World Fleet of Drill Ships
Most recent update: November 15, 2011.
Rigs highlighted in blue are those under construction.
| Operator | Rig Name | Design | Builder | Country of Build | Year Built | Water Depth (ft.) | Drilling Depth (ft.) |
| Aban Offshore | Aban Abraham | Gusto | IHC Schiedam | Netherlands | 1976 | 4,200 | 20,000 |
| Aban Offshore | Aban Ice | Hapag-Lloyd | Lloyd Werft | Germany | 1975 | 1,000 | 20,000 |
| Aban Offshore | D/S Deep Venture | Gusto | Rauma Repola | Finland | 1981 | 4,500 | 20,000 |
| Atwood Oceanics | Atwood Achiever | Daewoo | Korea | 2014 | 12,000 | 40,000 | |
| Atwood Oceanics | Atwood Advantage | Daewoo | Korea | 2013 | 12,000 | 40,000 | |
| Delba Perforadora | Norbe X | Daewoo | Korea | 2011 | 10,000 | 35,000 | |
| Delba Perforadora | Norbe XI | Daewoo | Korea | 2012 | 10,000 | 35,000 | |
| Diamond Offshore | Ocean BlackHawk | Gusto P10000 | Hyundai | Korea | 2013 | 12,000 | 40,000 |
| Diamond Offshore | Ocean BlackHornet | Gusto P10000 | Hyundai | Korea | 2013 | 12,000 | 40,000 |
| Diamond Offshore | Ocean BlackRhino | Gusto P10000 | Hyundai | Korea | 2014 | 12,000 | 40,000 |
| Diamond Offshore | Ocean Clipper | Converted Tanker | Mitsubishi | Japan | 1997 | 7,500 | 25,000 |
| Dolphin A/S | Belford Dolphin | Navis class | Samsung | Korea | 2000 | 10,000 | 30,000 |
| Dolphin A/S | Hyundai | Korea | 2013 | 12,000 | 40,000 | ||
| Ensco Drilling | Ensco DS-1 | Gusto | Hyundai | Korea | 1999 | 10,000 | 31,500 |
| Ensco Drilling | Ensco DS-2 | Gusto | Hyundai | Korea | 1999 | 10,000 | 31,500 |
| Ensco Drilling | Ensco DS-3 | S10000E | Samsung | Korea | 2010 | 12,000 | 40,000 |
| Ensco Drilling | Ensco DS-4 | S10000E | Samsung | Korea | 2010 | 12,000 | 40,000 |
| Ensco Drilling | Ensco DS-5 | S10000E | Samsung | Korea | 2011 | 12,000 | 40,000 |
| Ensco Drilling | Ensco DS-6 | S10000E | Samsung | Korea | 2011 | 12,000 | 40,000 |
| Ensco Drilling | Ensco DS-7 | S10000E | Samsung | Korea | 2013 | 12,000 | 40,000 |
| Etesco | Takatsugu | S10000E | Samsung | Korea | 2012 | 10,000 | 35,000 |
| Jasper Drilling | Jasper Explorer | Gusto | IHC Holland | Netherlands | 1973 | 5,000 | 25,000 |
| Maersk Drilling | S10000E | Samsung | Korea | 2013 | 12,000 | 40,000 | |
| Maersk Drilling | S10000E | Samsung | Korea | 2013 | 12,000 | 40,000 | |
| Maersk Drilling | S10000E | Samsung | Korea | 2014 | 12,000 | 40,000 | |
| Maersk Drilling | S10000E | Samsung | Korea | 2014 | 12,000 | 40,000 | |
| Mike Mullen | Peregrine I | Gusto | Rauma Repola | Finland | 1982 | 7,200 | 25,000 |
| Noble Drilling | Noble Bully 1 | Gusto PRD12000 | Shanghai SY/Keppel | China/S'pore | 2011 | 12,000 | 40,000 |
| Noble Drilling | Noble Bully 2 | Gusto PRD12000 | Shanghai SY/Keppel | China/S'pore | 2011 | 12,000 | 40,000 |
| Noble Drilling | Noble Discoverer | Converted Bulker | Namura | Japan | 1976 | 2,000 | 20,000 |
