EXHIBIT 10.1

EXECUTION VERSION

FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT

     This FIRST AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT
(hereinafter referred to as the “Amendment”) executed as of the 6th day of
December, 2004, by and among RANGE RESOURCES CORPORATION, a Delaware corporation
(“Company”), GREAT LAKES ENERGY PARTNERS, L.L.C., a Delaware limited liability
company (“GLEP”, together with the Company and each of their respective
successors and permitted assigns, the “Borrowers” and each a “Borrower”),
JPMORGAN CHASE BANK, N.A. (successor by merger to Bank One, N.A. (Illinois)), a
national banking association (“JPMorgan Chase”), each of the financial
institutions which is a party hereto (as evidenced by the signature pages to
this Amendment) or which may from time to time become a party to the Credit
Agreement pursuant to the provisions of Section 29 thereof or any successor or
permitted assignee thereof (hereinafter collectively referred to as “Lenders”,
and individually, “Lender”), JPMorgan Chase, as Administrative Agent (in its
capacity as Administrative Agent and together with its successors in such
capacity, “Agent”). Capitalized terms used but not defined in this Amendment
have the meanings assigned to such terms in that certain Second Amended and
Restated Credit Agreement dated as of June 23, 2004, by and among Borrower,
Agent and Lenders (as amended, supplemented or otherwise modified from time to
time, the “Credit Agreement”).

WITNESSETH:

     WHEREAS, the Company has entered into that certain Stock Purchase
Agreement, dated November 22, 2004, with First Reserve Fund, IX, L.P., a
Delaware limited partnership, Robertson Investment Trust LLC, a Delaware limited
liability company, Donald E. Vandenberg, Richard M. Brillhart, Jeremy H.
Grantham and Charles Ian Landon (the “Stock Purchase Agreement”) pursuant to
which the Company intends to acquire all of the issued and outstanding capital
stock of PMOG Holdings, Inc., a Delaware corporation (“PMOG”) (the “Pine
Mountain Acquisition”);

     WHEREAS, to facilitate the Pine Mountain Acquisition, the Borrowers have
requested that the Agent and the Lenders consent to the Company’s consummation
of the Pine Mountain Acquisition and amend the Credit Agreement to (i) increase
the Borrowing Base to $575,000,000 and (ii) permit the incurrence by the Company
of up to $75,000,000 in aggregate principal amount of additional Senior
Subordinated Notes; and Agent and the Lenders have agreed to do so on the terms
and conditions hereinafter set forth; and

     WHEREAS, certain of the Lenders desire to reallocate their Commitments
under the Credit Agreement.

     NOW, THEREFORE, for and in consideration of the mutual covenants and
agreements herein contained and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged and confessed, the
Borrowers, Agent and the Lenders, hereby agree as follows:

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SECTION 1. Amendments to Credit Agreement. Subject to the satisfaction or waiver
in writing of each condition precedent set forth in Section 6 hereof, and in
reliance on the representations, warranties, covenants and agreements contained
in this Amendment, the Credit Agreement shall be amended in the manner provided
in this Section 1.

     1.1 Additional Definitions. The following definitions shall be and they
hereby are added in appropriate alphabetical order to Section 1 of the Credit
Agreement.

First Amendment means that certain First Amendment to Second Amended and
Restated Credit Agreement, dated December 6, 2004, by and among the Borrowers,
Agent and the Lenders.

First Amendment Effective Date means the date the First Amendment becomes
effective.

Pine Mountain Acquisition means the acquisition by the Company of all of the
issued and outstanding Capital Stock of PMOC Holdings, Inc., a Delaware
corporation, pursuant to that certain Stock Purchase Agreement, dated
November 22, 2004, with First Reserve Fund, IX, L.P., a Delaware limited
partnership, Robertson Investment Trust LLC, a Delaware limited liability
company, Donald E. Vandenberg, Richard M. Brillhart, Jeremy H. Grantham and
Charles Ian Landon.

Pine Mountain Acquisition Date means the date the Pine Mountain Acquisition is
consummated in accordance with and subject to the terms and conditions set forth
in the First Amendment.

