Exhibit 21
SUBSIDIARIES OF TRANSOCEAN LTD.
(as of December 31, 2013)
| Subsidiary Name | Jurisdiction |
| 15375 Memorial Corporation | Delaware |
| Adriatic 8 Limited | Cayman Islands |
| Aguas Profundas, Limitada | Angola |
| Angola Deepwater Drilling Company (Offshore Services) Ltd | Cayman Islands |
| Angola Deepwater Drilling Company (Operations) Ltd | Cayman Islands |
| Angola Deepwater Drilling Company Ltd | Cayman Islands |
| AngoSantaFe - Prestacao de Servicos Petroliferos, Limitada | Angola |
| Applied Drilling Technology Inc. | Texas |
| Applied Drilling Technology International Limited | England & Wales |
| Arcade Drilling AS | Norway |
| Ashgrove Carriers Ltd. | Liberia |
| Asie Sonat Offshore Sdn. Bhd. | Malaysia |
| Blegra Asset Management Limited | Cyprus |
| Blegra Financing Limited | Cyprus |
| Campeche Drilling Services Inc. | Delaware |
| Challenger Minerals (Accra) Inc. | Cayman Islands |
| Challenger Minerals (Celtic Sea) Limited | British Virgin Islands |
| Challenger Minerals (Ghana) Limited | Ghana |
| Challenger Minerals Inc. | California |
| Cliffs Drilling do Brasil Servicos de Petroleo Ltda. | Brazil |
| Constellation II Limited | Cayman Islands |
| Covent Garden - Servicos e Marketing, Sociedade Unipessoal Lda | Portugal |
| Deepwater Drilling II L.L.C. | Delaware |
| Deepwater Drilling L.L.C. | Delaware |
| Deepwater Drilling North Africa LLC - Free Zone | Egypt |
| Deepwater Pacific 1 Inc. | British Virgin Islands |
| Deepwater Pacific 2 Inc. | British Virgin Islands |
| DR Stewart Limited | Cayman Islands |
| Eaton Industries of Houston, Inc. | Texas |
| Elder Trading Co. | Liberia |
| Entities Holdings, Inc. | Delaware |
| Falcon Atlantic Ltd. | Cayman Islands |
| Fortress Energy Services LLC | Oman |
| Global Dolphin Drilling Company Limited | India |
| Global Marine Inc. | Delaware |
| Global Mining Resources, Inc. | Philippines |
| Global Offshore Drilling Limited | Nigeria |
| GlobalSantaFe (Labuan) Inc. | Malaysia |
| GlobalSantaFe (Norge) AS | Norway |
| GlobalSantaFe Arctic Ltd. | Nova Scotia |
| GlobalSantaFe B.V. | Netherlands |
| GlobalSantaFe Beaufort Sea Inc. | Delaware |
| GlobalSantaFe C.R. Luigs Limited | England & Wales |
| GlobalSantaFe Campeche Holdings LLC | Delaware |
| GlobalSantaFe Caribbean Inc. | California |
| GlobalSantaFe Communications, Inc. | Delaware |
| GlobalSantaFe Corporate Services Inc. | Delaware |
| GlobalSantaFe de Venezuela Inc. | Delaware |
| GlobalSantaFe Deepwater Drilling LLC | Delaware |
| GlobalSantaFe Denmark Holdings ApS | Denmark |
| GlobalSantaFe Development Inc. | California |
| GlobalSantaFe do Brasil Ltda. | Brazil |
| GlobalSantaFe Drilling (N.A.) N.V. | Netherlands Antilles |
| GlobalSantaFe Drilling (South Atlantic) Inc. | Cayman Islands |
| GlobalSantaFe Drilling Company | Delaware |
| GlobalSantaFe Drilling Company (Canada) Limited | Nova Scotia |
| GlobalSantaFe Drilling Company (North Sea) Limited | England & Wales |
| GlobalSantaFe Drilling Company (Overseas) Limited | England & Wales |
| GlobalSantaFe Drilling Mexico, S. de R.L. de C.V. | Mexico |
| GlobalSantaFe Drilling Operations Inc. | Cayman Islands |
| GlobalSantaFe Drilling Services (North Sea) Limited | England & Wales |