| Noble Drilling | Noble Duchess | Converted Tanker | CSBC | Taiwan | 1975 | 2,300 | 25,000 |
| Noble Drilling | Noble Globetrotter I | Huisman Globetrotter | STX Shipbuilding | China/Korea | 2011 | 10,000 | 40,000 |
| Noble Drilling | Noble Globetrotter II | Huisman Globetrotter | STX Shipbuilding | China/Korea | 2013 | 10,000 | 40,000 |
| Noble Drilling | Noble Leo Segerius | Gusto | Rotterdam DY | Netherlands | 1981 | 1,700 | 25,000 |
| Noble Drilling | Noble Muravlenko | Gusto | Rauma Repola | Finland | 1982 | 4,000 | 25,000 |
| Noble Drilling | Noble Phoenix | Gusto | Scott-Lithgow | Scotland | 1979 | 4,500 | 25,000 |
| Noble Drilling | Noble Roger Eason | Converted Bulker | Mitsubishi | Japan | 1977 | 6,000 | 25,000 |
| Noble Drilling | Gusto P10000 | Hyundai | Korea | 2012 | 12,000 | 40,000 | |
| Noble Drilling | Gusto P10000 | Hyundai | Korea | 2013 | 12,000 | 40,000 | |
| Noble Drilling | Gusto P10000 | Hyundai | Korea | 2014 | 12,000 | 40,000 | |
| Noble Drilling | Gusto P10000 | Hyundai | Korea | 2014 | 12,000 | 40,000 | |
| Northern Offshore | Energy Searcher | Converted Bulker | Hong Kong DY | Hong Kong | 1982 | 2,000 | 25,000 |
| Ocean Rig | Ocean Rig Corcovado | S10000E | Samsung | Korea | 2010 | 10,000 | 35,000 |
| Ocean Rig | Ocean Rig Mykonos | S10000E | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Ocean Rig | Ocean Rig Olympia | S12000E | Samsung | Korea | 2011 | 12,000 | 35,000 |
| Ocean Rig | Ocean Rig Poseidon | S12000E | Samsung | Korea | 2011 | 12,000 | 35,000 |
| Ocean Rig | S12000E | Samsung | Korea | 2013 | 10,000 | 35,000 | |
| Ocean Rig | S12000E | Samsung | Korea | 2013 | 10,000 | 35,000 | |
| Ocean Rig | S12000E | Samsung | Korea | 2013 | 10,000 | 35,000 | |
| Odebrecht | Norbe VIII | Daewoo | Korea | 2011 | 10,000 | 35,000 | |
| Odebrecht | Norbe IX | Daewoo | Korea | 2011 | 10,000 | 35,000 | |
| Odebrecht | Daewoo | Korea | 2013 | 10,000 | 40,000 | ||
| Odebrecht | Daewoo | Korea | 2013 | 10,000 | 40,000 | ||
| Odfjell/Metrostar | Deepsea Metro I | Gusto P10000 | Hyundai | Korea | 2011 | 10,000 | 35,000 |
| Odfjell/Metrostar | Deepsea Metro II | Gusto P10000 | Hyundai | Korea | 2011 | 10,000 | 35,000 |
| ONGC | Sagar Bhushan | Hitachi | Hindustan SY | India | 1987 | 1,000 | 20,000 |
| ONGC | Sagar Vijay | Hitachi | Hitachi Zosen | Japan | 1985 | 2,950 | 20,000 |
| Pacific Drillship | Pacific Bora | S10000E | Samsung | Korea | 2010 | 10,000 | 35,000 |
| Pacific Drillship | Pacific Khamsin | S10000E | Samsung | Korea | 2012 | 10,000 | 35,000 |
| Pacific Drillship | Pacific Mistral | S10000E | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Pacific Drillship | Pacific Santa Ana | S10000E | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Pacific Drillship | Pacific Scirocco | S10000E | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Pacific Drillship | Pacific Sharav | S10000E | Samsung | Korea | 2013 | 10,000 | 35,000 |
