World Fleet of Drill Ships

(as of August 13, 2008)

Sources: Operators' and Builders' SEC Filings and Web Sites, RigZone.com and others.

Operator Rig Name Design Builder Country Year Built Water Depth (ft.) Drilling Depth (ft.)
Aban Loyd Aban Abraham Gusto  IHC Schiedam Netherlands 1976 4,200 20,000
Aban Loyd Aban Ice Hapag-Lloyd Lloyd Werft Germany 1975 1,000 20,000
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
Frontier Drilling AS Frontier Discoverer Converted Bulker Namura Japan 1976 2,000 20,000
Frontier Drilling AS Frontier Duchess Converted Tanker CSBC Taiwan 1975 2,300 25,000
Frontier Drilling AS Frontier Phoenix Gusto  Scott-Lithgow Scotland 1979 4,500 25,000
Gazprom Gazprom I Gazprom Kherson SY Russia 1998 1,000 20,000
Mike Mullen Energy Peregrine I Gusto  Rauma Repola Finland 1982 7,200 25,000
Neptune Marine Drilling Neptune Discoverer Offshore Discoverer Mitsui Japan 1977 1,500 20,000
Neptune Marine Drilling Neptune Explorer Gusto  IHC Holland Netherlands 1973 745 19,700
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 Roger Eason Converted Bulker Mitsubishi Japan 1977 6,000 25,000
Northern Offshore Energy Searcher Converted Bulker Hong Kong DY Hong Kong 1982 2,000 25,000
ONGC Sagar Bhushan Hitachi Hindustan SY India 1987 1,000 20,000
ONGC Sagar Vijay Hitachi Hitachi Zosen Japan 1985 2,950 20,000
Premium Drilling D/S Deep Venture Gusto Rauma Repola Finland  1981 4,500 20,000
Pride International Pride Africa Gusto  Hyundai  Korea 1999 10,000 31,500
Pride International Pride Angola Gusto  Hyundai  Korea 1999 10,000 31,500
Saipem Saipem 10000 Samsung Samsung Korea 2000 10,000 30,000
Schahin Cury SC Lancer Gusto Scott-Lithgow U.K. 1977 4,000 20,000
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
Smedvig Offshore West Navion Statoil Samsung Korea 1998 8,200 33,000
Songa Offshore AS Songa Saturn Global Marine FELS Singapore 1983 2,750 25,000
Stena Drilling Stena DrillMAX I Samsung Samsung Korea 2008 10,000 35,000
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