Canadian Oil Sands' Trudy Curran Named One of Canada's Most Powerful Women

CALGARY, ALBERTA -- (Marketwire) -- 12/11/12 -- Trudy Curran, Senior Vice President, General Counsel and Corporate Secretary of Canadian Oil Sands (TSX: COS) (OTCQX: COSWF) has been recognized by the Women's Executive Network (WXN) as one of Canada's Most Powerful Women: Top 100.

"Achieving this recognition obviously doesn't happen overnight. For Trudy, it is the result of years of successful legal work and dedication to her profession," said Marcel Coutu, President and Chief Executive Officer of Canadian Oil Sands Limited. "Trudy has worked in several industries, including the last decade as part of Canadian Oil Sands' senior management. Her contribution is strongly valued by our team and Board of Directors, with her vision and expertise helping to guide us as a publicly listed company that provides a pure investment opportunity in Canada's oil sands."

The Top 100™ Award is bestowed upon the highest achieving female leaders in the private, public and not-for-profit sectors in Canada. Winners are selected based on their strategic vision and leadership, their organization's financial performance, and their commitment to their communities.

Canadian Oil Sands Limited holds a 36.74 per cent working interest in the Syncrude joint venture, providing a pure investment opportunity in Syncrude's crude oil producing assets. Syncrude is a major producer of light, sweet, synthetic crude oil with current productive capacity of 350,000 barrels per day, a high-quality, long-life resource base and plans to expand production.

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

Contacts:

Canadian Oil Sands Limited

Siren Fisekci

Vice President, Investor & Corporate Relations

(403) 218-6228


Canadian Oil Sands Limited

Alison Trollope

Manager, Investor Relations

(403) 218-6220