Exhibit 99.1

                     RULE 13a-14(a)/15d-14(a) CERTIFICATION


I, E. J. Henderson, certify that:

1.   I have reviewed this quarterly report on Form 10-QSB of CLX Energy, Inc.;

2.   Based on my knowledge, this quarterly report does not contain any untrue
     statement of a material fact or omit to state a material fact necessary to
     make the statements made, in light of the circumstances under which such
     statements were made, not misleading with respect to the period covered by
     this quarterly report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this quarterly report, fairly present in all
     material respects the financial condition, results of operations and cash
     flows of the registrant as of, and for, the periods presented in this
     quarterly report;

4.   I am responsible for establishing and maintaining disclosure controls and
     procedures (as defined in Exchange Act rules 13a-14 and 15d-14) for the
     registrant and have:

     a.   Designed such disclosure controls and procedures to ensure that
          material information relating to the registrant is made known to us by
          others within that entity, particularly during the period in which
          this quarterly report is being prepared;
     b.   Evaluated the effectiveness of the registrant's disclosure controls
          and procedures as of a date within 90 days prior to the filing date of
          this quarterly report (the "Evaluation Date") and
     c.   Presented in this quarterly report my conclusions about the
          effectiveness of the disclosure controls and procedures based on my
          evaluation as of the Evaluation Date;

5.   I have disclosed, based on my most recent evaluation, to the registrant's
     auditors and the audit committee of registrant's board of directors (or
     persons performing the equivalent functions):

     a.   All significant deficiencies in the design or operation of internal
          controls which could adversely affect the registrant's ability to
          record, process, summarize and report financial data and have
          identified for the registrant's auditors any material weaknesses in
          internal controls; and
     b.   Any fraud, whether or not material, that involves management or other
          employees who have a significant role in the registrant's internal
          controls; and

6.   I have indicated in this quarterly report whether or not there were
     significant changes in internal controls or other factors that could
     significantly affect internal controls subsequent to the date of our most
     recent evaluation, including any corrective actions with regard to
     significant deficiencies and material weaknesses.

Date:  May 7, 2003

                                              /s/ E. J. Henderson
                                            -----------------------------------
                                            E. J. Henderson,
                                            Chief Executive Officer, President,
                                            and Chief Financial Officer


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