EXHIBIT 31


                        CERTIFICATION OF PERIODIC REPORT


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  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  report;

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

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

          a.   Designed  such  disclosure controls and procedures or caused such
               disclosure  controls  and  procedures  to  be  designed  under by
               supervision  to  ensure that material information relating to the
               small  business  issuer is made known to me by others within that
               entity,  particularly  during  the period in which this report is
               being  prepared;
          b.   [Paragraph omitted in accordance with SEC transition instructions
               contained  in  SEC  Release  34-47986.]
          c.   Evaluated  the  effectiveness  of  the  small  business  issuer's
               disclosure  controls  and procedures and presented in this report
               my conclusions about the effectiveness of the disclosure controls
               and  procedures,  as  of  the  end  of the period covered by this
               report  based  on  such  evaluation;  and
          d.   Disclosed  in  this  report  any  change  in  the  small business
               issuer's  internal control over financial reporting that occurred
               during  the  small  business  issuer's most recent fiscal quarter
               (the  small  business  issuer's  fourth quarter in the case of an
               annual  report)  that  has  materially affected, or is reasonably
               likely to materially affect, the small business issuer's internal
               control  over  financial  reporting;  and

     5.   I  have  disclosed,  based  on  my  most recent evaluation of internal
          control  over  financial  reporting,  to  the  small business issuer's
          auditors  and the audit committee of the small business issuer's board
          of  directors  (or  persons  performing  the  equivalent  functions):

          a.   All  significant  deficiencies  and  material  weaknesses  in the
               design  or operation of internal control over financial reporting
               which  are  reasonably  likely  to  adversely  affect  the  small
               business  issuer's  ability  to  record,  process,  summarize and
               report  financial  information;  and
          b.   Any  fraud,  whether or not material, that involves management or
               other  employees  who have a significant role in the registrant's
               internal  control  over  financial  reporting.

Date:  May 12, 2004

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


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