     1.2 Amendment to Borrowing Base. Section 7(a) of the Credit Agreement shall
be and it hereby is amended in its entirety to read as follows:

     (a) Borrowing Base. Subject to Section 7(b) hereof, from the Closing Date
through but excluding the Pine Mountain Acquisition Date, the Borrowing Base
shall be $500,000,000 and as of the Pine Mountain Acquisition Date, the
Borrowing Base shall be $575,000,000.

     1.3 Additional Senior Subordinated Notes. Clause (vii) of Section 13(e) of
the Credit Agreement shall be and it hereby is amended in its entirety to read
as follows:

     (vii) The Senior Subordinated Notes; provided, that (a) the aggregate
principal amount of such Debt does not exceed $275,000,000 at any time, (b) such
Debt is incurred on prior to April 1, 2005, and (c) with respect to any such
Debt incurred after the First Amendment Effective Date, the aggregate principal
amount of such Debt does not exceed the aggregate amount of cash proceeds
received by the Company from the sale of common stock of the Company (other than
Disqualified Stock) after the First Amendment Effective Date.

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     1.4 Patriot Act. Section 36 of the Credit Agreement shall be and it is
hereby amended in its entirety to read as follows:

     36. USA PATRIOT ACT. Each Lender hereby notifies each Borrower that
pursuant to the requirements of the USA Patriot Act (Title III of Pub. L. 107-56
(signed into law October 26, 2001)) (the “Act”), it is required to obtain,
verify and record information that identifies such Borrower, which information
includes the name and address of such Borrower and other information that will
allow such Lender to identify such Borrower in accordance with the Act.”

     1.5 Reallocation of Commitments. The Lenders have agreed to reallocate
their respective Commitments as of the Pine Mountain Acquisition Date and to
facilitate such reallocation each Lender that is reducing its Commitment
Percentage (each a “Reducing Lender”) shall be deemed to have assigned a portion
of its Commitment and its Loans to each Lender that is increasing its Commitment
Percentage (each an “Increasing Lender”) to the extent necessary to cause each
Lender to have the Commitment Percentages set forth on Annex A attached hereto
as of the Pine Mountain Acquisition Date. After giving effect to such
reallocation of the Commitments and the Loans, on the Pine Mountain Acquisition
Date each Lender shall have the Commitment Percentage set forth on Annex A
attached hereto. With respect to such reallocation, each Increasing Lender shall
be deemed to have acquired the increase in the Commitments and Loans allocated
to them from the Reducing Lenders pursuant to the terms of the Assignment and
Acceptance Agreement attached as Exhibit “E” to the Credit Agreement as if each
Increasing Lender and Reducing Lender had executed an Assignment and Acceptance
Agreement with respect to such change in its allocation. Each Increasing Lender
and each Reducing Lender shall surrender its existing Note and each such Lender
shall be issued a new Note in a face amount equal to such Lender’s Commitment
Percentage times $600,000,000. Each Note shall be in the form of Exhibit “B” to
the Credit Agreement with appropriate insertions. On the Pine Mountain
Acquisition Date each Increasing Lender shall deliver to the Agent the funds
necessary to acquire such Increasing Lender’s additional interest in the
Commitments and the Loans such that after giving effect to such allocation and
delivery of funds each Lender’s Commitment Percentage shall be as set forth on
Annex A attached hereto and each Lender’s portion of the then outstanding Loans
and its participation in each then outstanding Letter of Credit shall be
consistent with such Commitment Percentage.

     1.6 Replacement of Annex A. Effective as of the Pine Mountain Acquisition
Date, Annex A to the Credit Agreement shall be and it hereby is replaced with
Annex A attached hereto.

