ARCO
An ARCO gas station in Los Angeles
The Atlantic brand was spun off for ARCO's East Coast stations, and was acquired by Sunoco. The ARCO brand is now used on the West Coast. ARCO specializes in discount gas by removing many frills, among them forcing prepayment for fuel (except in Oregon, where customers are prohibited by state law from pumping their own gas), not accepting credit cards, and charging for use of debit cards. In most locations, it is co-branded with ampm convenience stores, also a division of BP West Coast.
ARCO's patented gasoline additive is CleanTech.
ARCO is a successor to Standard Oil.