| GlobalSantaFe Drilling Trinidad LLC | Delaware |
| GlobalSantaFe Drilling Venezuela, C.A. | Venezuela |
| GlobalSantaFe Financial Services (Luxembourg) S.a.r.l. | Luxembourg |
| GlobalSantaFe GOM Services Inc. | British Virgin Islands |
| GlobalSantaFe Group Financing Limited Liability Company | Hungary |
| GlobalSantaFe Holding Company (North Sea) Limited | England & Wales |
| GlobalSantaFe Hungary Services Limited Liability Company | Hungary |
| GlobalSantaFe International Drilling Corporation | Bahamas |
| GlobalSantaFe International Drilling Inc. | British Virgin Islands |
| GlobalSantaFe International Services Inc. | Panama |
| GlobalSantaFe Leasing Corporation | Bahamas |
| GlobalSantaFe Leasing Limited | Cayman Islands |
| GlobalSantaFe Mexico Holdings LLC | Delaware |
| GlobalSantaFe Nederland B.V. | Netherlands |
| GlobalSantaFe Offshore Services Inc. | Cayman Islands |
| GlobalSantaFe Operations (Australia) Pty Ltd | Western Australia |
| GlobalSantaFe Operations (BVI) Inc. | Cayman Islands |
| GlobalSantaFe Operations (Mexico) LLC | Delaware |
| GlobalSantaFe Operations Inc. | Cayman Islands |
| GlobalSantaFe Overseas Limited | Bahamas |
| GlobalSantaFe Saudi Arabia Ltd. | British Virgin Islands |
| GlobalSantaFe Services (BVI) Inc. | Cayman Islands |
| GlobalSantaFe Services Netherlands B.V. | Netherlands |
| GlobalSantaFe Servicios de Venezuela, C.A. | Venezuela |
| GlobalSantaFe South America LLC | Delaware |
| GlobalSantaFe Southeast Asia Drilling Pte. Ltd. | Singapore |
| GlobalSantaFe Tampico, S. de R.L. de C.V. | Mexico |
| GlobalSantaFe Techserv (North Sea) Limited | England & Wales |
| GlobalSantaFe U.S. Drilling Inc. | Delaware |
| GlobalSantaFe U.S. Holdings Inc. | Delaware |
| GlobalSantaFe West Africa Drilling Limited | Bahamas |
| GSF Caymans Holdings Inc. | Cayman Islands |
| GSF Leasing Services GmbH | Switzerland |
| Hellerup Finance International | Ireland |
| Indigo Drilling Limited | Nigeria |
| Intermarine Services (International) Limited | Bahamas |
| Intermarine Services Inc. | Texas |
| Intermarine Servicos Petroliferos Ltda. | Brazil |
| International Chandlers, Inc. | Texas |
| Key Perfuracoes Maritimas Limitada | Brazil |
| Minerales Submarinos Mexicanos S.A. | Mexico |
| Nickel Development Inc. | Philippines |
| NRB Drilling Services Limited | Nigeria |
| Oilfield Services, Inc. | Cayman Islands |
| P.T. Santa Fe Supraco Indonesia | Indonesia |
| Platform Capital N.V. | Netherlands Antilles |
| Platform Financial N.V. | Netherlands Antilles |
| PT. Transocean Indonesia | Indonesia |
| R&B Falcon (A) Pty Ltd | Western Australia |
| R&B Falcon (Caledonia) Limited | England & Wales |
| R&B Falcon (Ireland) Limited | Ireland |
| R&B Falcon (M) Sdn. Bhd. | Malaysia |
| R&B Falcon (U.K.) Limited | England & Wales |
| R&B Falcon B.V. | Netherlands |
| R&B Falcon Deepwater (UK) Limited | England & Wales |
| R&B Falcon Drilling (International & Deepwater) Inc. LLC | Delaware |
| R&B Falcon Drilling Co. LLC | Oklahoma |
| R&B Falcon Drilling Limited LLC | Oklahoma |
| R&B Falcon Exploration Co., LLC | Oklahoma |
| R&B Falcon International Energy Services B.V. | Netherlands |
| R&B Falcon Offshore Limited, LLC | Oklahoma |
| R&B Falcon, Inc. LLC | Oklahoma |
