TAC (previously Truman Arnold Companies) is one of the largest independent fuel wholesalers and aviation service providers in the US. Its energy business markets and sells more than 2 billion gallons of fuel to customers in industries like energy retail, trucking, utilities, mining, and construction. The company supplies refined products like gasoline, diesel, biodiesel, ethanol renewable fuels, and Diesel Exhaust Fluid (a non-hazardous product). TAC also serves the aviation industry by selling aviation fuel and providing Fixed Base Operations (aircraft fueling, hangar space, and transport) through over 15 locations in the US. Providing private charter flights and aircraft maintenance services is a small part of the company's business. TAC was founded in 1964 as Truman Arnold Companies.