Wilson is a supplier of valve products, mill supplies, piping products, paper and janitorial products and safety products. Wilson is a division of Smith International. Smith International is a supplier of products and services to the oil and gas exploration and production industry and petrochemical industry. The company operates through several business units, including M-I SWACO, Smith Technologies, Smith Services and Wilson. The company's technology products and engineering services include drilling and completion fluid systems, waste management services, production chemicals, three-cone and fixed-cutter drill bits, turbines, fishing services, drilling tools, under-reamers, casing exit and multilateral systems, packers and liner hangers. The company also offers supply chain management solutions through a North American branch network that provides pipe, valve, fitting and safety products. Wilson is headquartered in Houston.