Exhibit 99.2

                                CERTIFICATION OF
                             CHIEF FINANCIAL OFFICER
                        OF SPINNAKER EXPLORATION COMPANY
                         PURSUANT TO 18 U.S.C. (S) 1350

         In connection with the accompanying Quarterly Report of Spinnaker
Exploration Company (the "Company") on Form 10-Q for the period ended September
30, 2002 and filed with the Securities and Exchange Commission on the date
hereof (the "Report"), I, Robert M. Snell, Chief Financial Officer of the
Company, hereby certify, to my knowledge, that:

         1.   The Report fully complies with the requirements of Section 13(a)
              or 15(d) of the Securities Exchange Act of 1934; and

         2.   The information contained in the Report fairly presents, in all
              material respects, the financial condition and results of
              operations of the Company.


         /s/ ROBERT M. SNELL
         --------------------------------------------
         Name:  Robert M. Snell
         Title: Chief Financial Officer
         Date:  November 12, 2002