Calgary, April 19, 2007 (TSX – COS.UN) — Canadian Oil Sands Trust will release its first quarter 2007 results and hold its Annual and Special Meeting of Unitholders on Wednesday, April 25, 2007 at 2:30 p.m. (mountain standard time) in the Grand Lecture Theatre of the Metropolitan Conference Centre, located at 333 Fourth Avenue SW, Calgary, Alberta. The close of business on March 6, 2007 was fixed as the record date for determination of those Unitholders entitled to receive notice and to vote at the meeting. All proxies must be received by Computershare Trust Company no later than Tuesday, April 24, 2007. A live audio Web cast of the meeting will be available on April 25 at the following link on Canadian Oil Sands’ Web site:
http://www.cos-trust.com/investor/invPresent.aspx

Canadian Oil Sands Trust is an open-ended investment trust that generates income from its indirect 36.74 per cent working interest in the Syncrude Joint Venture. The Trust currently has approximately 479 million units outstanding, which trade on the Toronto Stock Exchange under the symbol COS.UN. The Trust is managed by Canadian Oil Sands Limited.

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Canadian Oil Sands Limited
Marcel Coutu
President & Chief Executive Officer

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

Siren Fisekci
Director, Investor Relations:
(403) 218-6228
investor_relations@cos-trust.com

Web site: www.cos-trust.com