Calgary, March 24, 2005 (TSX – COS.UN) — Canadian Oil Sands Trust (the “Trust” or “Canadian Oil Sands”) today filed with Canadian securities authorities its Annual Information Form for the year ended December 31, 2004, including disclosure  and reports relating to reserves data and other oil and gas information pursuant to National Instrument 51-101.  The reserves report shows no significant revisions from prior disclosure. Canadian Oil Sands also filed its audited consolidated annual financial statements and related disclosure documents.  Copies of these filed documents may be obtained through www.sedar.com, Canadian Oil Sands’ website www.cos-trust.com or by emailing the Trust at investor_relations@cos-trust.com. 

Canadian Oil Sands Trust is an open-ended investment trust that generates income from its indirect 35.49 per cent working interest in the Syncrude Joint Venture. The Trust currently has approximately 91.7 million units outstanding, which trade on the Toronto Stock Exchange under the symbol COS.UN. The Trust is managed by Canadian Oil Sands Limited.

Canadian Oil Sands Limited
Marcel Coutu
President & Chief Executive Officer

Units Listed – Symbol: COS.UN
Toronto Stock Exchange
 For further information:

Randy Provencal
Investor Relations Advisor
(403) 218-6228
investor_relations@cos-trust.com

Web site: www.cos-trust.com