To assure appropriate fuel quality petroleum products are continuously controlled along the whole supply chain: from the refinery to tank farms and gas stations. Tank farms check the petroleum products arriving in tank cars and through petroleum product pipelines, as well as after the acceptance to the farm’s tanks. They were Quality Oil Company of Mt. Airy, Quality Oil Company of Greenville, Quality Oil Company of Salisbury, Quality Oil Company of Statesville and Quality Oil Company of West End. During this time, most gasoline was sold in country stores rather than service stations and the Company’s largest facility sold 20,000 gallons of gasoline a month. Quality Plus and GOGAS stores often runs specials in addition to our everyday low prices on a wide assortment of premium and discount brands. Check for specials this month! If you are looking for gas stations that sell ethanol-free 100% gasoline, look no further.