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Suncor Energy (U.S.A.) Inc. owns and operates the Commerce City Refinery. The refinery is comprised of three plants from two refineries, which Suncor acquired in 2003 and 2005. This is the only facility of its kind in Colorado and the largest in the Rocky Mountain Region, processing approximately 98,000 barrels per day which in turn provides fuel and petroleum products for Coloradans. For simplicity, we often refer to this facility as the refinery.