Diamond Offshore Drilling, Inc. provides contract drilling services to the energy industry worldwide. It provides services in floater market, including ultra-deepwater, deepwater, and mid-water. The company operates a fleet of 24 offshore drilling rigs, which comprise 4 drillships, 8 ultra-deepwater, 6 deepwater, 5 mid-water semisubmersibles, and 1 jack-up rig. It serves independent oil and gas companies, and government-owned oil companies. The company was founded in 1989 and is headquartered in Houston, Texas. Diamond Offshore Drilling, Inc. is a subsidiary of Loews Corporation.