Big D Oil Co. operates a chain of stores branded Big D, all located in South Dakota or Wyoming. In addition to fuels branded Exxon, Mobil and Sinclair, the chain offers car washes at 10 of its sites, and some have lots that accommodate large trucks. Foodservice, including sandwiches, pizza and roller-grill items, is available, and some locations are co-branded with Domino’s. The company also operates one Express Lube. Big D is proud of its South Dakota heritage and provides information on its website about tourist attractions such as Mount Rushmore, the Black Hills and the annual Sturgis Motorcycle Rally. Most of the stores vary in size and design, but all are branded with a large Big D logo.

Source: Convenience Digital Resource Library, Technomic. For benchmarking purposes, store counts are year-end 2018.

Headquarters:Rapid City, South Dakota
No. of Stores:40
Rank Last Year:164