Diamond Offshore Drilling, Inc. is engaged in offshore drilling and providing contract drilling services to the energy industry. The Company has a fleet of approximately 30 offshore drilling rigs, such as semisubmersibles, jack-ups and dynamically positioned (DP) drillships. Its fleet offers a range of services around the world in the floater market (ultra-deepwater, deepwater and mid-water). Its Jack-up rigs are mobile, self-elevating drilling platforms equipped with legs that are lowered to the ocean floor. Its jack-ups are used for drilling in water depths from 20 feet to 350 feet. All of its jack-up rigs are equipped with a cantilever system that enables the rig to extend its drilling package over the aft end of the rig. Its drillships and semisubmersible rigs include Ocean Greatwhite, Ocean Valor, Ocean Courage, Ocean BlackHornet, Ocean BlackRhino and others. It provides offshore drilling services to oils and gas companies and government-owned oil companies.