Diamond Offshore Drilling, Inc. through its wholly owned drilling management subsidiary, Diamond Offshore Team Solutions, Inc. (DOTS), has successfully drilled the world’s deepest water depth turnkey well with its drillship Ocean Clipper. The well, drilled in more than 7,200 feet of water in the Gulf of Mexico for Marathon Oil Company, is the sixth deepest water depth well ever drilled worldwide and surpasses the previous turnkey record operation completed by Diamond Offshore’s semisubmersible Ocean Voyager in 1994 in approximately 2,100 feet of water.