Suncor Energy Inc.
TSX : SU
NYSE : SU

Suncor Energy Inc.

08 nov. 2007 23h59 HE

Suncor Energy's Commerce City refinery ramping up to full production following maintenance shutdown

Denver, Colorado (November 8, 2007) — Suncor Energy (U.S.A.) Inc. announced today that the planned maintenance activities that took place during the month of October at a portion of its Commerce City refinery are complete and the facility is ramping up to full production. The maintenance and capital improvement work was designed to maintain operational and environmental performance of the refinery's assets.

"It was a complete shutdown of the refinery's East Plant," says Bill Buckalew, Suncor's general manager. "Overall, the project, which took fourteen months of planning, was very well executed."

At peak times there were approximately 750 workers on site, including contractors from as far away as the Gulf coast and California. The project required approximately 150,000 man hours of maintenance activity, not including the additional work associated with the capital improvements.

Through the course of the shutdown, Suncor made arrangements to ensure continued supply of petroleum products to its customers.

The 90,000 barrel per day refining facility is located in Commerce City, about six miles northeast of downtown Denver. It supplies about 35 percent of Colorado's gasoline and diesel fuel demand and is a major supplier of jet fuel to the Denver International Airport. It is also the largest supplier of paving-grade asphalt in Colorado.

This news release contains forward-looking statements. The forward-looking statements may be identified by words like "ramping up," "designed," "planned," and similar expressions. These forward-looking statements are based on current conditions and assumptions and are not a guarantee of future events. Actual events could differ materially as a result of changes to Suncor's plans and the impact of certain events, risks and uncertainties.

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.

For more information, contact: 
Lisha Burnett, 303-570-2540.