereof to the Borrower and the Lenders by telephone or telecopy as promptly as practicable thereafter and, until the Administrative Agent notifies the Borrower and the Lenders that the circumstances giving rise to such notice no longer exist, (i) any Interest Election Request that requests the conversion of any Borrowing to, or continuation of any Borrowing as, a Eurodollar Borrowing shall be ineffective, and (ii) if any Borrowing Request requests a Eurodollar Borrowing, such Borrowing shall be made as an ABR Borrowing.

53

Section 3.04 Prepayments.

(a) Optional Prepayments. The Borrower shall have the right at any time and from time to time to prepay any Borrowing in whole or in part, subject to prior notice in accordance with Section 3.04(b).

(b) Notice and Terms of Optional Prepayment. The Borrower shall notify the Administrative Agent by telephone (confirmed by telecopy) of any prepayment hereunder (i) in the case of prepayment of a Eurodollar Borrowing, not later than 12:00 noon, Houston, Texas time, three Business Days before the date of prepayment, or (ii) in the case of prepayment of an ABR Borrowing, not later than 12:00 noon, Houston, Texas time, one Business Day before the date of prepayment. Each such notice shall be irrevocable and shall specify the prepayment date and the principal amount of each Borrowing or portion thereof to be prepaid. Promptly following receipt of any such notice relating to a Borrowing, the Administrative Agent shall advise the Lenders of the contents thereof. Each partial prepayment of any Borrowing shall be in an amount that would be permitted in the case of an advance of a Borrowing of the same Type as provided in Section 2.02. Each prepayment of a Borrowing shall be applied ratably to the Loans included in the prepaid Borrowing. Prepayments shall be accompanied by accrued interest to the extent required by Section 3.02.

(c) Mandatory Prepayments.

(i) If, after giving effect to any termination or reduction of the Aggregate Maximum Credit Amounts or Aggregate Elected Commitment Amount pursuant to Section 2.06(b) or Section 2.07A, the total Revolving Credit Exposures exceeds the total Commitments, then the Borrower shall immediately (and in any event on the Business Day of such termination or reduction) (A) prepay the Borrowings in an aggregate principal amount equal to such excess, and (B) if any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(j).⁷³

(ii) Upon any redetermination of or adjustment to the amount of the Borrowing Base in accordance with Section 2.07 (other than Section 2.07(e) and Section 2.07(f)) or Section 8.13(c), if the total Revolving Credit Exposure exceeds the redetermined or adjusted Borrowing Base, then the Borrower shall (A) prepay the Borrowings in an aggregate principal amount equal to such excess, and (B) if the Borrower prepays such Borrowings pursuant to clause (A) of this subsection and any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(j). The Borrower

54

shall be obligated to make such prepayment and/or deposit of cash collateral within ninety (90) days following its receipt of the New Borrowing Base Notice in accordance with Section 2.07(d) or the date the adjustment occurs (and may make such prepayment and/or deposit at any time and from time to time, in whole or in part, prior to the end of such 90-day period); provided that all payments required to be made pursuant to this Section 3.04(c)(ii) must be made on or prior to the Termination Date.

(iii) Upon any adjustments to the Borrowing Base pursuant to Section 2.07(e), Section 2.07(f), Section 9.05(n)(iii), or Section 9.12(d), if the total Revolving Credit Exposures exceeds the Borrowing Base as adjusted, then the Borrower shall (A) prepay the Borrowings in an aggregate principal amount equal to such excess, and (B) if any excess remains after prepaying all of the Borrowings as a result of an LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to such excess to be held as cash collateral as provided in Section 2.08(j). The Borrower shall be obligated to make such prepayment and/or deposit of cash collateral on the date of such termination, creation of offsetting positions or designation or on the date on which it receives cash proceeds as a result of such issuance or disposition; provided that all payments required to be made pursuant to this Section 3.04(c)(iii) must be made on or prior to the Termination Date.⁷⁴

(iv) Notwithstanding anything to the contrary herein, if the Borrower or any of its Restricted Subsidiaries sells any Property when a Borrowing Base Deficiency or Event of Default exists, then the Borrower shall (A) prepay the Borrowings in an aggregate principal amount equal to the net cash proceeds received from such sale, and (B) if any excess remains after prepaying all of the Borrowings and there exists any LC Exposure, pay to the Administrative Agent on behalf of the Lenders an amount equal to the lesser of such excess and the amount of such LC Exposure to be held as cash collateral as provided in Section 2.08(j). The Borrower shall be obligated to make such prepayment and/or deposit of cash collateral on the date it or any Restricted Subsidiary receives cash proceeds as a result of such sale; provided that all payments required to be made pursuant to this Section 3.04(c)(iv) must be made on or prior to the Termination Date.⁷⁵

(v) Each prepayment of Borrowings pursuant to this Section 3.04(c) shall be applied, first, ratably to any ABR Borrowings then outstanding, and, second, to any Eurodollar Borrowings then outstanding, and if more than one Eurodollar Borrowing is then outstanding, to each such Eurodollar Borrowing in order of priority beginning with the Eurodollar Borrowing with the least number of days remaining in the Interest Period applicable thereto and ending with the Eurodollar Borrowing with the most number of days remaining in the Interest Period applicable thereto.

(vi) Each prepayment of Borrowings pursuant to this Section 3.04(c) shall be applied ratably to the Loans included in the prepaid Borrowings. Prepayments pursuant to this Section 3.04(c) shall be accompanied by accrued interest to the extent required by Section 3.02.

55

(d) No Premium or Penalty. Prepayments permitted or required under this Section 3.04 shall be without premium or penalty, except as required under Section 5.02.

Section 3.05 Fees.

(a) Commitment Fees. The Borrower agrees to pay to the Administrative Agent for the account of each Lender a commitment fee, which shall accrue at the Commitment Fee Rate on the average daily amount of the unused amount of the Commitment of such Lender during the period from and including the date of this Agreement to but excluding the Termination Date. Accrued commitment fees shall be payable in arrears on the last day of March, June, September and December of each year and on the Termination Date, commencing on the first such date to occur after the date hereof. All commitment fees shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and shall be payable for the actual number of days elapsed (including the first day but excluding the last day).

(b) Letter of Credit Fees. The Borrower agrees to pay (i) to the Administrative Agent for the account of each Lender a participation fee with respect to its participations in Letters of Credit, which shall accrue at the same Applicable Margin used to determine the interest rate applicable to Eurodollar Loans on the average daily amount of such Lender’s LC Exposure (excluding any portion thereof attributable to unreimbursed LC Disbursements) during the period from and including the date of this Agreement to but excluding the later of the date on which such Lender’s Commitment terminates and the date on which such Lender ceases to have any LC Exposure, (ii) to the Issuing Bank a fronting fee, which shall accrue at the rate of 0.125% per annum on the average daily amount of the LC Exposure (excluding any portion thereof attributable to unreimbursed LC Disbursements) during the period from and including the date of this Agreement to but excluding the later of the date of termination of the Commitments and the date on which there ceases to be any LC Exposure, provided that in no event shall such fee be less than $500 during any calendar year, and (iii) to the Issuing Bank, for its own account, its standard fees with respect to the issuance, amendment, renewal or extension of any Letter of Credit or processing of drawings thereunder. Participation fees and fronting fees accrued through and including the last day of March, June, September and December of each year shall be payable on the third Business Day following such last day, commencing on the first such date to occur after the date of this Agreement; provided that all such fees shall be payable on the Termination Date and any such fees accruing after the Termination Date shall be payable on demand. Any other fees payable to the Issuing Bank pursuant to this Section 3.05(b) shall be payable within 10 days after demand. All participation fees and fronting fees shall be computed on the basis of a year of 360 days, unless such computation would exceed the Highest Lawful Rate, in which case interest shall be computed on the basis of a year of 365 days (or 366 days in a leap year), and shall be payable for the actual number of days elapsed (including the first day but excluding the last day).⁷⁶

56

(c) Other Fees. The Borrower agrees to pay to the Administrative Agent, for its own account and for the account of each Lender, as applicable, fees payable in the amounts and at the times separately agreed upon between the Borrower and the Administrative Agent in the Fee Letter.

