Sinclair Oil Corporation

The roots of Sinclair go back to its 1916 founding by Harry F. Sinclair. Today over 2,600 Sinclair gas stations and convenience stores operate in the U.S. West and Midwest. The company operates three refineries and over 1,000 miles of pipeline in the Rocky Mountains. Other operations include a chain of western hotels, the Snow Basin ski resort in Utah, the Sun Valley ski resort in Idaho and a large cattle ranching operation.