- -------------------------------------------------------------------------------- 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) OCTOBER 24, 2002 RANGE RESOURCES CORPORATION (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

DELAWARE 0-9592 34-1312571 - ---------------------------------------- ----------------- ------------------- (STATE OR OTHER JURISDICTION OF (COMMISSION (IRS EMPLOYER INCORPORATION OR ORGANIZATION) FILE NUMBER) IDENTIFICATION NO.) 777 MAIN STREET FT. WORTH, TEXAS 76102 - ---------------------------------------- ------------------- (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES) (ZIP CODE)
REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE (817) 870-2601

ITEM 9. REGULATION FD DISCLOSURE. On October 24, 2002, the Registrant filed a Form 10-K/A Amendment No. 1 for the year ending December 31, 2001, a Form 10-Q/A Amendment No. 1 for the quarter ending March 31, 2002 and a Form 10-Q/A Amendment No. 1 for the quarter ending June 30, 2002. Each filing was accompanied by certifications of the President and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. The certifications are attached as Exhibits 99.1, 99.2, 99.3, 99.4, 99.5 and 99.6 are hereby furnished pursuant to Item 9.

SIGNATURES 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. RANGE RESOURCES CORPORATION By: /s/ EDDIE M. LEBLANC ----------------------------- EDDIE M. LEBLANC CHIEF FINANCIAL OFFICER Date: October 24, 2002

EXHIBIT INDEX

Exhibit Number Item -------------- ---- 99.1 Certification of President, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 99.2 Certification of Chief Financial Officer, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 99.3 Certification of President, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 99.4 Certification of Chief Financial Officer, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 99.5 Certification of President, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 99.6 Certification of Chief Financial Officer, dated October 24, 2002, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

EXHIBIT 99.1 CERTIFICATION OF PRESIDENT OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C. SECTION 1350 1. I, John H. Pinkerton, President of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-K/A for the period ending December 31, 2001 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report fairly presents, in all material aspects, the financial condition and results of operations of the Company. By: /s/ John H. Pinkerton ------------------------------ Name: John H. Pinkerton Date: October 24, 2002

EXHIBIT 99.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C.SECTION 1350 1. I, Eddie M. LeBlanc, Chief Financial Officer of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-K/A for the quarterly period ending December 31, 2001 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report, subject to the matters described therein, fairly presents, in all material aspects, the financial conditions and results of operations of the Company. By: /s/ Eddie M. LeBlanc ------------------------------ Name: Eddie M. LeBlanc Date: October 24, 2002

EXHIBIT 99.3 CERTIFICATION OF PRESIDENT OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C.SECTION 1350 1. I, John H. Pinkerton, President of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-Q/A for the quarterly period ending March 31, 2002 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report fairly presents, in all material aspects, the financial condition and results of operations of the Company. By: /s/ John H. Pinkerton ------------------------------ Name: John H. Pinkerton Date: October 24, 2002

EXHIBIT 99.4 CERTIFICATION OF CHIEF FINANCIAL OFFICER OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C.SECTION 1350 1. I, Eddie M. LeBlanc, Chief Financial Officer of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-Q/A for the quarterly period ending March 31, 2002 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report, subject to the matters described therein, fairly presents, in all material aspects, the financial conditions and results of operations of the Company. By: /s/ Eddie M. LeBlanc ------------------------------ Name: Eddie M. LeBlanc Date: October 24, 2002

EXHIBIT 99.5 CERTIFICATION OF PRESIDENT OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C.SECTION 1350 1. I, John H. Pinkerton, President of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-Q/A for the quarterly period ending June 30, 2002 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report fairly presents, in all material aspects, the financial condition and results of operations of the Company. By: /s/ John H. Pinkerton ------------------------------ Name: John H. Pinkerton Date: October 24, 2002

EXHIBIT 99.6 CERTIFICATION OF CHIEF FINANCIAL OFFICER OF RANGE RESOURCES CORPORATION PURSUANT TO 18 U.S.C.SECTION 1350 1. I, Eddie M. LeBlanc, Chief Financial Officer of Range Resources Corporation (the "Company"), hereby certify to the best of my knowledge that the accompanying report on Form 10-Q/A for the quarterly period ending June 30, 2002 and filed with the Securities and Exchange Commission on the date hereof pursuant to Section 13(a) of the Securities Exchange Act of 1934 (the "Report") by the Company fully complies with the requirements of that section. 2. I further certify to the best of my knowledge that the information contained in the Report, subject to the matters described therein, fairly presents, in all material aspects, the financial conditions and results of operations of the Company. By: /s/ Eddie M. LeBlanc ------------------------------ Name: Eddie M. LeBlanc Date: October 24, 2002