SECTION 2. Consent to Pine Mountain Acquisition. Effective as of the First
Amendment Effective Date, each Lender hereby consents to the Pine Mountain
Acquisition, subject to the satisfaction of each of the following conditions:

     (i) such acquisition is consummated substantially on the terms set forth in
the Stock Purchase Agreement without waiver or amendment of any material term
thereof other than any such waiver or amendment approved by the Agent and
Required Lenders;

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     (ii) true and complete copies of the Stock Purchase Agreement are provided
to the Agent prior to the consummation of such acquisition and true and complete
copies of any other documents, instruments or certificates (including side
letter agreements) executed in connection the consummation of such acquisition
are delivered to the Agent within thirty days after such consummation (or such
later date approved by the Agent);

     (iii) contemporaneous with the consummation of such acquisition, the
Company shall cause Pine Mountain Oil and Gas, Inc., a Delaware corporation
(“Pine Mountain”) and any other Person that becomes a Material Domestic
Subsidiary as a result of the consummation of such acquisition, to execute and
deliver to Agent a Guaranty and deliver to Agent (a) an executed officers
certificate certifying the names of the officers of each such Person authorized
to sign Loan Documents on behalf of such Person, together with the true
signatures of each such officer, (b) evidence of the existence and good standing
for each such Person in its jurisdiction of incorporation or formation, as the
case may be, and evidence of its qualification in each other jurisdiction in
which its failure to be qualified could reasonably be expected to have a
Material Adverse Effect, (c) copies of the Organizational Documents for each
such Person together with all amendments thereto, appropriately certified by
governmental authority in the jurisdiction of incorporation or formation of each
such Person or one or more officers of each such Person, as the case may be, as
being true, correct and complete, (d) fully executed pledge agreements covering
all of the issued and outstanding Capital Stock of each such Person in form and
substance satisfactory to the Agent from each owner and holder of the Capital
Stock of such Person and (e) evidence satisfactory to the Agent of the
compliance by the Borrowers and each such Person of their obligations under the
pledge agreements and the other Security Instruments required under Section 6 of
the Credit Agreement (including, without limitation, their obligations to
execute and deliver UCC financing statements, originals of securities or
instruments as provided therein);

     (iv) prior to the consummation of such acquisition, the receipt by Agent or
its special counsel of title opinions and other title information reasonably
satisfactory to the Agent demonstrating that Pine Mountain holds good and
defensible title to a substantial portion of the value of its Oil and Gas
Properties;

     (v) contemporaneous with the consummation of such acquisition, the
repayment in full of all obligations, Debt and liabilities accrued and
outstanding under the that certain Credit Agreement among Pine Mountain, as
borrower, Natexis Banques Populaires, as administrative agent and issuing lender
and the lenders party thereto from time to time, dated August 13, 2003 (as
amended, the “Existing Credit Agreement”) as of the closing date of such
acquisition, including, without limitation, (i) the entire outstanding principal
balance of the loans and advances made (and as defined) thereunder, (ii) all
accrued but unpaid interest, and (iii) all accrued but unpaid commitment and
other fees, (f) the cancellation (or replacement) of all outstanding letters of
credit issued pursuant to the Existing Credit Agreement;

     (vi) the termination and release of the mortgages, security interests and
all other Liens securing the obligations, Debt and liabilities of PMOG Holdings
or any of its

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Subsidiaries under the Existing Credit Agreement (including, without limitation,
the delivery of UCC-3 releases with respect to all uniform commercial code
filings made under or pursuant to the Existing Credit Agreement), and the
delivery to the Company of all original certificates and stock powers pledged
and delivered by PMOG Holdings and its Subsidiaries pursuant to the terms of the
Existing Credit Agreement as security for Pine Mountain’s obligations
thereunder;

     (vii) the release of all guarantees of the obligations, Debt and
liabilities of PMOG Holdings or any of its Subsidiaries under the Existing
Credit Agreement, (i) the termination of the Existing Credit Agreement, and the
delivery to the Company of (or the written commitment of the holders thereof to
promptly deliver after the Closing Date) each original promissory note issued
under the Existing Credit Agreement marked “Terminated and Paid in Full”; and

     (viii) the assignment or termination of any hedging transactions and
agreements to which PMOG Holdings or any of its Subsidiaries are a party on
terms and conditions satisfactory to the Agent.

SECTION 3. Consent to Indenture Amendment. Effective as of the First Amendment
Effective Date and subject to the conditions set forth in this Section 3, each
Lender hereby consents to the amendment of the Indenture to extent, and only to
the extent necessary to permit the aggregate principal amount of Senior
Subordinated Notes issued under such Indenture to be increased by $75,000,000;
provided that the Company complies with Section 13(e)(vii) of the Credit
Agreement with respect to any Debt incurred as a result of the issuance of any
such additional Senior Subordinated Notes.

