Warren, Pa.-based United Refining Co. is an independent refiner and marketer of petroleum products and the parent company of convenience stores in Pennsylvania and portions of Ohio and New York. The company operates gas stations, convenience stores, truckstops, restaurants and garages. The c-stores are branded Kwik Fill, Red Apple Food Marts and Country Fair. Each is a separate retail division, operated independently, with separate company headquarters and management staffs.

For benchmarking purposes, store counts are year-end 2019.

Headquarters:Warren, Pennsylvania
No. of Stores:349
Rank Last Year:20