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                                                                    Exhibit 31.1

I, Ivar Siem, certify that:

1.    I have reviewed this Amendment No.1 to the annual report on Form 10-KSB/A
      of Blue Dolphin Energy Company (the "Registrant").

2.    Based on 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 periods covered
      by this annual report;

3.    Based on 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 Registrant as of, and for, the periods presented in this annual
      report;

4.    The Registrant's other certifying officer and I are responsible for
      establishing and maintaining disclosure controls and procedures (as
      defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Registrant
      and we have:

       a) Designed such disclosure controls and procedures, or caused such
       disclosure controls and procedures to be designed under our supervision,
       to ensure that material information relating to the Registrant, including
       its consolidated subsidiaries, is made known to us by others within those
       entities, particularly during the period in which this annual report is
       being prepared;

       b) [paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986];

       c) Evaluated the effectiveness of the Registrant's disclosure controls
       and procedures and presented in this annual report our conclusions about
       the effectiveness of the disclosure controls and procedures, as of the
       end of the period covered by this annual report based on such evaluation;
       and

       d) Disclosed in this annual report any change in the Registrant's
       internal control over financial reporting that occurred during the
       Registrant's most recent fiscal quarter (the Registrant's fourth fiscal
       quarter in the case of this annual report) that has materially affected,
       or is reasonably likely to materially affect, Registrant's internal
       control over financial reporting; and

5.    The Registrant's other certifying officer and I have disclosed, based on
      our most recent evaluation of internal control over financial reporting,
      to the Registrant's auditors and the audit committee of the Registrant's
      board of directors:

       (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 Registrant'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: July 5, 2005

/s/ Ivar Siem
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Ivar Siem
Chairman and Chief Executive Officer