6-K

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.   20549

Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934

For the month of: December 2009 Commission File Number: 1-12384

SUNCOR ENERGY INC.

(Name of registrant)

112 Fourth Avenue S.W.

P.O. Box 38

Calgary, Alberta

Canada, T2P 2V5

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F o Form 40-F x

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the SEC pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934:

Yes o No x

If “Yes” is marked, indicate the number assigned to the registrant in connection with Rule 12g3-2(b):

N/A

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	SUNCOR ENERGY INC.
Date:	By:
December 3, 2009		“Shawn Poirier”
		Shawn Poirier
		Assistant Corporate
		Secretary

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EXHIBIT INDEX

Exhibit	Description of Exhibit
99.1	Press Release Dated December 3, 2009, Suncor Reports Production Numbers for November 2009

3

EX-99.1

EXHIBIT 99.1

Press Release Dated December 3, 2009,

Suncor Reports Production Numbers for November 2009

News Release

FOR IMMEDIATE RELEASE

Suncor Energy reports oil sands production numbers for November 2009

Calgary, Alberta (December 3, 2009) — Suncor Energy Inc. reported today that the company’s oil sands production during November averaged approximately 314,000 barrels per day (bpd). Year-to-date oil sands production at the end of November averaged approximately 297,000 bpd. Suncor is targeting average oil sands production of 290,000 to 305,000 bpd in 2009.

Production numbers include upgraded sweet and sour synthetic crude oil and diesel, as well as non-upgraded bitumen sold directly to the market, from all Suncor-operated facilities. Reported volumes include those previously processed for Petro-Canada on a fee-for-service basis but do not include Suncor’s proportionate production share from the Syncrude joint venture.

On a monthly basis, Suncor reports production numbers from its oil sands operation in order to provide stakeholders with a more timely review of operational performance. These numbers are preliminary and subject to adjustment. Monthly totals may differ from year-to-date total due to rounding, the impact of sales and changes in inventory. Production volumes will be confirmed when Suncor’s fourth quarter results are released.

This news release contains forward-looking statements, including an outlook production range of 290,000 to 305,000 bdp which are based on Suncor’s current expectations, estimates, projections and assumptions and are subject to change. Assumptions are based on management’s experience and perception of historical trends, current conditions, anticipated future developments and other factors related to Suncor’s business. Assumptions of the 2009 outlook include implementing reliability and operational efficiency initiatives which we expect to minimize unplanned maintenance in 2009. Readers are cautioned that actual results could differ materially from those expressed or implied as a result of changes to Suncor’s plans and the impact of events, risks and uncertainties discussed in Suncor’s third quarter earnings release, current annual information form/form 40-F, annual report to shareholders and other documents filed with Canadian securities commissions at www.sedar.com and the United States Securities and Exchange Commission (SEC) at www.sec.gov.

Suncor Energy Inc. is Canada’s premier integrated energy company. Suncor’s operations include oil sands development and upgrading, conventional and offshore oil and gas production, petroleum refining, and product marketing under the Petro-Canada brand — a proud National Partner to the Vancouver 2010 Olympic and Paralympic Winter Games. While working to responsibly develop petroleum resources, Suncor is also developing a growing renewable energy portfolio. Suncor’s common shares (symbol: SU) are listed on the Toronto and New York stock exchanges.

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For more information about Suncor Energy Inc. please visit our web site at www.suncor.com.

Media inquiries:	Sneh Seetal 403-296-6034
Investor inquiries:	Helen Chan 403-693-2048

Suncor Energy Inc.

P.O. Box 38, 112 4 Avenue S.W., Calgary, Alberta T2P 2V5

Website: www.suncor.com