Diamond Offshore Drilling Inc.

Public Subsidiary, Headquarters Location
15415 Katy Fwy., Ste. 100, Houston, TX 77094-1810, United States
(800)848-1980, (281)492-5300, (281)492-5378 fax, http://www.diamondoffshore.com

Primary SIC: Drilling Oil & Gas Wells, Primary NAICS: Drilling Oil and Gas Wells
Description: Diamond Offshore Drilling Inc. was incorporated in Delaware in 1989. The company is a global offshore oil and gas drilling contractor with a current fleet of 45 offshore rigs consisting of 30 semisubmersibles, 14 jack-ups and one drillship. High-specification semisubmersibles remain afloat and are generally capable of working in water depths of 4,000 feet or greater or in harsh environments. As of January 26, 2009, nine of the 11 high-specification semisubmersibles were located in the Gulf of Mexico, while the remaining two rigs were located offshore in Brazil and Malaysia. The 19 intermediate semisubmersibles were located in the North Sea and offshore Brazil, Australia, Mexico, Libya and Vietnam. The high-specification drillship was located offshore Brazil. Jack-up rigs are mobile, self-elevating drilling platforms equipped with legs that are lowered to the ocean floor. Jack-ups are used for drilling in water depths from 20 feet to 350 feet. As of January 26, 2009, jack-up rigs were located in the Gulf of Mexico and offshore Egypt, Mexico, Singapore, Croatia, Australia and Argentina. During 2008, Diamond Offshore Drilling performed services for 49 different customers, including major and independent oil and gas companies and government-owned oil companies.Mining: Oil and gas drilling contractor.