The term 'Chevron Rival' refers to two companies that compete with Chevron Corporation, a multinational energy corporation. The two companies are ARCO (4 letters) and HESS (4 letters). ARCO is an American oil and gas company that was founded in 1966 and is now owned by BP. HESS is an American oil and gas company that was founded in 1933 and is now owned by Marathon Petroleum Corporation. Both companies are major competitors of Chevron Corporation.