SECTION 4. Borrowing Base Increase Fee. On or before the Pine Mountain
Acquisition Date, the Borrowers, jointly and severally, agree to pay to the
Agent, for the benefit of the Lenders, a Borrowing Base increase fee in the
amount of $187,500.00 as a result of the increase in the Borrowing Base
contemplated by this Amendment. Each Lender shall receive a portion of such fee
equal to $187,500.00 multiplied by a fraction (x) the numerator of which is the
amount of the net increase in such Lender’s Commitment as a result of such
increase in the Borrowing Base after giving affect to the adjustments in the
Commitments and the Loans required by Section 1.5 hereof and (y) the denominator
of which is $75,000,000.

SECTION 5. Additional Collateral. In connection with the Pine Mountain
Acquisition, the Borrowers shall, and shall cause each Guarantor, to take all
actions and provide all information necessary to confirm compliance with Section
12(v) of the Credit Agreement after giving effect to the increase in the
Borrowing Base pursuant to Section 1.2 of this Amendment.

SECTION 6. Conditions. The amendments to the Credit Agreement contained in
Section 1 of this Amendment and the consents set forth in Section 2 and
Section 3 of this Amendment shall be effective upon the satisfaction of each of
the conditions set forth in this Section 6.

     6.1 Execution and Delivery. Each Borrower and each Guarantor shall have
executed and delivered this Amendment.

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     6.2 Representations and Warranties. The representations and warranties of
each Borrower under this Amendment are true and correct in all material respects
as of such date, as if then made (except to the extent that such representations
and warranties relate solely to an earlier date).

     6.3 No Event of Default. No Event of Default shall have occurred and be
continuing nor shall any event have occurred or failed to occur which, with the
passage of time or service of notice, or both, would constitute an Event of
Default.

     6.4 Other Documents. The Agent shall have received such other instruments
and documents incidental and appropriate to the transaction provided for herein
as the Agent or its special counsel may reasonably request, and all such
documents shall be in form and substance satisfactory to the Agent.

     6.5 Legal Matters Satisfactory. All legal matters incident to the
consummation of the transactions contemplated hereby shall be reasonably
satisfactory to special counsel for the Agent retained at the expense of the
Borrowers.

SECTION 7. Representations and Warranties of Borrowers. To induce the Lenders to
enter into this Amendment, the Borrowers hereby represent and warrant to the
Lenders as follows:

     7.1 Reaffirmation of Representations and Warranties/Further Assurances.
After giving effect to the amendments herein, each representation and warranty
of any Borrower or any Guarantor contained in the Credit Agreement or in any of
the other Loan Documents is true and correct in all material respects on the
date hereof (except to the extent such representations and warranties relate
solely to an earlier date).

     7.2 Corporate Authority; No Conflicts. The execution, delivery and
performance by each Borrower and each Guarantor (to the extent a party hereto or
thereto) of this Amendment and all documents, instruments and agreements
contemplated herein are within each such Borrower’s or such Guarantor’s
corporate or other organizational powers, have been duly authorized by necessary
action, require no action by or in respect of, or filing with, any court or
agency of government and do not violate or constitute a default under any
provision of any applicable law or other agreements binding upon any Borrower or
any Guarantor or result in the creation or imposition of any Lien upon any of
the assets of any Borrower or any Guarantor except for Permitted Liens and
otherwise as permitted in the Credit Agreement.

     7.3 Enforceability. This Amendment constitutes the valid and binding
obligation of each Borrower and each Guarantor enforceable in accordance with
its terms, except as (i) the enforceability thereof may be limited by
bankruptcy, insolvency or similar laws affecting creditor’s rights generally,
and (ii) the availability of equitable remedies may be limited by equitable
principles of general application.

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SECTION 8. Miscellaneous.

     8.1 Reaffirmation of Loan Documents and Liens. Any and all of the terms and
provisions of the Credit Agreement and the Loan Documents shall, except as
amended and modified hereby, remain in full force and effect. Each Borrower
hereby agrees that the amendments and modifications herein contained shall in no
manner affect or impair the liabilities, duties and obligations of such Borrower
or any Guarantor under the Credit Agreement and the other Loan Documents or the
Liens securing the payment and performance thereof.

