Increase in Aggregate Commitment. (i) The Company may at any time propose that the Aggregate Commitment be increased (the amount of such increase being a “Commitment Increase”), effective as at a date prior to the Termination Date and at least 15 days after the Company proposes any such increase to the Agent in writing (an “Increase Date”) as to which agreement is to be reached by an earlier date specified in such notice (a “Commitment Date”); provided, however, that # the Company may not propose more than two Commitment Increases in any calendar year, # the Company may not propose more than five Commitment Increases pursuant to this Agreement, # the minimum proposed Commitment Increase per notice shall be ​, # in no event shall the Aggregate Commitment hereunder at any time exceed ​, and # no Default or Unmatured Default shall have occurred and be continuing on such Increase Date. The Agent shall notify ​ thereof promptly upon its receipt of any such notice. The Agent agrees that it will cooperate with the Company in discussions with ​ and other lending institutions with a view to arranging the proposed Commitment Increase through the increase of the Commitments of one or more of ​ (each such Lender that is willing to increase its Commitment hereunder being an “Increasing Lender”) and/or through Commitments provided by one or more Assuming ​; provided, however, that it shall be in each Lender’s sole discretion whether to increase its Commitment hereunder in connection with the proposed Commitment Increase; and provided further that the minimum Commitment of each Assuming Lender that becomes a party to this Agreement pursuant to this [Section 2.6(c)] shall be at least equal to ​. If agreement is reached on or prior to the applicable Commitment Date with any Increasing ​ and Assuming ​ as to a Commitment Increase (which may be less than but not greater than specified in the applicable notice from the Company), such agreement to be evidenced by a notice in reasonable detail from the Company to the Agent on or prior to the applicable Commitment Date, such Assuming ​, if any, shall become ​ hereunder as of the applicable Increase Date and the Commitments of such Increasing ​ and such Assuming ​ shall become or be, as the case may be, as of the Increase Date, the amounts specified in such notice; provided that:

Increase of Aggregate Commitment. The Company at its option may, from time to time, seek to # request one or more term loans (each an “Incremental Term Loan” and, collectively, the “Incremental Term Loans”) and/or # increase the Aggregate Revolving Commitment (each such increase, an “Incremental Revolving Commitment” and, together with the Incremental Term Loans, the “Incremental Facilities”) by up to an aggregate amount of ​for all Incremental Facilities after the Second Amendment Effective Date of ​ upon at least three (3) Business Days’ prior written notice to the Administrative Agent, which notice shall specify the amount of any such Incremental Facility (which shall not be less than ​) and shall certify that no Default or Unmatured Default has occurred and is continuing. After delivery of such notice, the Company, in consultation with the Administrative Agent, may offer the Incremental Facility (which may be declined by any Lender in its sole discretion) on either

Increase of Maximum Aggregate Commitment. [Section 2.7] is added following [Section 2.6] of the Repurchase Agreement and shall read as follows:

Effectiveness of Commitment Increase by Borrower. Each Assuming Lender, if any, shall become a Lender hereunder as of such Commitment Increase Date and the Commitment of the respective Class of any Increasing Lender and such Assuming Lender shall be increased as of such Commitment Increase Date; provided that:

Commitment. The Sponsor hereby commits to purchase equity securities of Holdco at or prior to the Effective Time for an aggregate amount of RMB equivalent to ​ (and the RMB equivalents of U.S. dollars shall be determined using the prevailing exchange rate notified by Parent to the Sponsor at least three (3) Business Days prior to funding), on the terms and subject to the conditions specified herein, which commitment, together with the commitments by the Other Sponsors under the Other Commitment Letters, is to be used by Holdco and/or Parent solely for the purpose of # funding a portion of the Merger Consideration required to be paid by Parent to consummate the Transactions pursuant to and in accordance with the Merger Agreement and # payment of a portion of the fees and expenses in connection with the Transaction (such commitment, the “Commitment”). The Sponsor will not have any obligation under any circumstances to contribute, directly or indirectly, any capital or money that would be more than the amount of the Commitment to Holdco, Parent, Merger Sub or any other person pursuant to the terms of this Agreement. In the event that Holdco and/or Parent does not require an amount equal to the sum of the Commitment plus the amount of the equity commitments of the Other Sponsors under the Other Commitment Letters in order to consummate the Merger, the amount of the Commitment to be funded under this Agreement and the amount of the equity commitment of each Other Sponsor to be funded under its respective Other Commitment Letter shall be reduced by Holdco on a pro rata basis, to the amount that would be sufficient, in combination with the other financing

