Rowan Companies, founded in 1923, is one of the leading contractors of offshore exploration, land drilling, and oil well operations. The company also owns and operates a manufacturing division that produces equipment for drilling, mining and timber industries. It manufactures and sells a variety of products, including steel plates, heavy equipment, mining loaders, log stackers, drilling rigs, mud pumps, gig components, rotary tables, and electric-powered log stackers. The company also provides maintenance and repair services, and parts and accessories of mining and timber equipment. Its drilling operations are conducted in the Gulf of Mexico, the North Sea, Canada, and in the United States region, including Texas, Louisiana and Oklahoma. Rowan Companies is headquartered in Houston.