| PetroSaudi | Neptune Discoverer | Offshore Discoverer | Mitsui | Japan | 1977 | 1,500 | 20,000 |
| PetroSaudi | Saturn | Global Marine | FELS | Singapore | 1983 | 2,750 | 25,000 |
| Petroserv | Carolina | Daewoo | Korea | 2011 | 10,000 | 35,000 | |
| Queiroz Galvao | Amaralina Star | F & G | Samsung | Korea | 2012 | 10,000 | 35,000 |
| Queiroz Galvao | Laguna Star | F & G | Samsung | Korea | 2012 | 10,000 | 35,000 |
| Rowan | Gusto P10000 | Hyundai | Korea | 2013 | 12,000 | 40,000 | |
| Rowan | Gusto P10000 | Hyundai | Korea | 2014 | 12,000 | 40,000 | |
| Rowan | Gusto P10000 | Hyundai | Korea | 2014 | 12,000 | 40,000 | |
| Saipem | Saipem 10000 | Samsung | Samsung | Korea | 2000 | 10,000 | 30,000 |
| Saipem | Saipem 12000 | S12000E | Samsung | Korea | 2010 | 12,000 | 35,000 |
| Schahin Drilling | Cerrado | S10000E | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Schahin Drilling | SC Lancer | Gusto | Scott-Lithgow | U.K. | 1977 | 4,000 | 20,000 |
| Schahin Drilling | Sertao | S10000E | Samsung | Korea | 2012 | 10,000 | 35,000 |
| Schahin Drilling | Vitoria 10000 | S10000E | Samsung | Korea | 2010 | 10,000 | 35,000 |
| SeaDrill Ltd | West Auriga | S10000E | Samsung | Korea | 2012 | 12,000 | 40,000 |
| SeaDrill Ltd | West Capella | S10000E | Samsung | Korea | 2009 | 10,000 | 30,000 |
| SeaDrill Ltd | West Gemini | S10000E | Samsung | Korea | 2010 | 10,000 | 30,000 |
| SeaDrill Ltd | West Navigator | MST III | Samsung | Korea | 2000 | 7,500 | 35,000 |
| SeaDrill Ltd | West Polaris | S10000E | Samsung | Korea | 2008 | 10,000 | 30,000 |
| SeaDrill Ltd | West Tellus | S10000E | Samsung | Korea | 2013 | 12,000 | 40,000 |
| SeaDrill Ltd | West Vela | S10000E | Samsung | Korea | 2013 | 12,000 | 40,000 |
| Sete Brasil | Arpoador | S10000E | Est. Atlantico | Brazil | 2015 | 10,000 | 35,000 |
| Sete Brasil | Copacabana | S10000E | Est. Atlantico | Brazil | 2015 | 10,000 | 35,000 |
| Sete Brasil | Gruman | S10000E | Est. Atlantico | Brazil | 2016 | 10,000 | 35,000 |
| Sete Brasil | Ipanema | S10000E | Est. Atlantico | Brazil | 2016 | 10,000 | 35,000 |
| Sete Brasil | Leblon | S10000E | Est. Atlantico | Brazil | 2017 | 10,000 | 35,000 |
| Sete Brasil | Leme | S10000E | Est. Atlantico | Brazil | 2017 | 10,000 | 35,000 |
| Sete Brasil | Macambaia | S10000E | Est. Atlantico | Brazil | 2018 | 10,000 | 35,000 |
| Stena Drilling | Stena Carron | SAMS DMS | Samsung | Korea | 2008 | 10,000 | 35,000 |
| Stena Drilling | Stena DrillMAX | Samsung | Samsung | Korea | 2008 | 10,000 | 35,000 |
| Stena Drilling | Stena DrillMAX Ice | SAMS DMS Arctic | Samsung | Korea | 2011 | 10,000 | 35,000 |
| Stena Drilling | Stena Forth | SAMS DMS | Samsung | Korea | 2009 | 10,000 | 35,000 |
