Diamond Offshore Drilling, Inc. provides contract drilling services to the energy industry worldwide. The company operates a fleet of 15 offshore drilling rigs, including 4 drillships and 11 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. On April 26, 2020, Diamond Offshore Drilling, Inc., along with its affiliates, filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of Texas.