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