LETTERHEAD OF PETROGEN CORP.




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


     In connection with the Annual Report on Form 10-KSB for fiscal year ended
December 31, 2002 of Petrogen Corp., a Nevada corporation (the "Company"), as
filed with the Securities and Exchange Commission on the date hereof (the
"Annual Report"), I, Sacha H. Spindler, President and Chief Executive Officer of
the Company certify, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that:

     1.   I, Sacha H. Spindler, have reviewed and read this Annual Report on
          Form 10-KSB;

     2.   To the best of my knowledge, this Annual 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 Annual Report;

     3.   To the best of my knowledge, the financial statements and other
          financial information included in this Annual Report, fairly present
          in all material respects the financial condition, results of
          operations and cash flows of the Company as of, and for, the periods
          presented in this Annual Report;

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

          (a)  designed such disclosure controls and procedures to ensure that
               material information relating to the Company, including its
               subsidiary, is made known to us by others, particularly during
               the period in which this Annual Report is being prepared;

          (b)  evaluated the effectiveness of the Company's disclosure controls
               and procedures as of a date within 90 days prior to the filing
               date of this Annual Report (the "Evaluation Date"); and

          (c)  presented in this Annual Report my conclusions about the
               effectiveness of the disclosure controls and procedures based on
               my evaluation as of the Evaluation Date;

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     5.   I have disclosed, based on my most recent evaluation, to the Company's
          auditors and board of directors performing the equivalent functions of
          an audit committee:

          (a)  all significant deficiencies in the design or operation of
               internal controls which could adversely affect the Company's
               ability to record, process, summarize and report financial data
               and have identified for the Company'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 Company's
               internal controls; and

     6.   I have indicated in this Annual Report whether there were significant
          changes in internal controls or in other factors that could
          significantly affect internal controls subsequent to the date of my
          most recent evaluation, including any corrective actions with regard
          to significant deficiencies and material weaknesses.


                                          /s/ Sacha H. Spindler
                                          ----------------------------
                                          Sacha H. Spindler, President and Chief
                                          Executive Officer