Rowan Companies, Inc. provides a range of onshore and offshore contract drilling services in the United States and internationally. The company's drilling operations are conducted primarily in the Gulf of Mexico, the Middle East, the North Sea, Trinidad, and offshore eastern Canada, as well as in western Africa and onshore in the United States. As of February 26, 2008, it provided contract drilling services through a fleet of 21 self-elevating mobile offshore drilling platforms and 29 deep-well land drilling rigs. The company also manufactures and markets drilling products and systems, including jack-up rigs and drilling equipment in a range of sizes, including mud pumps, top drives, draw-works, and rotary tables, as well as variable-speed motors, variable-frequency drive systems, and other electrical components for the oil and gas, marine, mining, and dredging industries. In addition, it offers mining, forestry, and steel products, such as large wheeled front-end loaders, diesel-electric powered log stackers, and steel plate products. The company was founded in 1923 and is headquartered in Houston, Texas.