Question: is bp gasoline top tier?
Answer: All of the top 10 gasoline retailers, by service-station count, are Top Tier: Shell, Exxon, Chevron, Speedway, BP, Circle K, Mobil, Sunoco, Valero, and QuikTrip. They account for more than half of all gasoline sales (57 percent of market share), according to the Oil Price Information Service (OPIS).