ARTICLE IV

Payments; Pro Rata Treatment; Sharing of Set-offs

Section 4.01 Payments Generally; Pro Rata Treatment; Sharing of Set-offs.

(a) Payments by the Borrower. The Borrower shall make each payment required to be made by it hereunder (whether of principal, interest, fees or reimbursement of LC Disbursements, or of amounts payable under Section 5.01, Section 5.02, Section 5.03 or otherwise) prior to 12:00 noon, Houston, Texas time, on the date when due, in immediately available funds, without defense, deduction, recoupment, set-off or counterclaim. Fees, once paid, shall be fully earned and shall not be refundable under any circumstances. Any amounts received after such time on any date may, in the discretion of the Administrative Agent, be deemed to have been received on the next succeeding Business Day for purposes of calculating interest thereon. All such payments shall be made to the Administrative Agent at its offices specified in Section 12.01, except payments to be made directly to the Issuing Bank as expressly provided herein and except that payments pursuant to Section 5.01, Section 5.02, Section 5.03 and Section 12.03 shall be made directly to the Persons entitled thereto. The Administrative Agent shall distribute any such payments received by it for the account of any other Person to the appropriate recipient promptly following receipt thereof. If any payment hereunder shall be due on a day that is not a Business Day, the date for payment shall be extended to the next succeeding Business Day, and, in the case of any payment accruing interest, interest thereon shall be payable for the period of such extension. All payments hereunder shall be made in dollars.

(b) Application of Insufficient Payments. If at any time insufficient funds are received by and available to the Administrative Agent to pay fully all amounts of principal, unreimbursed LC Disbursements, interest and fees then due hereunder, such funds shall be applied (i) first, towards payment of interest and fees then due hereunder, ratably among the parties entitled thereto in accordance with the amounts of interest and fees then due to such parties, and (ii) second, towards payment of principal and unreimbursed LC Disbursements then due hereunder, ratably among the parties entitled thereto in accordance with the amounts of principal and unreimbursed LC Disbursements then due to such parties.

57

(c) Sharing of Payments by Lenders. If any Lender shall, by exercising any right of set-off or counterclaim or otherwise, obtain payment in respect of any principal of or interest on any of its Loans or participations in LC Disbursements resulting in such Lender receiving payment of a greater proportion of the aggregate amount of its Loans and participations in LC Disbursements and accrued interest thereon than the proportion received by any other Lender, then the Lender receiving such greater proportion shall purchase (for cash at face value) participations in the Loans and participations in LC Disbursements of other Lenders to the extent necessary so that the benefit of all such payments shall be shared by the Lenders ratably in accordance with the aggregate amount of principal of and accrued interest on their respective Loans and participations in LC Disbursements; provided that (i) if any such participations are purchased and all or any portion of the payment giving rise thereto is recovered, such participations shall be rescinded and the purchase price restored to the extent of such recovery, without interest, and (ii) the provisions of this Section 4.01(c) shall not be construed to apply to any payment made by the Borrower pursuant to and in accordance with the express terms of this Agreement or any payment obtained by a Lender as consideration for the assignment of or sale of a participation in any of its Loans or participations in LC Disbursements to any assignee or participant, other than to the Parent Guarantor, the Borrower or any Restricted Subsidiary or Affiliate thereof (as to which the provisions of this Section 4.01(c) shall apply). The Parent Guarantor and the Borrower consent to the foregoing and agree, to the extent it may effectively do so under applicable law, that any Lender acquiring a participation pursuant to the foregoing arrangements may exercise against the Parent Guarantor or the Borrower rights of set-off and counterclaim with respect to such participation as fully as if such Lender were a direct creditor of the Parent Guarantor or the Borrower in the amount of such participation.⁷⁷

Section 4.02 Presumption of Payment by the Borrower. Unless the Administrative Agent shall have received notice from the Borrower prior to the date on which any payment is due to the Administrative Agent for the account of the Lenders or the Issuing Bank that the Borrower will not make such payment, the Administrative Agent may assume that the Borrower has made such payment on such date in accordance herewith and may, in reliance upon such assumption, distribute to the Lenders or the Issuing Bank, as the case may be, the amount due. In such event, if the Borrower has not in fact made such payment, then each of the Lenders or the Issuing Bank, as the case may be, severally agrees to repay to the Administrative Agent forthwith on demand the amount so distributed to such Lender or Issuing Bank with interest thereon, for each day from and including the date such amount is distributed to it to but excluding the date of payment to the Administrative Agent, at the greater of the Federal Funds Effective Rate and a rate determined by the Administrative Agent in accordance with banking industry rules on interbank compensation.

Section 4.03 Disposition of Proceeds. The Security Instruments contain an assignment by the Parent Guarantor, the Borrower and/or the other Guarantors unto and in favor of the Administrative Agent for the benefit of the Lenders of all of the Borrower’s and/or each Guarantor’s interest in and to production and all proceeds attributable thereto which may be produced from or allocated to the Mortgaged Property. The Security Instruments further provide in general for the application of such proceeds to the satisfaction of the Indebtedness and other obligations described therein and secured thereby. Notwithstanding the assignment contained in such Security Instruments, until the occurrence of an Event of Default, (a) the Administrative

58

Agent and the Lenders agree that they will neither notify the purchaser or purchasers of such production nor take any other action to cause such proceeds to be remitted to the Administrative Agent or the Lenders, but the Lenders will instead permit such proceeds to be paid to the Parent Guarantor, the Borrower and the Restricted Subsidiaries and (b) the Lenders hereby authorize the Administrative Agent to take such actions as may be necessary to cause such proceeds to be paid to the Parent Guarantor, the Borrower and such Restricted Subsidiaries.⁷⁸

ARTICLE V

Increased Costs; Break Funding Payments; Taxes; Illegality

Section 5.01 Increased Costs.

(a) Eurodollar Changes in Law. If any Change in Law shall:

(i) impose, modify or deem applicable any reserve, special deposit or similar requirement against assets of, deposits with or for the account of, or credit extended by, any Lender (except any such reserve requirement reflected in the Adjusted LIBO Rate); or

(ii) impose on any Lender or the London interbank market any other condition affecting this Agreement or Eurodollar Loans made by such Lender;

and the result of any of the foregoing shall be to increase the cost to such Lender of making or maintaining any Eurodollar Loan (or of maintaining its obligation to make any such Loan) or to reduce the amount of any sum received or receivable by such Lender (whether of principal, interest or otherwise), then the Borrower will pay to such Lender such additional amount or amounts as will compensate such Lender for such additional costs incurred or reduction suffered.

(b) Capital Requirements. If any Lender or the Issuing Bank determines that any Change in Law regarding capital or liquidity requirements has or would have the effect of reducing the rate of return on such Lender’s or the Issuing Bank’s capital or liquidity or on the capital or liquidity of such Lender’s or the Issuing Bank’s holding company, if any, as a consequence of this Agreement or the Loans made by, or participations in Letters of Credit held by, such Lender, or the Letters of Credit issued by the Issuing Bank, to a level below that which such Lender or the Issuing Bank or such Lender’s or the Issuing Bank’s holding company could have achieved but for such Change in Law (taking into consideration such Lender’s or the Issuing Bank’s policies and the policies of such Lender’s or the Issuing Bank’s holding company with respect to capital adequacy and liquidity), then from time to time the Borrower will pay to such Lender or the Issuing Bank, as the case may be, such additional amount or amounts as will compensate such Lender or the Issuing Bank or such Lender’s or the Issuing Bank’s holding company for any such reduction suffered.

59

(c) Certificates. A certificate of a Lender or the Issuing Bank setting forth the amount or amounts necessary to compensate such Lender or the Issuing Bank or its holding company, as the case may be, as specified in Section 5.01(a) or (b) shall be delivered to the Borrower and shall be conclusive absent manifest error. The Borrower shall pay such Lender or the Issuing Bank, as the case may be, the amount shown as due on any such certificate within 10 days after receipt thereof.

