Canadian Oil Sands Files Certain Annual Disclosure Documents

CALGARY, ALBERTA--(Marketwire - Feb. 24, 2012) - Canadian Oil Sands Limited COS COSWF(the "Corporation") today filed with Canadian securities regulatory authorities the Corporation's audited consolidated annual financial statements for the year ended December 31, 2011 and related management's discussion and analysis. The Corporation also filed its Annual Information Form dated February 23, 2012, which includes disclosure and reports relating to reserves data and other oil and gas information pursuant to National Instrument 51-101. The Corporation's 2011 Annual Report and Management Proxy Circular will be filed in March. Copies of the filed documents may be obtained through the Corporation's profile on www.sedar.com, the Corporation's website at www.cdnoilsands.com, or by emailing the Corporation at invest@cdnoilsands.com.

Canadian Oil Sands Limited

Canadian Oil Sands Limited provides a pure investment opportunity in the oil sands through its 36.74 per cent interest in the Syncrude Project. Syncrude is a leader in Canada's oil sands industry, operating since 1978 with a productive capacity today of 350,000 barrels per day of light, high-quality crude oil.

For more information about Canadian Oil Sands please visit our web site at www.cdnoilsands.com

Canadian Oil Sands Limited

Marcel Coutu, President & Chief Executive Officer