Speedway is the retail arm of integrated refiner-marketer Marathon Petroleum Corp., for now. It's acquisition, completed May 14, put the third-largest c-store chain in the U.S. in the hands of No. 1 chain 7-Eleven Inc.The Speedway brand is known for low gasoline prices and its popular Speedy Rewards program.

7-Eleven's acquisition of Speedway is the largest M&A deal in U.S. c-store history, and is part of 7-Eleven's goal to grow to 20,000 units in the U.S. by 2027.

Marathon Petroleum announced it would spin off Speedway in October 2019 following a strategic review and pressure from activist investors. The acquirer has not announced whether it will maintain the Speedway retail brand or rebrand the 3,854 stores to the 7-Eleven name.

For benchmarking purposes, store counts are as of Jan. 1, 2021.

Headquarters:Enon, Ohio
No. of Stores:3854
Rank Last Year:3