Head Quarters: Winston-Salem, NC
Number of States: 3
Family-owned since 1929, Quality Oil Company operates more than 125 convenience stores under the Quality Mart and Quality Plus brands across three states. Initially, the company had been created to launch a distributorship for the then unheard-of Shell Oil Company. Today, Quality Oil also offers a diverse range of products and services including propane, commercial fuel, hotels, trucking, and real estate.