Suncor Energy Inc. was founded in 1953 and is headquartered in Calgary, Canada.Suncor Energy Inc., together with its subsidiaries, operates as an integrated energy company. Suncor Energy Inc. operates in three segments: Oil Sands, Natural Gas, and Refining and Marketing. The Oil Sands segment produces bitumen recovered from oil sands through mining and in-situ technology, and upgrades it into refinery feedstock, diesel fuel, and by-products. It offers light sweet crude oil/diesel and light sour crude oil/bitumen. The Natural Gas segment explores for, develops, and produces conventional natural gas, natural gas liquids, oil, and by-products from assets located in northeast British Columbia, and western and northwest Alberta. The Refining and Marketing segment refines crude oil into a range of petroleum and petrochemical products comprising jet fuels, diesel, and gasoline; produces ethanol for blending into fuels; and markets its products to industrial, commercial, and retail customers principally in Ontario and Colorado. Suncor Energy Inc. also transports crude oil on company-owned pipelines in Wyoming and Colorado, and engages in third-party energy marketing and trading activities. Suncor Energy sells its products in the United States, Canada, and Europe.