The oil business is no shell game for Shell Canada. One of Canada's largest integrated oil companies, Shell Canada explores for and produces oil and natural gas. It also refines oil at three refineries and markets gasoline and other refined products at more than 1,600 service stations. The company is a major producer of natural gas liquids, bitumen, and sulfur. Shell Canada owns 60% of Alberta's Athabasca Oil Sands Project, which produces 255,000 barrels of bitumen per day, and explores and produces natural gas in Nova Scotia where it holds 31% of the Sable Offshore Energy Project. The company is a wholly-owned subsidiary of  Royal Dutch Shell, and holds about 30% of that company's global resource assets.