Robert Earl Holding was an American businessman who owned Sinclair Oil Corporation whose logo features the silhouette of what?
Sinclair Oil Corporation Sinclair Oil Corporation is an American petroleum corporation, founded by Harry F. Sinclair on May 1, 1916, as the Sinclair Oil and Refining Corporation by combining the assets of 11 small petroleum companies. Originally a New York corporation, Sinclair Oil reincorporated in Wyoming in 1976. The corporation's logo features the silhouette of a large green dinosaur.
Armand Hammer Armand Hammer (May 21, 1898 – December 10, 1990) was an American business manager and owner, most closely associated with Occidental Petroleum, a company he ran from 1957 until his death, though he was known as well for his art collection, his philanthropy, and for his close ties to the Soviet Union.