Exhibit 10(c) CONFORMED COPY AMENDMENT TO CREDIT AGREEMENT This AMENDMENT, dated as of February 23, 2001 (this "Amendment"), is made to that certain FIVE-YEAR SECOND AMENDED AND RESTATED COMPETITIVE ADVANCE AND REVOLVING CREDIT FACILITY AGREEMENT, dated as of February 25, 2000 (the "Credit Agreement"), among TEXAS UTILITIES COMPANY, a Texas corporation doing business as TXU Corp. ("TXU"); TXU ELECTRIC COMPANY, a Texas corporation and a wholly owned subsidiary of TXU ("TXU Electric"), and TXU GAS COMPANY, a Texas corporation and a wholly owned subsidiary of TXU ("TXU Gas" and, together with TXU and TXU Electric, the "Borrowers", and each individually, a "Borrower"); the Lenders party thereto (the "Lenders"); and THE CHASE MANHATTAN BANK ("Chase"), as Competitive Advance Facility Agent (in such capacity, the "CAF Agent"), as administrative agent for the Lenders (in such capacity, the "Administrative Agent"; and, together with the CAF Agent, the "Agents") and as fronting bank for the Letters of Credit issued thereunder (in such capacity, the "Fronting Bank"). PRELIMINARY STATEMENT: The Borrowers, the Lenders, the Agents and the Fronting Bank previously entered into the Credit Agreement. The Borrowers have requested that the Lenders, the Agents and the Fronting Bank agree to the amendment of the Credit Agreement as set forth herein and the Lenders, the Agents and the Fronting Bank have agreed to such request, subject to the terms and conditions of this Amendment. Therefore, for good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows: SECTION 1. Definitions. Capitalized terms used but not defined herein have the meanings assigned to such terms in the Credit Agreement. SECTION 2. Amendments. Subject to the satisfaction of the conditions precedent set forth in Section 3 hereof, the Credit Agreement is hereby amended as follows: (a) The definition of "Facility A Credit Agreement" set forth in Section 1.01 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: "Facility A Credit Agreement" shall mean the 364-Day Competitive Advance and Revolving Credit Facility Agreement, dated as of February 23, 2001, among the Borrowers and certain other parties named therein, as amended, modified or supplemented from time to time. 2 (b) The definition of "LC Commitment Amount" set forth in Section 1.01 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: "LC Commitment Amount" shall mean $500,000,000. (c) The definition of "U.K. Facility Agreement" set forth in Section 1.01 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: "U.K. Facility Agreement" shall mean the Facilities Agreements, dated August 23, 2000, with respect to a (Pounds)750 million term facility, a (Pounds)325 million revolving credit facility and a (Pounds)300 million revolving credit facility, among TXU Europe Limited, the lenders parties thereto and certain other parties named therein, as amended, modified or supplemented from time to time. (d) Clause (iii) of Section 2.01 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: (iii) unless and until the TXU Electric Approval Date shall have occurred, at no time shall the sum of (x) the outstanding aggregate principal amount of all Loans made to TXU Electric plus (y) the outstanding aggregate principal amount of all "Loans" under and as defined in the Facility A Credit Agreement made to TXU Electric plus (z) the aggregate amount of LC Outstandings for the account of, or owing by, TXU Electric exceed $2,000,000,000, (e) Section 3.14 ("Year 2000 Compliance") and all references thereto are deleted. SECTION 3. Conditions of Effectiveness. Section 2 of this Amendment shall become effective as of the date first set forth above (the "Amendment Date") when each of the following conditions shall have been fulfilled: (i) the Agents, the Fronting Bank, the Required Lenders and the Borrowers shall each have executed and delivered to the Administrative Agent a counterpart of this Amendment; (ii) the following statements shall be true and correct and the Administrative Agent shall have received a certificate of a duly authorized officer of TXU, dated the Amendment Date and in sufficient copies for each Lender, stating that: (A) the representations and warranties of each Borrower set forth in Section 4 hereof are true and correct on and as of the Amendment Date as though made on and as of such date; and 3 (B) no event has occurred and is continuing that constitutes a Default or an Event of Default; (iii) the Administrative Agent shall have received the following, each dated the Amendment Date, in form and substance satisfactory to the Administrative Agent and in sufficient copies for each Lender: (A) certified copies of the resolutions of the Board of Directors of each of the Borrowers approving the execution and delivery by such Borrower of this Amendment and the performance by such Borrower of its obligations under the Credit Agreement as amended hereby, and of all documents evidencing other necessary corporate action with respect to the execution and delivery by such Borrower of this Amendment and the performance by such Borrower of its obligations under the Credit Agreement as amended hereby; (B) a certificate of the Secretary or an Assistant Secretary of each of the Borrowers certifying: (1) the names, true signatures and incumbency of the officers of such Borrower authorized to sign this Amendment; and (2) that neither the certificate of incorporation (or comparable charter document) nor the bylaws of such Borrower have been amended, supplemented or otherwise modified since February 25, 2000 or, if either such document has been amended, supplemented or modified since such date, that attached thereto is a true, correct and complete copy of such document as of the Amendment Date; (C) a certificate of a Responsible Officer of each Borrower certifying that all actions, consents, authorizations or approvals of, registrations or filings with, or other actions by, any Governmental Authority required in connection with the execution and delivery by such Borrower of this Amendment and the performance by such Borrower of its obligations under the Credit Agreement as amended hereby have been obtained and are in full force and effect and that a true, correct and complete copy of each such consent, authorization, approval and filing is attached thereto; 4 (D) favorable opinions of counsel for the Borrowers as to such matters as the Administrative Agent may reasonably request; and (E) such other approvals, opinions and documents as any Lender, through the Administrative Agent, may reasonably request. SECTION 4. Representations and Warranties. Each Borrower represents and warrants that (a) the representations and warranties contained in Article III of the Credit Agreement (with each reference therein to "this Agreement", "hereunder" and words of like import referring to the Credit Agreement being deemed to be a reference to this Amendment and the Credit Agreement as amended hereby) are true and correct on and as of the Amendment Date as though made on and as of such date, and (b) no event has occurred and is continuing, or would result from the execution and delivery of this Amendment, that constitutes a Default or an Event of Default. SECTION 5. Effect on the Credit Agreement. Except as specifically provided above, the Credit Agreement shall continue to be in full force and effect and is hereby in all respects ratified and confirmed. The execution, delivery and effectiveness of this Amendment shall not, except as expressly provided herein, operate as a waiver of any right, power or remedy of the Lenders, the Agents or the Fronting Bank under the Credit Agreement, nor constitute a waiver of any provision of the Credit Agreement. SECTION 6. Costs, Expenses and Taxes. The Borrowers agree jointly and severally to pay on demand all costs and expenses of the Administrative Agent in connection with the preparation, execution and delivery of this Amendment and the other instruments and documents to be delivered hereunder, including, without limitation, the reasonable fees and out-of-pocket expenses of counsel for the Administrative Agent with respect thereto, and all costs and expenses (including, without limitation, counsel fees and expenses), if any, in connection with the enforcement (whether through negotiations, legal proceedings or otherwise) of this Amendment or such other instruments and documents. In addition, the Borrowers agree jointly and severally to pay any and all stamp and other taxes payable or determined to be payable in connection with the execution and delivery of this Amendment and the other instruments and documents to be delivered hereunder, and agree jointly and severally to save the Agents, the Fronting Bank and the Lenders harmless from and against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such taxes. 5 SECTION 7. Execution in Counterparts. This Amendment may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed and delivered shall be deemed to be an original and all of which taken together shall constitute but one and the same instrument. SECTION 8. Governing Law. This Amendment shall be governed by, and construed in accordance with, the internal laws of the State of the New York. [Signature pages to follow.] S-1 TXU CORP. By /s/ Kirk R. Oliver --------------------------------- Name: Kirk R. Oliver Title: Treasurer and Assistant Secretary TXU ELECTRIC COMPANY By /s/ Laura Conn --------------------------------- Name: Laura Conn Title: Treasurer and Assistant Secretary TXU GAS COMPANY By /s/ Laura Conn --------------------------------- Name: Laura Conn Title: Treasurer and Assistant Secretary S-2 THE CHASE MANHATTAN BANK, individually and as Administrative Agent, Competitive Advance Facility Agent and Fronting Bank By /s/ Robert W. Traband --------------------------------- Name: Robert W. Traband Title: Vice President S-3 ABN AMRO BANK N.V. By /s/ Kevin S. McFadden --------------------------------- Name: Kevin S. McFadden Title: Group Vice President By /s/ Jeffrey Dodd --------------------------------- Name: Jeffrey Dodd Title: Group Vice President S-4 THE BANK OF TOKYO-MITSUBISHI, LTD. By /s/ John M. Mearns --------------------------------- Name: John M. Mearns Title: Vice President and Manager S-5 BNP PARIBAS By /s/ Mark A. Renaus --------------------------------- Name: Mark A. Renaud Title: Director By /s/ Andrew S. Platt --------------------------------- Name: Andrew S. Platt Title: Vice President S-6 [This page intentionally left blank] S-7 BAYERISCHE