Mattsco Supply Company is a U.S. Steel authorized seamless line pipe distributor. We are located in Tulsa, OK with over 2000 tons of inventory. Since 1975, Mattsco Supply Company has been an Oklahoma Minority Suppliers Development Council (OMSDC) certified, minority-owned supply company. Specializing in custom fabrication and specialized machining, Mattsco distributes industrial and oilfield pipe, flanges, fittings and valves. We offer a variety of tubular materials including Carbon, Stainless, and Alloy.