Diamond Offshore Drilling, Inc. (Diamond Offshore) is a global offshore oil and gas drilling contractor. As of December 31, 2008, the Company’s fleet consisted of 30 semisubmersibles, 14 jack-ups and one drillship. The Company offers a range of services worldwide in various markets, including the deep water, harsh environment, conventional semisubmersible and jack-up markets. The Company provides offshore drilling services to a customer base that includes independent oil and gas companies and government-owned oil companies. During 2008, the Company performed services for 49 different customers with Petroleo Brasileiro S.A., accounting for 13.1% of its annual total revenues.