(d) Effect of Failure or Delay in Requesting Compensation. Failure or delay on the part of any Lender or the Issuing Bank to demand compensation pursuant to this Section 5.1 shall not constitute a waiver of such Lender’s or the Issuing Bank’s right to demand such compensation; provided that the Borrower shall not be required to compensate a Lender or the Issuing Bank pursuant to this Section 5.01 for any increased costs or reductions incurred more than 365 days prior to the date that such Lender or the Issuing Bank, as the case may be, notifies the Borrower of the Change in Law giving rise to such increased costs or reductions and of such Lender’s or the Issuing Bank’s intention to claim compensation therefor; provided further that, if the Change in Law giving rise to such increased costs or reductions is retroactive, then the 365- day period referred to above shall be extended to include the period of retroactive effect thereof.

Section 5.02 Break Funding Payments. In the event of (a) the payment of any principal of any Eurodollar Loan other than on the last day of an Interest Period applicable thereto (including as a result of an Event of Default), (b) the conversion of any Eurodollar Loan into an ABR Loan other than on the last day of the Interest Period applicable thereto, (c) the failure to borrow, convert, continue or prepay any Eurodollar Loan on the date specified in any notice delivered pursuant hereto, or (d) the assignment of any Eurodollar Loan other than on the last day of the Interest Period applicable thereto pursuant to Section 5.04, then, in any such event, the Borrower shall compensate each Lender for the loss, cost and expense attributable to such event. In the case of a Eurodollar Loan, such loss, cost or expense to any Lender shall be deemed to include an amount determined by such Lender to be the excess, if any, of (i) the amount of interest which would have accrued on the principal amount of such Loan had such event not occurred, at the Adjusted LIBO Rate that would have been applicable to such Loan, for the period from the date of such event to the last day of the then current Interest Period therefor (or, in the case of a failure to borrow, convert or continue, for the period that would have been the Interest Period for such Loan), over (ii) the amount of interest which would accrue on such principal amount for such period at the interest rate which such Lender would bid were it to bid, at the commencement of such period, for dollar deposits of a comparable amount and period from other banks in the Eurodollar market.

A certificate of any Lender setting forth any amount or amounts that such Lender is entitled to receive pursuant to this Section 5.02 shall be delivered to the Borrower and shall be conclusive absent manifest error. The Borrower shall pay such Lender the amount shown as due on any such certificate within 10 days after receipt thereof.

Section 5.03 Taxes.

(a) Defined Terms. For purposes of this Section 5.03, the term “Lender” includes any Issuing Bank and the term “applicable law” includes FATCA.

60

(b) Payments Free of Taxes. Any and all payments by or on account of any obligation of the Parent Guarantor, the Borrower or any Guarantor under any Loan Document shall be made without deduction or withholding for any Taxes, except as required by applicable law. If any applicable law (as determined in the good faith discretion of an applicable withholding agent) requires the deduction or withholding of any Tax from any such payment by a withholding agent, then the applicable withholding agent shall be entitled to make such deduction or withholding and shall timely pay the full amount deducted or withheld to the relevant Governmental Authority in accordance with applicable law and, if such Tax is an Indemnified Tax, then the sum payable by the Parent Guarantor, the Borrower or a Guarantor, as applicable, shall be increased as necessary so that, after such deduction or withholding has been made (including such deductions and withholdings applicable to additional sums payable under this Section 5.03), the amounts received with respect to this Agreement equal the sum which would have been received had no such deduction or withholding been made.

(c) Payment of Other Taxes by the Borrower. The Borrower shall timely pay to the relevant Governmental Authority in accordance with applicable law, or at the written direction of the Administrative Agent timely reimburse it for, Other Taxes.

(d) Indemnification by the Borrower. The Borrower shall indemnify the Administrative Agent and each Lender, within 10 days after written demand therefor, for the full amount of any Indemnified Taxes (including Indemnified Taxes imposed or asserted on or attributable to amounts payable under this Section 5.03) payable or paid by the Parent Guarantor, the Borrower or a Guarantor, as applicable, or required to be withheld or deducted from a payment to the Administrative Agent or a Lender, as applicable, and any reasonable expenses arising therefrom or with respect thereto, whether or not such Indemnified Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to the Borrower by a Lender (with a copy to the Administrative Agent), or by the Administrative Agent on its own behalf or on behalf of a Lender, shall be conclusive absent manifest error.

(e) Indemnification by the Lenders. Each Lender shall severally indemnify the Administrative Agent, within 10 days after demand therefor, for (i) any Taxes attributable to such Lender (but only to the extent that the Parent Guarantor, the Borrower or a Guarantor has not already indemnified the Administrative Agent for such Taxes and without limiting the obligation of the Parent Guarantor, the Borrower and the Guarantors to do so) and (ii) any Taxes attributable to such Lender’s failure to comply with the provisions of Section 12.04(c) relating to the maintenance of a Participant Register, in either case, that are payable or paid by the Administrative Agent in connection with any Loan Document, and any reasonable expenses arising therefrom or with respect thereto, whether or not such Taxes were correctly or legally imposed or asserted by the relevant Governmental Authority. A certificate as to the amount of such payment or liability delivered to any Lender by the Administrative Agent shall be conclusive absent manifest error. Each Lender hereby authorizes the Administrative Agent to set off and apply any and all amounts at any time owing to such Lender under any Loan Document or otherwise payable by the Administrative Agent to the Lender from any other source against any amount due to the Administrative Agent under this paragraph (e).

(f) Evidence of Payments. As soon as practicable after any payment of Indemnified Taxes or Other Taxes by the Borrower or a Guarantor to a Governmental Authority, the Borrower shall deliver to the Administrative Agent the original or a certified copy of a receipt issued by such Governmental Authority evidencing such payment, a copy of the return reporting such payment or other evidence of such payment reasonably satisfactory to the Administrative Agent.

61

(g) Status of Lenders.

(i) Any Lender that is entitled to an exemption from or reduction of withholding Tax with respect to payments made under any Loan Document shall deliver to the Borrower and the Administrative Agent, at the time or times reasonably requested by the Borrower or the Administrative Agent, such properly completed and executed documentation reasonably requested by the Borrower or the Administrative Agent as will permit such payments to be made without withholding or at a reduced rate of withholding. In addition, any Lender, if reasonably requested by the Borrower or the Administrative Agent, shall deliver such other documentation prescribed by applicable law or reasonably requested by the Borrower or the Administrative Agent as will enable the Borrower or the Administrative Agent to determine whether or not such Lender is subject to backup withholding or information reporting requirements. Notwithstanding anything to the contrary in the preceding two sentences, the completion, execution and submission of such documentation (other than such documentation set forth in Section 5.03(g)(ii)(A), (ii)(B) and (ii)(D) below) shall not be required if in the Lender’s reasonable judgment such completion, execution or submission would subject such Lender to any material unreimbursed cost or expense or would materially prejudice the legal or commercial position of such Lender.;

(ii) Without limiting the generality of the foregoing,

(A) any Lender that is a U.S. Person shall deliver to the Borrower and the Administrative Agent on or prior to the date on which such Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrower or the Administrative Agent), executed originals of IRS Form W-9 certifying that such Lender is exempt from U.S. federal backup withholding tax;

(B) any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrower or the Administrative Agent), whichever of the following is applicable:

(I) in the case of a Foreign Lender claiming the benefits of an income tax treaty to which the United States is a party (1) with respect to payments of interest under any Loan Document, executed originals of IRS Form W-8BEN establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the “interest” article of such tax treaty and (2) with respect to any other applicable payments under any Loan Document, IRS Form W- 8BEN establishing an exemption from, or reduction of, U.S. federal withholding Tax pursuant to the “business profits” or “other income” article of such tax treaty;

(II) executed originals of IRS Form W-8ECI;

62

(III) in the case of a Foreign Lender claiming the benefits of the exemption for portfolio interest under Section 881(c) of the Code, (x) a certificate substantially in the form of Exhibit G-1 to the effect that such Foreign Lender is not a “bank” within the meaning of Section 881(c)(3)(A) of the Code, a “10 percent shareholder” of the Borrower within the meaning of Section 881(c)(3)(B) of the Code, or a “controlled foreign corporation” described in Section 881(c)(3)(C) of the Code (a “U.S. Tax Compliance Certificate”) and (y) executed originals of IRS Form W-8BEN; or

