Suncor Energy Inc.

Suncor Energy Inc.

19 sept. 2007 23h59 HE

Suncor Energy prices U.S. dollar debt issue

Calgary, Alberta (September 19, 2007) — Suncor Energy Inc. reports that it has arranged for the issuance of an additional US$400 million in principal amount of 6.50% senior unsecured Notes maturing on June 15, 2038. The Notes will be priced at 100.296% of par to yield 6.477% and constitute a further issuance of the US$750 million in principal amount of 6.50% senior unsecured Notes maturing on June 15, 2038. The net proceeds from the sale of the Notes will be used for general corporate purposes, including repayment of short term borrowings, supporting Suncor's ongoing capital spending program and for working capital requirements. Closing is scheduled for September 24, 2007.

The sale of the Notes will be completed under Suncor's shelf prospectus dated February 20, 2007 and its prospectus supplement dated September 19, 2007. The offering was led by JPMorgan and Citi Markets & Banking as joint book-running managers.

This news release does not constitute an offer to sell or a solicitation of an offer to buy any of the Notes.

Suncor has filed a registration statement (including a prospectus) with the U.S. Securities and Exchange Commission (the SEC) for the offering to which this communication relates. Prospective investors should read the prospectus in that registration statement and other documents Suncor has filed with the SEC for more complete information about Suncor and this offering. These documents are available free of charge on the EDGAR section of the SEC Web site at, or by contacting Citigroup Global Markets Inc. at Prospectus Department, Brooklyn Army Terminal, 140 58th Street, 8th Floor, Brooklyn, NY 11220, 1-877-858-5407 (toll free) or J.P. Morgan Securities Inc. at 270 Park Avenue New York, NY 10017 Attn: High Grade Syndicate Desk - 8th floor, 1-212-834-4533 (collect).

This news release contains forward-looking statements identified by the words "maturing," "will be," "schedule" and similar expressions that address goals, expectations or projections about the future. This statement is based on Suncor's current goals, expectations, estimates, projections and assumptions, as well as its current budgets and plans for capital expenditures. Such statements are not guarantees of future performance. Actual results could differ materially, as a result of factors, risks and uncertainties, known and unknown, to which Suncor's business is subject. Further discussion of the risks, uncertainties and other factors that could affect these plans, and any actual results, is included in Suncor's annual report to shareholders and other documents filed with regulatory authorities.

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.

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For further information, contact:
Brad Bellows
(403) 269-8717