| Transocean Inc. | Deepwater Champion | Gusto P10000 | Hyundai | Korea | 2010 | 10,000 | 40,000 |
| Transocean Inc. | Deepwater Discovery | Samsung | Samsung | Korea | 2000 | 10,000 | 30,000 |
| Transocean Inc. | Deepwater Expedition | Gusto | Rauma Repola | Finland | 1999 | 10,000 | 30,000 |
| Transocean Inc. | Deepwater Frontier | Conoco/R&B | Samsung | Korea | 1999 | 10,000 | 30,000 |
| Transocean Inc. | Deepwater Millennium | Conoco/R&B | Samsung | Korea | 1999 | 10,000 | 30,000 |
| Transocean Inc. | Deepwater Navigator | Offshore Discoverer | Mitsui | Japan | 1971 | 7,800 | 25,000 |
| Transocean Inc. | Deepwater Pathfinder | Conoco/R&B | Samsung | Korea | 1998 | 10,000 | 30,000 |
| Transocean Inc. | Dirubhai Deepwater KG1 | S10000E | Samsung | Korea | 2009 | 12,000 | 35,000 |
| Transocean Inc. | Dirubhai Deepwater KG2 | S10000E | Samsung | Korea | 2010 | 12,000 | 35,000 |
| Transocean Inc. | Discoverer 534 | Offshore Discoverer | Mitsui | Japan | 1975 | 7,000 | 25,000 |
| Transocean Inc. | Discoverer Americas | Enhanced Enterprise | Daewoo | Korea | 2009 | 12,000 | 40,000 |
| Transocean Inc. | Discoverer Clear Leader | Enhanced Enterprise | Daewoo | Korea | 2009 | 12,000 | 40,000 |
| Transocean Inc. | Discoverer Deep Seas | Offshore Discoverer | Astano | Spain | 2001 | 10,000 | 35,000 |
| Transocean Inc. | Discoverer Enterprise | Offshore Discoverer | Astano | Spain | 1999 | 10,000 | 35,000 |
| Transocean Inc. | Discoverer India | Enhanced Enterprise | Daewoo | Korea | 2010 | 12,000 | 40,000 |
| Transocean Inc. | Discoverer Inspiration | Enhanced Enterprise | Daewoo | Korea | 2010 | 12,000 | 40,000 |
| Transocean Inc. | Discoverer Luanda | Enhanced Enterprise | Daewoo | Korea | 2010 | 12,000 | 40,000 |
| Transocean Inc. | Discoverer Seven Seas | Offshore Discoverer | Mitsui | Japan | 1976 | 7,000 | 25,000 |
| Transocean Inc. | Discoverer Spirit | Offshore Discoverer | Astano | Spain | 2000 | 10,000 | 35,000 |
| Transocean Inc. | GSF C. R. Luigs | Gusto P10000 | Harland & Wolff | N. Ireland | 1999 | 9,000 | 35,000 |
| Transocean Inc. | GSF Explorer | Global Marine | Sun Ship | USA | 1973 | 7,800 | 30,000 |
| Transocean Inc. | GSF Jack Ryan | Gusto P10000 | Harland & Wolff | N. Ireland | 2000 | 8,000 | 35,000 |
| Transocean Inc. | Petrobras 10000 | S10000E | Samsung | Korea | 2009 | 10,000 | 35,000 |
| Transocean Inc. | Daewoo | Korea | 2013 | 12,000 | 40,000 | ||
| Transocean Inc. | Daewoo | Korea | 2013 | 12,000 | 40,000 | ||
| Vantage Energy | Cobalt Explorer | Daewoo | Korea | 2012 | 12,000 | 40,000 | |
| Vantage Energy | Dalian Developer | MPF 10000 | Cosco | China | 2012 | 10,000 | 30,000 |
| Vantage Energy | DragonQuest | Daewoo | Korea | 2011 | 12,000 | 40,000 | |
| Vantage Energy | Platinum Explorer | Daewoo | Korea | 2010 | 12,000 | 40,000 | |
| Vantage Energy | Tungsten Explorer | Daewoo | Korea | 2013 | 12,000 | 40,000 |