Suncor Energy Inc. operates as an integrated energy company in Canada, the United States, and internationally. It operates through Oil Sands; Exploration and Production; and Refining and Marketing segments. The Oil Sands segment explores, develops, and produces bitumen, synthetic crude oil, and related products from mining and in situ operations. This segment also engages in oil sands development, production and upgrading. The Exploration and Production segment is involved in offshore operations on the east coast of Canada, and onshore assets in Libya and Syria; and marketing and risk management of crude oil and natural gas. The Refining and Marketing segment engages in the refining, supply and marketing, as well as risk management and trade of refined products, petroleum and petrochemical products, crude oil, natural gas, power and byproducts. This segment is also involved in marketing of refined petroleum products to retail customers through a combination of company-owned Petro-Canada brand locations, branded dealers in Canada, and company-owned locations under other international brands. The company was formerly known as Suncor Inc. and changed its name to Suncor Energy Inc. in April 1997. Suncor Energy Inc. was founded in 1917 and is headquartered in Calgary, Canada.