Suncor Energy Inc.

Suncor Energy Inc.

04 mars 2008 23h59 HE

Suncor Energy files annual disclosure documents

Calgary, Alberta (March 4, 2008) — Suncor Energy Inc. reports that it has filed its 2007 annual disclosure documents with Canadian provincial securities regulatory authorities and the United States Securities and Exchange Commission.

Suncor's 2007 Annual Report contains the company's audited consolidated financial statements and notes for the year ended December 31, 2007, and related management's discussion and analysis. The 2007 Annual Information Form contains information about Suncor's oil and gas activities, including crude oil and natural gas reserves data, the report of external qualified reserves evaluators, and related report of company management and directors. Suncor's 2008 Management Proxy Circular, also filed today, provides governance and voting information for shareholders in advance of the company's April 24 annual and special meeting.

To view the company's annual disclosure documents, visit Suncor's profile on or Suncor's website at Print copies, which are expected to be available in April, can be ordered by calling 1-800-558-9071.

Suncor Energy Inc. is an integrated energy company headquartered in Calgary, Alberta. Suncor's oil sands business, located near Fort McMurray, Alberta, extracts and upgrades oil sands and markets refinery feedstock and diesel fuel, while operations throughout western Canada produce natural gas. Suncor operates a refining and marketing business in Ontario with retail distribution under the Sunoco brand. U.S.A. downstream assets include pipeline and refining operations in Colorado and Wyoming and retail sales in the Denver area under the Phillips 66® brand. Suncor's common shares (symbol: SU) are listed on the Toronto and New York stock exchanges.

Suncor Energy (U.S.A.) Inc. is an authorized licensee of the Phillips 66® brand and marks in the state of Colorado. Sunoco in Canada is separate and unrelated to Sunoco in the United States, which is owned by Sunoco, Inc. of Philadelphia.

- 30 -

Investor inquiries:
John Rogers 403-269-8670