(IV) to the extent a Foreign Lender is not the beneficial owner, executed originals of IRS Form W-8IMY, accompanied by IRS Form W-8ECI, IRS Form W-8BEN, a U.S. Tax Compliance Certificate substantially in the form of Exhibit G-2 or Exhibit G-3, IRS Form W-9, and/or other certification documents from each beneficial owner, as applicable; provided that if the Foreign Lender is a partnership and one or more direct or indirect partners of such Foreign Lender are claiming the portfolio interest exemption, such Foreign Lender may provide a U.S. Tax Compliance Certificate substantially in the form of Exhibit G-4 on behalf of each such direct and indirect partner;

(C) any Foreign Lender shall, to the extent it is legally entitled to do so, deliver to the Borrower and the Administrative Agent (in such number of copies as shall be requested by the recipient) on or prior to the date on which such Foreign Lender becomes a Lender under this Agreement (and from time to time thereafter upon the reasonable request of the Borrower or the Administrative Agent), executed originals of any other form prescribed by applicable law as a basis for claiming exemption from or a reduction in U.S. federal withholding Tax, duly completed, together with such supplementary documentation as may be prescribed by applicable law to permit the Borrower or the Administrative Agent to determine the withholding or deduction required to be made; and

(D) if a payment made to a Lender under any Loan Document would be subject to U.S. federal withholding Tax imposed by FATCA if such Lender were to fail to comply with the applicable reporting requirements of FATCA (including those contained in Section 1471(b) or 1472(b) of the Code, as applicable), such Lender shall deliver to the Borrower and the Administrative Agent at the time or times prescribed by law and at such time or times reasonably requested by the Borrower or the Administrative Agent such documentation prescribed by applicable law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such additional documentation reasonably requested by the Borrower or the Administrative Agent as may be necessary for the Borrower and the Administrative Agent to comply with their obligations under FATCA and to determine that such Lender has complied with such Lender’s obligations under FATCA or to determine the amount to deduct and withhold from such payment. Solely for purposes of this clause (D), “FATCA” shall include any amendments made to FATCA after the date of this Agreement.

Each Lender agrees that if any form or certification it previously delivered expires or becomes obsolete or inaccurate in any respect, it shall update such form or certification or promptly notify the Borrower and the Administrative Agent in writing of its legal inability to do so.

63

(h) Treatment of Certain Refunds. If any party determines, in its sole, but reasonable, discretion exercised in good faith, that it has received a refund of any Taxes as to which it has been indemnified pursuant to this Section 5.03 (including by the payment of additional amounts pursuant to this Section 5.03), it shall pay to the indemnifying party an amount equal to such refund (but only to the extent of indemnity payments made under this Section with respect to the Taxes giving rise to such refund), net of all reasonable out-of-pocket expenses (including Taxes) of such indemnified party and without interest (other than any interest paid by the relevant Governmental Authority with respect to such refund). Such indemnifying party, upon the request of such indemnified party, shall repay to such indemnified party the amount paid over pursuant to this paragraph (h) (plus any penalties, interest or other charges imposed by the relevant Governmental Authority) in the event that such indemnified party is required to repay such refund to such Governmental Authority. Notwithstanding anything to the contrary in this paragraph (h), in no event will the indemnified party be required to pay any amount to an indemnifying party pursuant to this paragraph (h) the payment of which would place the indemnified party in a less favorable net after-Tax position than the indemnified party would have been in if the Tax subject to indemnification and giving rise to such refund had not been deducted, withheld or otherwise imposed and the indemnification payments or additional amounts with respect to such Tax had never been paid. This paragraph shall not be construed to require any indemnified party to make available its Tax returns (or any other information relating to its Taxes that it deems confidential) to the indemnifying party or any other Person.

(i) Survival. Each party’s obligations under this Section 5.03 shall survive the resignation or replacement of the Administrative Agent or any assignment of rights by, or the replacement of, a Lender, the termination of the Commitments and the repayment, satisfaction or discharge of all obligations under the Loan Documents.

Section 5.04 Mitigation Obligations. If any Lender requests compensation under Section 5.01, or if the Borrower is required to pay any additional amount to any Lender or any Governmental Authority for the account of any Lender pursuant to Section 5.03, then such Lender shall use reasonable efforts to designate a different lending office for funding or booking its Loans hereunder or to assign its rights and obligations hereunder to another of its offices, branches or affiliates, if, in the judgment of such Lender, such designation or assignment (i) would eliminate or reduce amounts payable pursuant to Section 5.01 or Section 5.03, as the case may be, in the future and (ii) would not subject such Lender to any unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender. The Borrower hereby agrees to pay all reasonable costs and expenses incurred by any Lender in connection with any such designation or assignment.

Section 5.05 Illegality. Notwithstanding any other provision of this Agreement, in the event that it becomes unlawful for any Lender or its applicable lending office to honor its obligation to make or maintain Eurodollar Loans either generally or having a particular Interest Period hereunder, then (a) such Lender shall promptly notify the Borrower and the Administrative Agent thereof and such Lender’s obligation to make such Eurodollar Loans shall be suspended

64

(the “Affected Loans”) until such time as such Lender may again make and maintain such Eurodollar Loans and (b) all Affected Loans which would otherwise be made by such Lender shall be made instead as ABR Loans (and, if such Lender so requests by notice to the Borrower and the Administrative Agent, all Affected Loans of such Lender then outstanding shall be automatically converted into ABR Loans on the date specified by such Lender in such notice) and, to the extent that Affected Loans are so made as (or converted into) ABR Loans, all payments of principal which would otherwise be applied to such Lender’s Affected Loans shall be applied instead to its ABR Loans.

ARTICLE VI

Conditions Precedent

Section 6.01 Effective Date. The obligations of the Lenders to make Loans and of the Issuing Bank to issue Letters of Credit hereunder, and the continuation of the loans and letters of credit under the Existing Credit Agreement as Loans and Letters of Credit under this Agreement as contemplated by Section 2.02(e), in each case, shall not become effective until the date on which each of the following conditions is satisfied (or waived in accordance with Section 12.02):

(a) The Administrative Agent, the Arranger and the Lenders shall have received all commitment, facility and agency fees and all other fees and amounts due and payable on or prior to the Effective Date, including, to the extent invoiced, reimbursement or payment of all out-of-pocket expenses required to be reimbursed or paid by the Borrower hereunder.

(b) The Administrative Agent shall have received a certificate of a Responsible Officer of the Parent Guarantor, the Borrower and each other Guarantor setting forth (i) resolutions of the members, board of directors or other appropriate governing body with respect to the authorization of the Borrower or such Guarantor to execute and deliver the Loan Documents to which it is a party and to enter into the transactions contemplated in those documents, (ii) the officers of the Borrower or such Guarantor (y) who are authorized to sign the Loan Documents to which the Borrower or such Guarantor is a party and (z) who will, until replaced by another officer or officers duly authorized for that purpose, act as its representative for the purposes of signing documents and giving notices and other communications in connection with this Agreement and the transactions contemplated hereby, (iii) specimen signatures of such authorized officers, and (iv) the limited liability company agreement, the articles or certificate of incorporation and by-laws or other applicable organizational documents of the Parent Guarantor, the Borrower and such other Guarantor, certified as being true and complete as of the date of such certificate. The Administrative Agent and the Lenders may conclusively rely on such certificate until the Administrative Agent receives notice in writing from the Parent Guarantor, the Borrower and such other Guarantor to the contrary.

(c) The Administrative Agent shall have received certificates of the appropriate State agencies with respect to the existence, qualification and good standing of the Parent Guarantor, the Borrower and each other Guarantor.

65

(d) The Administrative Agent shall have received a compliance certificate which shall be substantially in the form of Exhibit D, duly and properly executed by a Responsible Officer and dated as of the Effective Date.