Increase to ​ Aggregate Revolving Loan Commitment. Pursuant to [Section 2.23] of the Credit Agreement, the Company has requested an increase in the Aggregate 2019 Revolving Loan Commitment from ​ to ​, upon the effectiveness hereof. In connection with such requested Commitment Increase, the Company, the Administrative Agent and BNP Paribas (the “Accepting Lender”) hereby agree that upon the effectiveness hereof, the 2019 Revolving Loan Commitment of the Accepting Lender under the Credit Agreement shall be increased from ​ to ​. The Required Lenders hereby agree to waive the minimum amount and multiples requirements set forth in [Section 2.23(B)] of the Credit Agreement, and also agree that this Amendment shall be delivered in substitution for any Increase Notice and Commitment and Acceptance required by [Section 2.23] of the Credit Agreement (after giving effect to this Amendment).

Commitment Fee. Commencing on the Closing Date, subject to [Section 5.15(a)(iii)(A)], the Borrower shall pay to the Administrative Agent, for the account of the Revolving Credit Lenders, a non-refundable commitment fee (the “Commitment Fee”) in Dollars at a rate per annum equal to the Applicable Margin on the average daily unused portion of the Revolving Credit Commitment of the Revolving Credit Lenders (other than the Defaulting Lenders, if any); provided, that the amount of outstanding Swingline Loans shall not be considered usage of the Revolving Credit Commitment for the purpose of calculating the Commitment Fee. The Commitment Fee shall be payable in arrears within fifteen (15) days after the last day of each calendar quarter during the term of this Agreement commencing ​ and ending on the date upon which all Obligations (other than contingent indemnification obligations not then due) arising under the Revolving Credit Facility shall have been indefeasibly and irrevocably paid and satisfied in full, all Letters of Credit have been terminated or expired and the Revolving Credit Commitment has been terminated. The Commitment Fee shall be distributed by the Administrative Agent to the Revolving Credit Lenders pro rata in accordance with such Revolving Credit Lenders’ respective Revolving Credit Commitment Percentages.

Commitment Fee. At the Closing, Borrower shall pay to ​ (or Agent for the benefit of ​) a commitment fee in the amount of ​ (the “Initial Commitment Fee”) which Agent shall be permitted to deduct from the initial Loan. On Funding Date of the Loan made under an Additional Commitment, Borrower shall pay to ​ (or Agent for the benefit of ​) a commitment fee for such Loan in an amount equal to the principal amount of such Loan multiplied by 0.90% (the “Additional Commitment Fee”) which Agent shall be permitted to deduct from such Loan. The Initial Commitment Fee and the Additional Commitment Fee are fully earned upon payment.

Commitment Fees. Borrower agrees to pay to Administrative Agent for the account of each Lender in accordance, subject to [Section 12.22], with its relevant Applicable

Revolver Commitment. Bank agrees, upon the terms and subject to the conditions hereinafter set forth, to make revolving loan advances (the "Revolver Loan") to Borrowers from the Closing Date until the Revolver Final Maturity Date, or until such later date as Bank shall have extended its Revolver Commitment in writing unless the Revolver Commitment shall be sooner terminated pursuant to the provisions of this Agreement, in such amounts as may from time to time be requested by Borrowers for payment of their existing secured indebtedness, development of oil and gas reserves, working capital needs, capital expenditures of Borrowers and for the issuance of standby letters of credit. In no event shall the aggregate unpaid principal amount of the Revolver Loan advanced, outstanding and unpaid at any time under the Revolver Note plus the amount of the requested Revolver Loan advance plus the amount of Letter of Credit Exposure at any time exceed the lesser of # the Collateral Borrowing Base (as calculated in accordance with the provisions of [Article V] of this Agreement) or # the Revolver Commitment Amount, notwithstanding the face principal amount of the Revolver Note from time to time.

The definition of the Commitment Period as set forth in ​ (Definitions) of the Agreement shall be deleted and replaced in its entirety by the following definition:

Commitment Fee. The Company and the Borrowing Subsidiaries hereby jointly and severally agree to pay to the Agent for the account of ​, ratably in proportion to their Commitments, a commitment fee (the “Commitment Fee”) at a rate per annum equal to the Applicable Commitment Fee Rate on the daily average unused amount of the Commitments, which fee shall be payable in arrears on the third Business Day following the last day of March, June, September and December of each year commencing on ​ and with a final payment due and payable on the Termination Date. For the purposes of determining the amount of the Commitment Fee, outstanding Competitive Bid Loans shall be deemed not to be a usage of the Commitments.

Title Commitment. Within seven (7) days after the Effective Date, Seller, at its expense, shall order and deliver to Buyer a title commitment for the Property in the amount of the Purchase Price from Escrow Agent and obtain a copy of all documents which constitute exceptions to the title commitment. Buyer shall give Seller written notice within twenty (20) days following receipt of the Title Commitment of any condition of title (exceptions or requirements) that is not satisfactory to Buyer. Seller may, but shall not be obligated, to resolve such matters; provided, however, that mortgage liens may be resolved at closing. If Seller is unable or unwilling to resolve such matters before the expiration of the Inspection Period as defined above, then Buyer may, at Buyer’s sole option, either # accept title subject to the objections raised by Buyer and such accepted objections shall become Permitted Exceptions (“Permitted Exceptions”) without any adjustment in the Purchase Price, or # terminate this Agreement prior to the expiration of the Inspection Period pursuant to Paragraph 4 above, whereupon the earnest monies shall be immediately returned to Buyer by Escrow Agent, or # work with Seller, if mutually agreeable, to satisfy unacceptable matters and postpone the end of the Inspection Period and/or Closing Date to satisfy these matters. At Closing, Seller shall provide Buyer with an owner’s policy of title insurance in the amount of the Purchase Price. Seller shall pay the cost for the basic cost of the owner’s policy of title insurance, and Buyer shall pay the cost for all endorsements, changes, and modifications to the owner’s policy of title insurance.

Commitment Fee. In consideration of the Commitment, the Company agrees to pay to CoBank a commitment fee on the average daily unused available portion of the Commitment at the rate of 0.250% per annum (calculated on a 360-day basis), payable quarterly in arrears by the 20th day following each calendar quarter. Such fee will be payable for each quarter (or portion thereof) occurring during the original or any extended term of the Commitment.

The time commitment is anticipated to amount to approximately 3 full day Board meetings p.a. and the related preparatory work, with the possibility of additional Board meetings to address significant matters as they arise.

Time Commitment. During the Term, ​ shall # dedicate that amount of his business time and attention that he deems reasonably necessary to the performance of the services hereunder (not to exceed 30 hours per month), # perform the services at such locations as he reasonably deems appropriate, # use his reasonable best efforts to promote the best interests of the Company, and # perform the services professionally and consistent with the applicable performance standards of the Company. Notwithstanding the foregoing, the Company and ​ shall use their reasonable best efforts to ensure that the level of ​' services under this Agreement shall not exceed 20% of the average level of services ​ performed over the 36-month period immediately preceding the Effective Date, consistent with the intent that ​' termination of employment with the Company constitutes a "separation from service" (within the meaning of Section 409A of the Internal Revenue Code of 1986, as amended (the "Code")).