UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  FORM 10-QSB/A


 X   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
---  ACT OF 1934


For the Quarterly Period Ended June 30, 2002


     TRANSITION  REPORT  PURSUANT  TO  SECTION  13 OR  15(d)  OF THE  SECURITIES
---  EXCHANGE ACT OF 1934



                         Commission file number: 0-7914

                        BASIC EARTH SCIENCE SYSTEMS, INC.
        (Exact name of small business issuer as specified in its charter)


Delaware                                                              84-0592823
--------------------------------------------------------------------------------
(State or other jurisdiction of                                    (IRS Employer
incorporation or organization)                               Identification No.)

1801 Broadway, Suite 620, Denver, CO                                  80202-3835
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(Address for principal executive offices)                             (Zip Code)

                                 (303) 296-3076
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                           (Issuer's telephone number)


Securities registered under Section 12(b) of the Act: None

Securities registered under Section 12(g) of the Act: Common Stock, $.001 par
value

Check whether the issuer (1) filed all reports required to be filed by Section
13 or 15(d) of the Exchange Act during the past 12 months (or for such shorter
period that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes X   No ____



Shares of common stock outstanding on August 13, 2002: 16,530,487




                        BASIC EARTH SCIENCE SYSTEMS, INC.

                                  FORM 10-QSB/A

                                  June 30, 2002

                                      INDEX

PART II: OTHER INFORMATION                                                  Page
                                                                            ----


     Item 6. Exhibits and Reports on Form 8-K...............................  3






Part II
-------


Item 6. Exhibits and Reports on Form 8-K

     (a)  Exhibits:

          99.1 Certification Pursuant to 18 U.S.C.ss.1350, as Adopted Pursuant
               to Section 906 of the Sarbanes-Oxley Act of 2002 (Ray Singleton,
               Chief Executive Officer).

          99.2 Certification Pursuant to 18 U.S.C.ss.1350, as Adopted Pursuant
               to Section 906 of the Sarbanes-Oxley Act of 2002 (David Flake,
               Chief Financial Officer).


                                 Signature Page

Pursuant to the requirements of Section 13 of the Securities Exchange Act of
1934, this report is signed below by the following persons on behalf of Basic
and in the capacities indicated.

BASIC EARTH SCIENCE SYSTEMS, INC.
                                                       Date


/s/ Ray Singleton                                      August 15, 2002
-----------------                                      ---------------
Ray Singleton, President



/s/ David J. Flake                                     August 15, 2002
------------------                                     ---------------
David J. Flake, Chief Financial Officer and
Principal Accounting Officer