LANDESBANK GIROZENTRALE, CAYMAN ISLANDS BRANCH By /s/ Peter Obermann --------------------------------- Name: Peter Obermann Title: Senior Vice President By /s/ Sean O'Sullivan --------------------------------- Name: Sean O'Sullivan Title: Vice President S-8 [This page intentionally left blank] S-9 CITIBANK, NA By /s/ Sandip Sen --------------------------------- Name: Sandip Sen Title: Managing Director and Vice President S-10 COMMERZBANK AG, NEW YORK AND GRAND CAYMAN BRANCHES By /s/ W. David Suttles --------------------------------- Name: W. David Suttles Title: Vice President By /s/ Subash R. Viswanathan --------------------------------- Name: Subash R. Viswanathan Title: Senior Vice President S-11 CREDIT LYONNAIS NEW YORK BRANCH By /s/ Phillippe Soustra --------------------------------- Name: Phillippe Soustra Title: Senior Vice President S-12 CREDIT SUISSE FIRST BOSTON By /s/ Jay Chall --------------------------------- Name: Jay Chall Title: Director By /s/ Lalita Advani --------------------------------- Name: Lalita Advani Title: Assistant Vice President S-13 THE DAI-ICHI KANGYO BANK, LTD. By /s/ Andreas Pantelli --------------------------------- Name: Andreas Pantelli Title: Senior Vice President S-14 DANSKE BANK A/S By /s/ Dennis T. Shugrue --------------------------------- Name: Dennis T. Shugrue Title: Assistant Vice President By /s/ John A. O'Neill --------------------------------- Name: John A. O'Neill Title: Vice President S-15 DEUTSCHE BANK AG, NEW YORK AND/OR CAYMAN ISLANDS BRANCHES By /s/ Joel Makowsky --------------------------------- Name: Joel Makowsky Title: Vice President By /s/ Hans C. Narberhau --------------------------------- Name: Hans C. Narberhau Title: Vice President S-16 [This page intentionally left blank] S-17 FIRST UNION NATIONAL BANK By /s/ Joe K. Dancy --------------------------------- Name: Joe K. Dancy Title: Vice President S-18 GUARANTY FEDERAL BANK, FSB By /s/ Jim R. Hamilton --------------------------------- Name: Jim R. Hamilton Title: Vice President S-19 THE INDUSTRIAL BANK OF JAPAN, LIMITED NEW YORK BRANCH By /s/ Michael N. Oakes --------------------------------- Name: Michael N. Oakes Title: Senior Vice President, Houston Office S-20 KBC BANK N.V. By /s/ Jean-Pierre Diels/Patrick A. Janssens ---------------------------------------------- Name: Jean-Pierre Diels/Patrick A. Janssens Title: First Vice President and Vice President S-21 LEHMAN COMMERCIAL PAPER INC. By /s/ G. Andrew Keith --------------------------------- Name: G. Andrew Keith Title: Authorized Signatory S-22 LLOYDS TSB BANK PLC By /s/ Windsor R. Davies --------------------------------- Name: Windsor R. Davies Title: Director, Corporate Banking, USA By /s/ David Rodway --------------------------------- Name: David Rodway Title: Assistant Director S-23 MELLON BANK, N.A. By /s/ Roger E. Howard --------------------------------- Name: Roger E. Howard Title: Vice President S-24 [This page intentionally left blank] S-25 NATIONAL AUSTRALIA BANK LIMITED A.C.N. 004044937 By /s/ Frank J. Campiglia --------------------------------- Name: Frank J. Campiglia Title: Vice President S-26 THE ROYAL BANK OF SCOTLAND PLC By /s/ Clark McGrin --------------------------------- Name: Clark McGrin Title: Senior Vice President S-27 [This page intentionally left blank] S-28 SOCIETE GENERALE By /s/ David Bird --------------------------------- Name: David Bird Title: Vice President S-29 [This page intentionally left blank] S-30 THE SUMITOMO BANK LIMITED By /s/ C. Michael Garrido --------------------------------- Name: C. Michael Garrido Title: Senior Vice President S-31 TORONTO DOMINION (TEXAS), INC. By /s/ Mark A. Baird --------------------------------- Name: Mark A. Baird Title: Vice President S-32 WESTDEUTSCHE LANDESBANK GIROZENTRALE, NEW YORK BRANCH By /s/ Duncan M. Robertson --------------------------------- Name: Duncan M. Robertson Title: Director By /s/ Anthony Alessandro --------------------------------- Name: Anthony Alessandro Title: Manager S-33 THE BANK OF NEW YORK By /s/ Nathan S. Howard --------------------------------- Name: Nathan S. Howard Title: Vice President S-34 FLEET NATIONAL BANK By /s/ Robert Lanigan --------------------------------- Name: Robert Lanugan Title: Managing Director S-35 BANCA NAZIONALE DEL LAVORO S.p.A. NEW YORK BRANCH By /s/ Carlo Vecchi --------------------------------- Name: Carlo Vecchi Title: Senior Vice President By /s/ Robert Mancone --------------------------------- Name: Robert Mancone Title: Vice President S-36 THE CHASE MANHATTAN BANK By /s/ Robert W. Traband --------------------------------- Name: Robert W. Traband Title: Vice President S-37 UBS AG, STAMFORD BRANCH By /s/ Dorothy L. McKinley --------------------------------- Name: Dorothy L. McKinley Title: Director By /s/ Lynne B. Alfarone --------------------------------- Name: Lynne B. Alfarone Title: Associate Director S-38 BANK OF AMERICA, N.A. By /s/ Michelle A. Schoenfeld --------------------------------- Name: Michelle A. Schoenfeld Title: Vice President S-39 THE FUJI BANK, LIMITED By /s/ Shinichiro Kuruma --------------------------------- Name: Shinichiro Kuruma Title: Vice President & Manager S-40 BANK ONE, NA By /s/ Sean Drinan --------------------------------- Name: Sean Drinan Title: Director