Exhibit 99.1
CONSOL ENERGY INC.
1800 Washington Road
Pittsburgh, Pennsylvania 15241
Certification of Principal Executive Officer
Pursuant to 18 U.S.C. 1350
(Section 906 of the Sarbanes-Oxley Act of 2002)
I, J. Brett Harvey, President and Chief Executive Officer (principal executive officer) of CONSOL Energy Inc. (the “Registrant”), certifies that to my knowledge, based upon a review of the Annual Report on Form 10-K for the period ended December 31, 2002 of the Registrant (the “Report”):
(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.
By: | /s/ J. BRETT HARVEY | |
Name: | J. Brett Harvey | |
Date: | April 14, 2003 |