Diamond Offshore Drilling, Inc. provides contract drilling services to the energy industry worldwide. The company operates a fleet of 17 offshore drilling rigs, including 4 drillships and 13 semisubmersible rigs. It serves independent oil and gas companies, and government-owned oil companies. The company was founded in 1953 and is headquartered in Houston, Texas. Diamond Offshore Drilling, Inc. is a subsidiary of Loews Corporation.