EXHIBIT 99.1

                            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 Industries, Inc. (the
"Company") on Form 10-Q for the period ending October 31, 2002, as filed with
the Securities and Exchange Commission on the date hereof (the Report), I, Billy
F. Mitcham, Jr., Chief Executive Officer of the Company, certify, pursuant to 18
U.S.C. ss. 1350, as adopted pursuant to ss. 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/ Billy F. Mitcham, Jr.
- -------------------------
Billy F. Mitcham, Jr.
Chief Executive Officer
December 13, 2002




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