(e) The Administrative Agent shall have received from each party hereto counterparts (in such number as may be requested by the Administrative Agent) of this Agreement signed on behalf of such party.

(f) The Administrative Agent shall have received duly executed Notes payable to each Lender in a principal amount equal to its Maximum Credit Amount dated as of the date hereof.

(g) The Administrative Agent shall have received from each party thereto duly executed counterparts (in such number as may be requested by the Administrative Agent) of the Security Instruments described on Exhibit E. In connection with the execution and delivery of the Security Instruments, the Administrative Agent shall:

(i) be reasonably satisfied that the Security Instruments create first priority, perfected Liens (subject only to Excepted Liens identified in clauses (a) to (d) and (f) of the definition thereof, but subject to the provisos at the end of such definition) on substantially all assets of the Borrower and the Guarantors, including a first priority perfected lien on all equipment and at least 80% of the total value of the Oil and Gas Properties evaluated in the most recently delivered Reserve Report; and

(ii) have received certificates, together with undated stock powers for such certificates, representing all of the issued and outstanding certificated Equity Interests of each of the Restricted Subsidiaries (direct or indirect) of the Borrower.

(h) The Administrative Agent shall have received an opinion of Akin Gump Strauss Hauer & Feld LLP, special counsel to the Borrower, in form and substance satisfactory to the Administrative Agent.

(i) The Administrative Agent shall have received a certificate of insurance coverage of the Borrower evidencing that the Borrower and the Parent Guarantor are carrying insurance in accordance with Section 7.12.

(j) The Administrative Agent shall have received title information as the Administrative Agent may reasonably require satisfactory to the Administrative Agent setting forth the status of title to at least 80% of the total value of the Oil and Gas Properties evaluated in the most recently delivered Reserve Report.

(k) The Administrative Agent shall be reasonably satisfied with the environmental condition of the Oil and Gas Properties of the Borrower and the Guarantors.

(l) The Administrative Agent shall have received a certificate of a Responsible Officer of the Borrower certifying that the Borrower has received all consents and approvals required by Section 7.03.

66

(m) The Administrative Agent shall have received the financial statements referred to in Section 7.04(a).

(n) The Administrative Agent shall have received appropriate UCC search certificates reflecting no prior Liens encumbering the Properties of the Parent Guarantor, the Borrower or their Subsidiaries for each of the following jurisdictions: Texas and any other jurisdiction requested by the Administrative Agent; other than those being assigned or released on or prior to the Effective Date or Liens permitted by Section 9.03.

(o) The Administrative Agent shall have received such other documents as the Administrative Agent or special counsel to the Administrative Agent may reasonably request.

The Administrative Agent shall notify the Borrower and the Lenders of the Effective Date, and such notice shall be conclusive and binding. Notwithstanding the foregoing, the obligations of the Lenders to make Loans and of the Issuing Bank to issue Letters of Credit hereunder shall not become effective unless each of the foregoing conditions is satisfied (or waived pursuant to Section 12.02) at or prior to 4:00 p.m., Houston, Texas time, on November 22, 2013 (and, in the event such conditions are not so satisfied or waived, at such time this Agreement shall cease to be of any force or effect and the loans and letters of credit outstanding under the Existing Credit Agreement shall continue to be outstanding thereunder).

Section 6.02 Each Credit Event. The obligation of each Lender to make a Loan on the occasion of any Borrowing (including the initial funding), and of the Issuing Bank to issue, amend, renew or extend any Letter of Credit, and the continuation of the loans and letters of credit under the Existing Credit Agreement as Loans and Letters of Credit under this Agreement as contemplated by Section 2.02(e), in each case, is subject to the satisfaction of the following conditions:

(a) At the time of and immediately after giving effect to such Borrowing or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, no Default shall have occurred and be continuing.

(b) At the time of and immediately after giving effect to such Borrowing or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, no event, development or circumstance has occurred or shall then exist that has resulted in, or could reasonably be expected to have, a Material Adverse Effect.

(c) The representations and warranties of the Parent Guarantor, the Borrower and the other Guarantors set forth in this Agreement and in the other Loan Documents shall be true and correct on and as of the date of such Borrowing or the date of issuance, amendment, renewal or extension of such Letter of Credit, as applicable, except to the extent any such representations and warranties are expressly limited to an earlier date, in which case, on and as of the date of such Borrowing or the date of issuance, amendment, renewal or extension of such Letter of Credit, as applicable, such representations and warranties shall continue to be true and correct as of such specified earlier date.

67

(d) The making of such Loan or the issuance, amendment, renewal or extension of such Letter of Credit, as applicable, would not conflict with, or cause any Lender or the Issuing Bank to violate or exceed, any applicable Governmental Requirement, and no Change in Law shall have occurred, and no litigation shall be pending or threatened, which does or, with respect to any threatened litigation, seeks to, enjoin, prohibit or restrain, the making or repayment of any Loan, the issuance, amendment, renewal, extension or repayment of any Letter of Credit or any participations therein or the consummation of the transactions contemplated by this Agreement or any other Loan Document.

(e) Except with respect to the continuation of the loans and letters of credit under the Existing Credit Agreement as Loans and Letters of Credit under this Agreement as contemplated by Section 2.02(e), the receipt by the Administrative Agent of a Borrowing Request in accordance with Section 2.03 or a request for a Letter of Credit in accordance with Section 2.08(b), as applicable.

(f) Intentionally Deleted⁷⁹.

Each request for a Borrowing and each request for the issuance, amendment, renewal or extension of any Letter of Credit shall be deemed to constitute a representation and warranty by the Parent Guarantor and the Borrower on the date thereof as to the matters specified in Sections 6.02(a) through (d) and (f).⁸⁰

ARTICLE VII

Representations and Warranties

The Parent Guarantor and the Borrower each represents and warrants to the Lenders that:

Section 7.01 Organization; Powers. Each of the Parent Guarantor, the Borrower and the Restricted Subsidiaries is duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization, has all requisite power and authority, and has all material governmental licenses, authorizations, consents and approvals necessary, to own its assets and to carry on its business as now conducted, and is qualified to do business in, and is in good standing in, every jurisdiction where such qualification is required, except where failure to have such power, authority, licenses, authorizations, consents, approvals and qualifications could not reasonably be expected to have a Material Adverse Effect.⁸¹

Section 7.02 Authority; Enforceability. The Transactions are within the Parent Guarantor’s, the Borrower’s and each other Guarantor’s corporate, partnership or other organizational powers and have been duly authorized by all necessary organizational action and, if required, action by any holders of its Equity Interests. Each Loan Document to which the Parent Guarantor, the Borrower and each other Guarantor is a party has been duly executed and

68

delivered by the Parent Guarantor, the Borrower and such other Guarantor and constitutes a legal, valid and binding obligation of the Parent Guarantor, the Borrower and such other Guarantor, as applicable, enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium or other laws affecting creditors’ rights generally and subject to general principles of equity, regardless of whether considered in a proceeding in equity or at law.

Section 7.03 Approvals; No Conflicts. The Transactions (a) do not require any consent or approval of, registration or filing with, or any other action by, any Governmental Authority or any other third Person (including holders of its Equity Interests or any class of directors, managers or supervisors, as applicable, whether interested or disinterested, of the Parent Guarantor, the Borrower or any other Person), nor is any such consent, approval, registration, filing or other action necessary for the validity or enforceability of any Loan Document or the consummation of the transactions contemplated thereby, except such as have been obtained or made and are in full force and effect other than the recording and filing of the Security Instruments and financing statements as required by this Agreement, (b) will not violate any applicable law or regulation or charter, bylaws, limited liability company agreements or other organizational documents of the Parent Guarantor, the Borrower or any Restricted Subsidiary or any order of any Governmental Authority, and (c) will not violate or result in a default under any indenture, agreement or other instrument binding upon the Parent Guarantor, the Borrower or any Restricted Subsidiaries or their Properties, or give rise to a right thereunder to require any payment to be made by the Parent Guarantor, the Borrower or any Restricted Subsidiaries and will not result in the creation or imposition of any Lien on any Property of the Parent Guarantor, the Borrower or any Restricted Subsidiaries (other than the Liens created by the Loan Documents).⁸²

Section 7.04 Financial Condition; No Material Adverse Change.

