Folk Oil Co.

Locally owned and operated with 35 stores throughout southcentral Michigan and Toledo, Ohio, PS Food Mart, operated by Folk Oil Co., also owns automatic car washes, Subway franchises, Tubby's Subs and more. In providing a memorable experience to all customers, stores are noted for extra-clean restrooms and friendly team members, the company said. PS Food Mart serves gourmet Java Peak-branded coffee and Big Chill Zone fountain products. Citgo- or Sunoco-branded, the company is committed to providing a quality work environment for team members and encourages creative participation by all employees, leading to the highest quality of service for customers, it said.

Last fall, Sylvania, Ohio-based S&G Convenience Stores acquired eight PS Food Mart stores in the Toledo, Ohio, market from Folk Oil.

For benchmarking purposes, store counts are as of Jan. 1, 2026.