Suncor Energy, Inc. is an integrated energy company, which engages in the development of petroleum resource basins. It operates through the following segments: Oil Sands, Exploration and Production, Refining and Marketing, and Corporate and Eliminations. The Oil Sands segment operates assets in the Athabasca oil sands of northeast Alberta. The Exploration and Production segment consists of offshore operations off the east coast of Canada and in the U.K. The Refining and Marketing segment focuses on two primary operations: the Refining and Supply and Marketing operations discussed below, as well as the infrastructure supporting the marketing, supply and risk management of refined products, crude oil, natural gas, power, and byproducts. The Corporate and Eliminations segment includes activities not directly attributable to any other operating segment. The company was founded in 1917 and is headquartered in Calgary, Canada.