(a) The Parent Guarantor has heretofore furnished to the Lenders its audited consolidated balance sheet and statements of income, equity and cash flows as of and for the fiscal year ended December 31, 2012, reported on by Grant Thornton LLC, independent public accountants and its unaudited financial statements as of and for the fiscal quarter and the portion of the fiscal year ended June 30, 2013, certified by its Financial Officer. Such financial statements present fairly, in all material respects, the financial position and results of operations and cash flows of the Parent Guarantor and its Subsidiaries as of such dates and for such periods in accordance with GAAP, subject to year-end audit adjustments and the absence of footnotes in the case of the unaudited quarterly financial statements.

(b) Since December 31, 2012, there has been no event, development or circumstance that has had or could reasonably be expected to have a Material Adverse Effect.

69

(c) As of the date hereof, the Parent Guarantor, the Borrower and their Subsidiaries have no material Debt (including Disqualified Capital Stock) or any contingent liabilities, off-balance sheet liabilities or partnerships, liabilities for taxes, unusual forward or long- term commitments or unrealized or anticipated losses from any unfavorable commitments, except as referred to or reflected or provided for in the Financial Statements, and except those that, individually or in the aggregate, could not reasonably be expected to have a Material Adverse Effect on the Borrower or its Subsidiaries.

Section 7.05 Litigation. There are no actions, suits, investigations or proceedings by or before any arbitrator or Governmental Authority pending against or, to the knowledge of the Borrower, threatened against or affecting the Parent Guarantor, the Borrower or any Restricted Subsidiary (i) not fully covered by insurance (except for normal deductibles) as to which there is a reasonable possibility of an adverse determination that, if adversely determined, could reasonably be expected, individually or in the aggregate, to result in a Material Adverse Effect or (ii) that involve any Loan Document or the Transactions.⁸³

Section 7.06 Environmental Matters.⁸⁴ Except for such matters that, individually or in the aggregate, could not reasonably be expected to have a Material Adverse Effect on the Parent Guarantor or the Borrower:

(a) The Parent Guarantor, the Borrower and the Restricted Subsidiaries and each of their respective Properties and operations thereon are, and within all applicable statute of limitation periods have been, in compliance with all applicable Environmental Laws;

(b) The Parent Guarantor, the Borrower and the Restricted Subsidiaries have obtained all Environmental Permits required for their respective operations and each of their Properties, with all such Environmental Permits being currently in full force and effect, and neither the Parent Guarantor, the Borrower nor any Restricted Subsidiary has received any written notice or otherwise has knowledge that any such existing Environmental Permit will be revoked or that any application for any new Environmental Permit or renewal of any existing Environmental Permit will be protested or denied;

(c) There are no claims, demands, suits, orders, inquiries, or proceedings concerning any violation of, or any liability (including as a potentially responsible party) under, any applicable Environmental Laws that is pending or, to either the Parent Guarantor’s or the Borrower’s knowledge, threatened against the Parent Guarantor, the Borrower or any Restricted Subsidiary or any of their respective Properties or as a result of any operations at the Properties;

(d) None of the Properties of the Parent Guarantor, the Borrower or any Restricted Subsidiary contain or have contained any: (i) underground storage tanks; (ii) asbestos- containing materials; (iii) landfills or dumps; (iv) hazardous waste management units as defined pursuant to RCRA or any comparable state law; or (v) sites on or nominated for the National Priority List promulgated pursuant to CERCLA or any state remedial priority list promulgated or published pursuant to any comparable state law;

70

(e) There has been no Release or, to the Parent Guarantor’s or the Borrower’s knowledge, threatened Release, of Hazardous Materials at, on, under or from any of the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ Properties, there are no investigations, remediations, abatements, removals, or monitorings of Hazardous Materials required under applicable Environmental Laws at such Properties and, to the knowledge of the Borrower, none of such Properties are adversely affected by any Release or threatened Release of a Hazardous Material originating or emanating from any other real property;

(f) Neither the Parent Guarantor, the Borrower nor any of the Restricted Subsidiaries have received any written notice asserting an alleged liability or obligation under any applicable Environmental Laws with respect to the investigation, remediation, abatement, removal, or monitoring of any Hazardous Materials at, under, or Released or threatened to be Released from any real properties offsite the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ Properties and, to the Parent Guarantor’s and the Borrower’s knowledge, there are no conditions or circumstances that could reasonably be expected to result in the receipt of such written notice;

(g) There has been no exposure of any Person or property to any Hazardous Materials as a result of or in connection with the operations and businesses of any of the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ Properties that could reasonably be expected to form the basis for a claim for damages or compensation; and

(h) The Parent Guarantor and the Borrower has made available to Lenders complete and correct copies of all environmental site assessment reports, investigations, studies, analyses, and correspondence on environmental matters (including matters relating to any alleged non-compliance with or liability under Environmental Laws) that are in any of the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ possession or control and relating to their respective Properties or operations thereon.

Section 7.07 Compliance With Laws and Agreements; No Defaults.⁸⁵

(a) The Parent Guarantor, the Borrower and each of the Restricted Subsidiaries are in compliance with all Governmental Requirements applicable to it or its Property and all agreements and other instruments binding upon it or its Property, and possesses all licenses, permits, franchises, exemptions, approvals and other governmental authorizations necessary for the ownership of its Property and the conduct of its business, in each case except where the failure to do so, individually or in the aggregate, could not reasonably be expected to result in a Material Adverse Effect.

71

(b) Neither the Parent Guarantor, the Borrower nor any Restricted Subsidiaries are in default nor has any event or circumstance occurred which, but for the expiration of any applicable grace period or the giving of notice, or both, would constitute a default or would require the Parent Guarantor, the Borrower or any Restricted Subsidiaries to Redeem or make any offer to Redeem Debt under any indenture, note, credit agreement or instrument pursuant to which any Material Indebtedness is outstanding or by which the Parent Guarantor, the Borrower or any Restricted Subsidiaries or any of their Properties are bound.

(c) No Default has occurred and is continuing.

Section 7.08 Investment Company. Neither the Parent Guarantor, the Borrower nor any Restricted Subsidiary is an “investment company” or a company “controlled” by an “investment company,” within the meaning of, or subject to regulation under, the Investment Company Act of 1940, as amended.⁸⁶

Section 7.09 Taxes. The Parent Guarantor, the Borrower and the Restricted Subsidiaries have timely filed or caused to be filed all Tax returns and reports required to have been filed and has paid or caused to be paid all Taxes required to have been paid by it, except (a) Taxes that are being contested in good faith by appropriate proceedings and for which the Parent Guarantor, the Borrower or Restricted Subsidiary, as applicable, has set aside on its books adequate reserves in accordance with GAAP or (b) to the extent that the failure to do so could not reasonably be expected to result in a Material Adverse Effect. The charges, accruals and reserves on the books of the Parent Guarantor, the Borrower and the Restricted Subsidiaries in respect of Taxes and other governmental charges are, in the reasonable opinion of the Parent Guarantor and the Borrower, adequate. No Tax Lien has been filed and, to the knowledge of the Parent Guarantor and the Borrower, no claim is being asserted with respect to any such Tax or other such governmental charge.⁸⁷

Section 7.10 ERISA.⁸⁸

(a) The Parent Guarantor, the Borrower, the Restricted Subsidiaries and each ERISA Affiliate have complied in all material respects with ERISA and, where applicable, the Code regarding each Plan.

(b) Each Plan is, and has been, established and maintained in substantial compliance with its terms, ERISA and, where applicable, the Code.

(c) No act, omission or transaction has occurred which could result in imposition on the Parent Guarantor, the Borrower, any Restricted Subsidiary or any ERISA Affiliate (whether directly or indirectly) of (i) either a civil penalty assessed pursuant to subsections (c), (i), (l) or (m) of section 502 of ERISA or a tax imposed pursuant to Chapter 43 of Subtitle D of the Code or (ii) breach of fiduciary duty liability damages under section 409 of ERISA.

