Diamond Offshore Drilling, Inc. is a company engaged in offshore drilling and providing contract drilling services to the energy industry. The Company has a fleet of 38 offshore drilling rigs, including 27 semisubmersibles, six jack-ups and five drillships. The Company's diverse fleet enables the Company to offer a range of services around the world in both the floater market (ultra-deepwater, deepwater and mid-water) and the non-floater, or jack-up, market. The Company's floater fleet (semisubmersibles and drillships) is of three types: ultra-deepwater, deepwater, and mid-water. Jack-up rigs are mobile, self-elevating drilling platforms equipped with legs that are lowered to the ocean floor. The Company's jack-ups are used for drilling in water depths from 20 feet to 350 feet. All of the Company's 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.