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                                                                    EXHIBIT 23.3



                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated November 20, 1995
included in Ponder Industries, Inc.'s Form 10-K for the year ended August 31,
1997 and to all references to our firm included in this registration statement.


                                       /s/ HAIRSTON, KEMP, SANDERS & STICH, P.C.
                                           HAIRSTON, KEMP, SANDERS & STICH, P.C.


San Antonio, Texas
December 5, 1997



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