72

(d) Full payment when due has been made of all amounts which the Parent Guarantor, the Borrower, any Restricted Subsidiary or any ERISA Affiliate is required under the terms of each Plan or applicable law to have paid as contributions to such Plan as of the date hereof.

(e) Neither the Parent Guarantor, the Borrower, any Restricted Subsidiary nor any ERISA Affiliate sponsors, maintains, or contributes to an employee welfare benefit plan, as defined in section 3(1) of ERISA, including, without limitation, any such plan maintained to provide benefits to former employees of such entities, that may not be terminated by the Parent Guarantor, the Borrower, any Restricted Subsidiary or any ERISA Affiliate in its sole discretion at any time without any material liability.

(f) Neither the Parent Guarantor, the Borrower, any Restricted Subsidiary nor any ERISA Affiliate sponsors, maintains or contributes to, or has at any time in the six-year period preceding the date hereof sponsored, maintained or contributed to, any employee pension benefit plan, as defined in section 3(2) of ERISA, that is subject to Title IV of ERISA, section 302 of ERISA or section 412 of the Code.

Section 7.11 Disclosure; No Material Misstatement.

(a) The Parent Guarantor and the Borrower have disclosed to the Administrative Agent and the Lenders all agreements, instruments and corporate or other restrictions to which it, or any of its Restricted Subsidiaries is subject, and all other matters known to it, that, individually or in the aggregate, could reasonably be expected to result in a Material Adverse Effect. None of the other reports, financial statements, certificates or other information furnished by or on behalf of the Parent Guarantor, the Borrower or any Restricted Subsidiary to the Administrative Agent or any Lender or any of their Affiliates in connection with the negotiation of this Agreement or any other Loan Document or delivered hereunder or under any other Loan Document (as modified or supplemented by other information so furnished) contains any material misstatement of fact or omits to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that, with respect to projected financial information, the Parent Guarantor, and the Borrower represent only that such information was prepared in good faith based upon assumptions believed to be reasonable at the time. There is no fact peculiar to the Parent Guarantor, the Borrower or any Restricted Subsidiary which could reasonably be expected to have a Material Adverse Effect or in the future is reasonably likely to have a Material Adverse Effect and which has not been set forth in this Agreement or the Loan Documents or the other documents, certificates and statements furnished to the Administrative Agent or the Lenders by or on behalf of the Borrower or any Restricted Subsidiary prior to, or on, the date hereof in connection with the transactions contemplated hereby. There are no statements or conclusions in any Reserve Report which are based upon or include misleading information or fail to take into account material information regarding the matters reported therein, it being understood that projections concerning volumes attributable to the Oil and Gas Properties of the Parent Guarantor, the Borrower and the Restricted Subsidiaries and production and cost estimates contained in each Reserve Report are necessarily based upon professional opinions, estimates and projections and that the Parent Guarantor, the Borrower and the Restricted Subsidiaries do not warrant that such opinions, estimates and projections will ultimately prove to have been accurate.⁸⁹

73

(b) As of the Sixth Amendment Closing Date, the information included in the Beneficial Ownership Certification is true and correct in all respects.⁹⁰

Section 7.12 Insurance. The Parent Guarantor and the Borrower have, and have caused all of the Restricted Subsidiaries to have, (a) all insurance policies sufficient for the compliance by each of them with all material Governmental Requirements and all material agreements and (b) insurance coverage in at least amounts and against such risk (including, without limitation, public liability) that are usually insured against by companies similarly situated and engaged in the same or a similar business for the assets and operations of the Borrower and its Restricted Subsidiaries. The Administrative Agent and the Lenders have been named as additional insureds in respect of such liability insurance policies and the Administrative Agent has been named as loss payee with respect to Property loss insurance.⁹¹

Section 7.13 Restriction on Liens. Neither the Parent Guarantor, the Borrower nor any Restricted Subsidiary is a party to any material agreement or arrangement (other than as permitted by Section 9.16), or subject to any order, judgment, writ or decree, which either restricts or purports to restrict its ability to grant Liens to the Administrative Agent and the Lenders on or in respect of their Properties to secure the Indebtedness and the Loan Documents.⁹²

Section 7.14 Subsidiaries. Except as set forth on Schedule 7.14 or as disclosed in writing to the Administrative Agent (which shall promptly furnish a copy to the Lenders), which shall be a supplement to Schedule 7.14, the Parent Guarantor and the Borrower have no Subsidiaries. Schedule 7.14 (as updated with any written disclosures provided in writing to the Administrative Agent) identifies each Subsidiary as either Restricted or Unrestricted, and each Restricted Subsidiary on such schedule is a Wholly-Owned Subsidiary.⁹³

Section 7.15 Location of Business and Offices. The Parent Guarantor’s and the Borrower’s jurisdiction of organization is Delaware; the name of the Parent Guarantor as listed in the public records of its jurisdiction of organization is Diamondback Energy, Inc. and the organizational identification number of the Parent Guarantor in its jurisdiction of organization is 5088566; the name of the Borrower as listed in the public records of its jurisdiction of organization is Diamondback O&G LLC; and the organizational identification number of the Borrower in its jurisdiction of organization is 4459932. The Parent Guarantor’s and the Borrower’s principal place of business and chief executive offices are located at the address specified in Section 12.01 (or as set forth in a notice delivered pursuant to Section 8.01(l) and

74

Section 12.01(c)). Each Subsidiary’s jurisdiction of organization, name as listed in the public records of its jurisdiction of organization, organizational identification number in its jurisdiction of organization, and the location of its principal place of business and chief executive office is stated on Schedule 7.14 (or as set forth in a notice delivered pursuant to Section 8.01(l)).

Section 7.16 Properties, Titles, Etc.⁹⁴

(a) The Parent Guarantor, the Borrower and the Restricted Subsidiaries have good and defensible title to the Oil and Gas Properties evaluated in the most recently delivered Reserve Report and good title to all its personal Properties, in each case, free and clear of all Liens except Liens permitted by Section 9.03. After giving full effect to the Excepted Liens, the Parent Guarantor, the Borrower or the Restricted Subsidiary specified as the owner owns the net interests in production attributable to the Hydrocarbon Interests as reflected in the most recently delivered Reserve Report, and the ownership of such Properties shall not in any material respect obligate the Parent Guarantor, the Borrower or such Restricted Subsidiary to bear the costs and expenses relating to the maintenance, development and operations of each such Property in an amount in excess of the working interest of each Property set forth in the most recently delivered Reserve Report that is not offset by a corresponding proportionate increase in the Parent Guarantor’s, the Borrower’s or such Restricted Subsidiary’s net revenue interest in such Property.

(b) All material leases and agreements necessary for the conduct of the business of the Parent Guarantor, the Borrower and the Restricted Subsidiaries are valid and subsisting, in full force and effect, and there exists no default or event or circumstance which with the giving of notice or the passage of time or both would give rise to a default under any such lease or leases, which could reasonably be expected to have a Material Adverse Effect.

(c) The rights and Properties presently owned, leased or licensed by the Parent Guarantor, the Borrower and the Restricted Subsidiaries including, without limitation, all easements and rights of way, include all rights and Properties necessary to permit the Parent Guarantor, the Borrower and the Restricted Subsidiaries to conduct their business in all material respects in the same manner as its business has been conducted prior to the date hereof.

(d) All of the Properties of the Parent Guarantor, the Borrower and the Restricted Subsidiaries which are reasonably necessary for the operation of their businesses are in good working condition and are maintained in accordance with prudent business standards.

(e) The Parent Guarantor, the Borrower and the Restricted Subsidiaries own, or are licensed to use, all trademarks, tradenames, copyrights, patents and other intellectual Property material to its business, and the use thereof by the Parent Guarantor, the Borrower and the Restricted Subsidiaries does not infringe upon the rights of any other Person, except for any such infringements that, individually or in the aggregate, could not reasonably be expected to result in a Material Adverse Effect. The Parent Guarantor, the Borrower and the Restricted Subsidiaries either own or have valid licenses or other rights to use all databases, geological data,

75

geophysical data, engineering data, seismic data, maps, interpretations and other technical information used in their businesses as presently conducted, subject to the limitations contained in the agreements governing the use of the same, which limitations are customary for companies engaged in the business of the exploration and production of Hydrocarbons, with such exceptions as could not reasonably be expected to have a Material Adverse Effect.

