Exhibit 99.2

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

     In connection with the Quarterly Report of Lufkin Industries, Inc. (the
"Company") on Form 10-Q for the period ending September 30, 2002, as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
R.D. Leslie, Chief Financial Officer of the Company, certify, pursuant to 18
U.S.C. (S)1350, as adopted pursuant to (S)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.


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R.D. Leslie
Chief Financial Officer
November 12, 2002

This certification is made solely for the purpose of 18 U.S.C.(S)1350, and not
for any other purpose.