EXHIBIT 99.1



                                CERTIFICATION OF
                             CHIEF EXECUTIVE OFFICER
                              OF GASCO ENERGY, INC.
                         PURSUANT TO 18 U.S.C. ss. 1350


     I, Mark Erickson,  President and Chief  Executive  Officer of Gasco Energy,
Inc. (the "Company"),  hereby certify that the accompanying  report on Form 10-Q
for the period ending March 31, 2003 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.

     I further  certify  that the  information  contained  in the Report  fairly
presents,  in all material  respects,  the financial  operations  and results of
operations of the Company.




                                                /s/ Mark Erickson
                                                Name:  Mark Erickson
                                                Date:  May 15, 2003



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                                CERTIFICATION OF
                             CHIEF FINANCIAL OFFICER
                              OF GASCO ENERGY, INC.
                         PURSUANT TO 18 U.S.C. ss. 1350


     I, W. King Grant,  Executive Vice President and Chief Financial  Officer of
Gasco Energy, Inc. (the "Company"),  hereby certify that the accompanying report
on Form 10-Q for the period ending March 31, 2003 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.

     I further  certify  that the  information  contained  in the Report  fairly
presents,  in all material  respects,  the financial  operations  and results of
operations of the Company.




                                    /s/ W. King Grant
                                    Name:  W. King Grant
                                    Date:  May 15, 2003




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