
The original refinery was built in 1938 and purchased by San Joaquin Oil Co. in 1968. In 1979 the refinery became San Joaquin Refining Co., Inc.,a privately heldcompany located in Bakersfield, California. Major upgrades were accomplished in 1975, 1987, and again in 2001. Bakersfield is in Kern County, located in the San Joaquin Valley.