     8.2 Parties in Interest. All of the terms and provisions of this Amendment
shall bind and inure to the benefit of the parties hereto and their respective
successors and assigns.

     8.3 Legal Expenses. The Borrowers hereby agree, jointly and severally, to
pay all reasonable fees and expenses of special counsel to the Agent incurred by
the Agent in connection with the preparation, negotiation and execution of this
Amendment and all related documents.

     8.4 Counterparts. This Amendment may be executed in one or more
counterparts and by different parties hereto in separate counterparts each of
which when so executed and delivered shall be deemed an original, but all such
counterparts together shall constitute but one and the same instrument;
signature pages may be detached from multiple separate counterparts and attached
to a single counterpart so that all signature pages are physically attached to
the same document. However, this Amendment shall bind no party until the
Borrowers, the Lenders, and the Agent have executed a counterpart. Delivery of
photocopies of the signature pages to this Amendment by facsimile or electronic
mail shall be effective as delivery of manually executed counterparts of this
Amendment.

     8.5 Complete Agreement. THIS AMENDMENT, THE CREDIT AGREEMENT, AND THE OTHER
LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR ORAL AGREEMENTS OF THE
PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

     8.6 Headings. The headings, captions and arrangements used in this
Amendment are, unless specified otherwise, for convenience only and shall not be
deemed to limit, amplify or modify the terms of this Amendment, nor affect the
meaning thereof.

[Signature Pages Follow]

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     IN WITNESS WHEREOF, the parties have caused this First Amendment to Amended
and Restated Credit Agreement to be duly executed as of the date first above
written.

         
 
  BORROWER:
 
       
 
  RANGE RESOURCES CORPORATION

 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

  Title:   Senior Vice President
 
       
 
  GREAT LAKES ENERGY PARTNERS, L.L.C.

 
  a Delaware limited liability company
 
       

  By:   Range Holdco, Inc.

      Its member
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

  Title:   Senior Vice President
 
       

  By:   Range Energy I, Inc.

      Its member
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

  Title:   Senior Vice President

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            LENDERS:

JPMORGAN CHASE BANK, N.A.,
formerly known as JPMorgan Chase Bank and
(successor by merger to Bank One, N.A. (Illinois))

 
      By:   /s/ Wm. Mark Cranmer         Name:   Wm. Mark Cranmer       
Title:   Vice President     

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  BANK OF SCOTLAND
 
       

  By:   /s/ Karen Weich

     

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  Name:   Karen Weich

     

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  Title:   Assistant Vice President

     

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  CALYON NEW YORK BRANCH
 
       

  By:   /s/ Olivier Audemand

     

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  Name:   Olivier Audemand

     

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  Title:   Managing Directors

     

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  By:   /s/ Philippe Soustra

     

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  Name:   PHILIPPE SOUSTRA

     

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  Title:   EXECUTIVE VICE PRESIDENT

     

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  COMPASS BANK
 
       

  By:   /s/ John M. Falbo

     

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  Name:   John M. Falbo

     

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  Title:   Senior Vice President

     

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  FLEET NATIONAL BANK
 
       

  By:   /s/ Jeffrey H. Rothkamp

     

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  Name:   Jeffrey H. Rothkamp

     

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  Title:   Director

     

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  FORTIS CAPITAL CORP.
 
       

  By:   /s/ Christopher S. Parada

     

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  Name:   Christopher S. Parada

     

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  Title:   Vice President

     

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  By:   /s/ Darrell W. Holley

     

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  Name:   Darrell W. Holley

     

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  Title:   Managing Director

     

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  NATEXIS BANQUES POPULAIRES
 
       

  By:   /s/ Donovan C. Broussard

     

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    Donovan C. Broussard

     

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    Vice President & Manager

       
 
       

  By:   /s/ Daniel Payer

     

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      Daniel Payer
Vice President

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  COMERICA BANK
 
  (successor by merger with
 
  Comerica Bank-Texas)
 
       

  By:   /s/ Michele L. Jones

     

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  Name:   Michele L. Jones

     

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  Title:   Senior Vice President — Texas Division

     

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  HIBERNIA NATIONAL BANK
 
       

  By:   /s/ Daria Mahoney

     

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  Name:   Daria Mahoney

     

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  Title:   Vice President

     

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  SOUTHWEST BANK OF TEXAS, N.A.
 