Section 7.17 Maintenance of Property. Except for such acts or failures to act as could not be reasonably expected to have a Material Adverse Effect, the Oil and Gas Properties (and Properties unitized therewith) of the Parent Guarantor, the Borrower and the Restricted Subsidiaries have been maintained, operated and developed in a good and workmanlike manner and in conformity with all Governmental Requirements and in conformity with the provisions of all leases, subleases or other contracts comprising a part of the Hydrocarbon Interests and other contracts and agreements forming a part of the Oil and Gas Properties of the Parent Guarantor, the Borrower and the Restricted Subsidiaries. Specifically in connection with the foregoing, except for those as could not be reasonably expected to have a Material Adverse Effect, (a) no Oil and Gas Property of the Parent Guarantor, the Borrower or the Restricted Subsidiaries is subject to having allowable production reduced below the full and regular allowable (including the maximum permissible tolerance) because of any overproduction (whether or not the same was permissible at the time) and (b) none of the wells comprising a part of the Oil and Gas Properties (or Properties unitized therewith) of the Parent Guarantor, the Borrower or the Restricted Subsidiaries are deviated from the vertical more than the maximum permitted by Governmental Requirements, and such wells are, in fact, bottomed under and are producing from, and the well bores are wholly within, the Oil and Gas Properties (or in the case of wells located on Properties unitized therewith, such unitized Properties) of the Parent Guarantor, the Borrower or such Restricted Subsidiary. All pipelines, wells, gas processing plants, platforms and other material improvements, fixtures and equipment owned in whole or in part by the Parent Guarantor, the Borrower or any Restricted Subsidiary that are necessary to conduct normal operations are being maintained in a state adequate to conduct normal operations, and with respect to such of the foregoing which are operated by the Parent Guarantor, the Borrower or any Restricted Subsidiary, in a manner consistent with the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ past practices (other than those the failure of which to maintain in accordance with this Section 7.17 could not reasonably be expected to have a Material Adverse Effect).⁹⁵

Section 7.18 Gas Imbalances, Prepayments. Except as set forth on the most recent certificate delivered pursuant to Section 8.12(c), on a net basis there are no gas imbalances, take or pay or other prepayments which would require the Parent Guarantor, the Borrower or any Restricted Subsidiary to deliver Hydrocarbons produced from the Oil and Gas Properties at some future time without then or thereafter receiving full payment therefor exceeding 500,000 Mcf of gas (on an mcf equivalent basis) in the aggregate.⁹⁶Reserved.

76

Section 7.19 Marketing of Production. Except for contracts either listed on Schedule 7.19, disclosed in writing to the Administrative Agent or included in the most recently delivered Reserve Report (with respect to all of which contracts the Parent Guarantor and the Borrower represent that they or the Restricted Subsidiaries are receiving a price for all production sold thereunder which is computed substantially in accordance with the terms of the relevant contract and are not having deliveries curtailed substantially below the subject Property’s delivery capacity), no material agreements exist which are not cancelable on 60 days’ notice or less without penalty or detriment for the sale of production from the Parent Guarantor’s, the Borrower’s or the Restricted Subsidiaries’ Hydrocarbons (including, without limitation, calls on or other rights to purchase, production, whether or not the same are currently being exercised) that (a) pertain to the sale of production at a fixed price and (b) have a maturity or expiry date of longer than six (6) months from the date hereof.⁹⁷

Section 7.20 Swap Agreements. After the date hereof, each report required to be delivered by the Parent Guarantor and the Borrower pursuant to Section 8.01(d) sets forth a true and complete list of all Swap Agreements of the Parent Guarantor, the Borrower and each Restricted Subsidiary not listed on Schedule 7.20, the material terms thereof (including the type, term, effective date, termination date and notional amounts or volumes), the net mark to market value thereof, all credit support agreements relating thereto (including any margin required or supplied) and the counterparty to each such agreement.⁹⁸

Section 7.21 Use of Loans and Letters of Credit. The proceeds of the Loans and the Letters of Credit shall be used (a) to provide working capital for lease acquisitions, exploration, production operations and development (including the drilling and completion of producing wells) and (b) for general corporate purposes of the Borrower and the Guarantors. The Borrower and the Restricted Subsidiaries are not engaged principally, or as one of its or their important activities, in the business of extending credit for the purpose, whether immediate, incidental or ultimate, of buying or carrying margin stock (within the meaning of Regulation T, U or X of the Board). No part of the proceeds of any Loan or Letter of Credit will be used for any purpose which violates (a) the provisions of Regulations T, U or X of the Board, (b) U.S. sanctions administered by OFAC or the US Department of State or (c) the FCPA.⁹⁹

Section 7.22 Solvency. After giving effect to the transactions contemplated hereby, (a) the aggregate assets (after giving effect to amounts that could reasonably be received by reason of indemnity, offset, insurance or any similar arrangement), at a fair valuation, of the Parent Guarantor, the Borrower and the Restricted Subsidiaries, taken as a whole, will exceed the aggregate Debt of the Parent Guarantor, the Borrower and the Restricted Subsidiaries, taken as a whole, as the Debt becomes absolute and matures, (b) the Parent Guarantor and the Borrower will not have incurred or intended to incur, and will not believe that it will incur, Debt beyond its ability to pay such Debt (after taking into account the timing and amounts of cash to be received by it and the amounts to be payable on or in respect of its liabilities, and giving effect to amounts that could reasonably be received by reason of indemnity, offset, insurance or any similar arrangement) as such Debt becomes absolute and matures and (c) the Parent Guarantor and the Borrower will not have (and will have no reason to believe that it will have thereafter) unreasonably small capital for the conduct of its business.¹⁰⁰

77

Section 7.23 Foreign Corrupt Practices Act. Neither the Borrower nor any of the Subsidiaries, nor to the knowledge of the Borrower without independent investigation, any director, officer, agent, employee or Affiliate of the Borrower or any of the Subsidiaries is aware of or has taken any action, directly or indirectly, that would result in a material violation by such Persons of the FCPA, including without limitation, making use of the mails or any means or instrumentality of interstate commerce corruptly in furtherance of an offer, payment, promise to pay or authorization of the payment of any money, or other property, gift, promise to give, or authorization of the giving of anything of value to any “foreign official” (as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for foreign political office, in contravention of the FCPA; and, the Borrower, its Subsidiaries and to the knowledge of the Borrower without independent investigation, its and their Affiliates have conducted their business in material compliance with the FCPA and have instituted and maintain policies and procedures designed to ensure, and which are reasonably expected to continue to ensure, continued compliance therewith.¹⁰¹

Section 7.24 OFAC. Neither the Borrower nor any of the Subsidiaries, nor to the knowledge of the Borrower without independent investigation, any director, officer, agent, employee or Affiliate of the Borrower or any of the Subsidiaries is currently subject to any material U.S. sanctions administered by OFAC or the US Department of State, and the Borrower will not directly or indirectly use the proceeds from the Loans or lend, contribute or otherwise make available such proceeds to any Subsidiary, joint venture partner or other Person for the purpose of financing the activities of any Person currently subject to any U.S. sanctions administered by OFAC or the US Department of State.¹⁰²

Section 7.25 EEA Financial Institutions. Neither the Parent Guarantor nor any of itits Subsidiaries is an EEA Financial Institution.¹⁰³

ARTICLE VIII

Affirmative Covenants

Until the Commitments have expired or been terminated and the principal of and interest on each Loan and all fees payable hereunder and all other amounts payable under the Loan Documents shall have been paid in full and all Letters of Credit shall have expired or terminated and all LC Disbursements shall have been reimbursed, each of the Parent Guarantor and the Borrower covenants and agrees with the Lenders that: