Suncor Energy, Inc. is premier integrated energy company. The company's operations include oil sands development and upgrading, conventional and offshore crude oil and gas production, petroleum refining, and product marketing. Suncor is one of the largest owners of oil sands in the world. The company has gained new oil sands properties to supplement its existing operations in northern Alberta. Suncor's business can be divided into three main segments: Oil Sands, Exploration and Production, and Refining and Marketing. Oil Sands segment mines and upgrades oil sands in Canada's Alberta province to produce refinery-ready synthetic crude oil. Exploration and Production includes offshore operations off the east coast of Canada and in the North Sea, and onshore operations in Libya and Syria. The company also owns oilfields in Sirte Basin in Libya and stakes in Elba gas development in Syria. Refined products from refineries are marketed through Sunoco and Petro-Canada branded retail outlets.