       

  By:   /s/ W. Bryan Chapman

     

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  Name:   W. Bryan Chapman

     

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  Title:   Senior Vice President

     

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  HARRIS NESBITT FINANCING, INC.
 
       

  By:   /s/ James V. Ducote

     

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  Name:   James V. Ducote

     

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  Title:   Vice President

     

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  KEY BANK
 
       

  By:   /s/ Thomas Rajan

     

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  Name:   Thomas Rajan

     

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  Title:   Vice President

     

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  WACHOVIA BANK, NATIONAL ASSOCIATION
 
       

  By:   /s/ Philip Trinder

     

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  Name:   Philip Trinder

     

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  Title:   Vice President

     

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  UNION BANK OF CALIFORNIA, N.A.
 
       

  By:   /s/ Kimberly Coil

     

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  Name:   Kimberly Coil

     

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  Title:   Assistant Vice President

     

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  By:   /s/ John Clark

     

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  Name:   John Clark

     

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  Title:   Vice President

     

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  THE BANK OF NOVA SCOTIA
 
       

  By:   /s/ Vicky Gibson

     

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  Name:   Vicky Gibson

     

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  Title:   Assistant Agent

     

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  THE FROST NATIONAL BANK
 
       

  By:   /s/ John S. Warren

     

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  Name:   John S. Warren

     

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  Title:   Senior Vice President

     

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  AGENT:
 
       
 
  JPMORGAN CHASE BANK, N.A.,
 
  (successor by merger to Bank One, N.A. (Illinois))
 
       

  By:   /s/ Wm. Mark Cranmer

     

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  Name:   Wm. Mark Cranmer

     

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  Title:   Vice President

     

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CONSENT AND REAFFIRMATION

     The undersigned (each a “Guarantor”) hereby (i) acknowledges receipt of a
copy of the foregoing First Amendment to Second Amended and Restated Credit
Agreement (the “First Amendment”); (ii) consents to Borrower’s execution and
delivery thereof; (iii) agrees to be bound thereby; (iv) affirms that nothing
contained therein shall modify in any respect whatsoever its guaranty of the
obligations of the Borrower to Lenders pursuant to the terms of its Guaranty in
favor of Agent and the Lenders (the “Guaranty”) and (v) reaffirms that the
Guaranty is and shall continue to remain in full force and effect. Although
Guarantor has been informed of the matters set forth herein and has acknowledged
and agreed to same, Guarantor understands that the Lenders have no obligation to
inform Guarantor of such matters in the future or to seek Guarantor’s
acknowledgment or agreement to future amendments or waivers, and nothing herein
shall create such duty.

     IN WITNESS WHEREOF, the undersigned has executed this Consent and
Reaffirmation on and as of the date of the First Amendment.

         
 
  GUARANTORS:
 
       
 
  RANGE ENERGY I, INC.
 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  RANGE HOLDCO, INC.
 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  RANGE PRODUCTION COMPANY

 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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First Amendment to Second Amended and Restated Credit Agreement — Signature Page

 

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  RANGE ENERGY VENTURES

 
  CORPORATION, a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  GULFSTAR ENERGY, INC.

 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  RANGE ENERGY FINANCE CORPORATION

 
  a Delaware corporation
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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First Amendment to Second Amended and Restated Credit Agreement — Signature Page

 

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  RANGE PRODUCTION I, L.P.

 
  a Texas limited partnership
 
       
 
  By: RANGE PRODUCTION COMPANY
       Its general partner
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  RANGE RESOURCES, L.L.C.
 
  a Oklahoma limited liability company
 
       
 
  By: RANGE PRODUCTION COMPANY
       Its member
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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  By: RANGE HOLDCO, INC.
       Its member
 
       

  By:   /s/ Roger S. Manny

     

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  Name:   Roger S. Manny

     

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  Title:   Senior Vice President

     

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First Amendment to Second Amended and Restated Credit Agreement — Signature Page

