EXHIBIT 99.2

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Mitcham Industies, Inc. (the
"Company") on Form 10-Q for the period ending July 31, 2002, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, P.
Blake Dupuis, Executive Vice President - Finance of the Company, certify,
pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, 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/ P. Blake Dupuis
- -------------------
P. Blake Dupuis
Executive Vice President - Finance
September 14, 2002

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