Ensco has been providing drilling services to the petroleum industry for 30 years. Their fleet (the largest in the world) includes 12 drillships, 10 dynamically-positioned semisubmersibles (3 with mooring capabilities), 4 moored semisubmersible, 36 premium jackups, 2 deepwater managed units, 1 semisubmersible and 2 jackups held for sale/retired. More Information