 

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ANNEX A

COMMITMENT PERCENTAGES

      LENDER

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  COMMITMENT PERCENTAGE

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JPMorgan Chase Bank, NA

  8.17394%
1 Bank One Plaza
Mail Code IL1-0634
Chicago, Illinois 60670-0634
Attention: Jim Moore
Telephone: (312) 385-7057
Facsimile: (312) 385-7096
   
 
   
Bank of Scotland

  8.17391%
565 Fifth Avenue
New York, New York 10017
Attention: Ms. Shirley Vargas
Telephone: (212) 450-0875
Facsimile: (212) 479-2807

   
 
   
Compass Bank

  4.34783%
24 Greenway Plaza, Suite 1400
Houston, Texas 77046
Attention: Ellan Watkins
Telephone: (713) 968-8279
Facsimile: (713) 968-8292
   
 
   
Calyon New York Branch
  8.17391%
1301 Avenue of the Americas
New York, New York 10019
Attention: Gener David
Telephone: (212) 261-7741
Facsimile: (917) 849-5440
   
 
   
Fleet National Bank

  8.17391%
100 Federal Street, MA DE 10008A
Boston, Massachusetts 02110
Attention: Jeffrey Rathkamp
Telephone: (617) 434-9061
Facsimile: (617) 434-3652
   

First Amendment to Second Amended and Restated Credit Agreement — Allocations

 

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Fortis Capital Corp.

  8.17391%
15455 North Dallas Parkway,
Suite 1400
Addison, Texas 75001
Attention: Frank Campanelli
Telephone: (203) 705-5898
Facsimile: (203) 705-5888
   
 
   
Natexis Banques Populaires

  4.34783%
Southwest Representative Office
333 Clay Street, Suite 4340
Houston, Texas 77002
Attention: Tanya McAllister
Telephone: (713) 759-9409
Facsimile: (713) 571-6165
   
 
   
Comerica Bank

  7.39130%
1601 Elm Street, 2nd Floor
Dallas, Texas 75201
Attention: Michele Jones with a copy to Cathy Watson
Telephone: (214) 969-6564
Facsimile: (214) 969-6561
   
 
   
Hibernia National Bank

  2.60870%
313 Carondelet Street, 10th Floor
New Orleans, Louisiana 70130
Attention: Joyce Baker
Telephone: (504) 533-5352
Facsimile: (504)533-5434
   
 
   
Southwest Bank of Texas, N.A.

  3.47826%
4295 San Felipe
Houston, Texas 77027
Attention: Maxine Hunter
Telephone: (713) 232-6355
Facsimile: (713) 963-7467
   
 
   
Harris Nesbitt Financing, Inc.

  7.39130%
115 S. LaSalle Streeet
Chicago, Illinois 60603
Attention: Terri Mikula
Telephone: (312) 750-5947
Facsimile: (312)750-6061
   

First Amendment to Second Amended and Restated Credit Agreement — Allocations

 

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Key Bank

  5.65217%
127 Public Square
Cleveland, Ohio 44114
Attention: Anita Anders
Telephone: (216) 689-4561
Facsimile: (216) 689-5962
   
 
   
Wachovia Bank, National Association

  5.65217%
201 S. College, CP-9
Charlotte, NC 28288
Attention: Cynthia Rawson
Telephone: (704) 374-4425
Facsimile: (704) 715-0097
   
 
   
Union Bank of California, N.A.

  7.39130%
1980 Saturn Street, Mail Code
Monterey Park, California 91755
Attention: Maria Suncin
Telephone: (323) 720-2870
Facsimile: (323) 720-2252
   
 
   
The Bank of Nova Scotia

  7.39130%
600 Peachtree St. NE
Suite 2700
Atlanta, Georgia 30308
Attention: Jill A. Retess
Telephone:(404) 877-1544
Facsimile:(404) 888-8998
   
 
   
The Frost National Bank

  3.47826%
777 Main Street
Suite 100
Fort Worth, Texas 76102
Attention: Karen Moore
Telephone: (210) 420-5673
Facsimile: (210) 420-5250
   

First Amendment to Second Amended and Restated Credit Agreement — Allocations