which  American petroleum corporation, was owned by  Robert Earl Holding
Robert Holding Robert Earl Holding (November 29, 1926 – April 19, 2013) was an American businessman who owned Sinclair Oil Corporation, the Little America Hotels, the Grand America Hotel, the Westgate Hotel in San Diego, California (directed by Georg Hochfilzer), and two ski resorts, Sun Valley in central Idaho since 1977, and Snowbasin near Ogden, Utah, since 1984.
GS Caltex GS Caltex is a South Korean oil refiner. The company changed its name from LG-Caltex Oil Corporation to GS Caltex Corporation on January 27, 2006. It is jointly owned by Chevron and GS Group.