EXHIBIT 4
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                         FORM 52-109FT2 - CERTIFICATION
                   OF INTERIM FILINGS DURING TRANSITION PERIOD


I , Jacob Roorda, President of Harvest Operations Corp. on behalf of Harvest
Energy Trust, certify that:

1. I have reviewed the interim filings (as this term is defined in Multilateral
Instrument 52-109 CERTIFICATION OF DISCLOSURE IN ISSUERS' ANNUAL AND INTERIM
FILINGS) of Harvest Energy Trust for the interim period ending March 31, 2005;

2. Based on my knowledge, the interim filings do not contain any untrue
statement of a material fact or omit to state a material fact required to be
stated or that is necessary to make a statement not misleading in light of the
circumstances under which it was made, with respect to the period covered by the
interim filings; and

3. Based on my knowledge, the interim consolidated financial statements together
with the other financial information included in the interim filings fairly
present in all material respects the financial condition, results of operations
and cash flows of the issuer, as of the date and for the periods presented in
the interim filings.



Date: May 13, 2005


/s/ Jacob Roorda
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Jacob Roorda