| Ranger Insurance Limited | Cayman Islands |
| RB Mediterranean Ltd. | Cayman Islands |
| RBF Drilling Co. LLC | Oklahoma |
| RBF Drilling Services, Inc. LLC | Oklahoma |
| RBF Exploration LLC | Delaware |
| RBF Finance Co. | Delaware |
| RBF Rig Corporation, LLC | Oklahoma |
| Reading & Bates Coal Co., LLC | Nevada |
| Reading & Bates Demaga Perfuraçoes Ltda. | Brazil |
| Resource Rig Supply Inc. | Delaware |
| Rig 127 Limited | Cayman Islands |
| Rig 134 Limited | Cayman Islands |
| Safemal Drilling Sdn. Bhd. | Malaysia |
| Santa Fe Braun Inc. | Delaware |
| Santa Fe Construction Company | Delaware |
| Santa Fe Drilling Company (U.K.) Limited | England & Wales |
| Santa Fe Drilling Company of Venezuela, C.A. | California |
| Santa Fe Servicos de Perfuracao Limitada | Brazil |
| Saudi Drilling Company Limited | Saudi Arabia |
| SDS Offshore Limited | England |
| Sedco Forex Holdings Limited | Cayman Islands |
| Sedco Forex International Services, S.A. | Panama |
| Sedco Forex International, Inc. | Panama |
| Sedco Forex of Nigeria Limited | Nigeria |
| Sedco Forex Technology, Inc. | Panama |
| Sedneth Panama, S.A. | Panama |
| Sefora Maritime Limited | Cayman Islands |
| Services Petroliers Transocean | France |
| Servicios Petroleros Santa Fe, S.A. | Venezuela |
| Shore Services, LLC | Texas |
| Sonat Offshore do Brasil Perfuracoes Maritimas Ltda. | Brazil |
| Sonat Offshore S.A. | Panama |
| T. I. International Mexico S. de R.L. de C.V. | Mexico |
| TODDI Holdings LLC | Delaware |
| Transocean 1 AS | Norway |
| Transocean Africa Drilling Limited | Cayman Islands |
| Transocean Alaskan Ventures Inc. | Delaware |
| Transocean Andaman Limited | Cayman Islands |
| Transocean Ao Thai Limited | Cayman Islands |
| Transocean Arctic Limited | Cayman Islands |
| Transocean Asia Services Sdn Bhd | Malaysia |
| Transocean Barents ASA | Norway |
| Transocean Benefit Services Srl | Barbados |
| Transocean Brasil Ltda. | Brazil |
| Transocean Britannia Limited | Cayman Islands |
| Transocean Canada Co. | Nova Scotia |
| Transocean Canada Drilling Services Ltd. | Nova Scotia |
| Transocean Construction Management Ltd. | Cayman Islands |
| Transocean Corporate Services Limited | Cayman Islands |
| Transocean Cunningham LLC | Delaware |
| Transocean Cyprus Capital Management Public Limited | Cyprus |
| Transocean Cyprus Drilling Operations Public Limited | Cyprus |
| Transocean Deepwater Drilling Services Limited | Cayman Islands |
| Transocean Deepwater Frontier Limited | Cayman Islands |
| Transocean Deepwater Holdings Limited | Cayman Islands |
| Transocean Deepwater Inc. | Delaware |
| Transocean Deepwater Mauritius | Mauritius |
| Transocean Deepwater Nautilus Limited | Cayman Islands |
| Transocean Deepwater Pathfinder Limited | Cayman Islands |
| Transocean Deepwater Seafarer Services Limited | Cayman Islands |
| Transocean Discoverer 534 LLC | Delaware |
| Transocean Drilling (Nigeria) Ltd. | Nigeria |
| Transocean Drilling (U.S.A.) Inc. | Texas |
| Transocean Drilling Israel Ltd. | Cayman Islands |
| Transocean Drilling Limited | Scotland |
| Transocean Drilling Namibia Inc. | Cayman Islands |
| Transocean Drilling Offshore International Limited | Cayman Islands |
| Transocean Drilling Offshore S.a.r.l. | Luxembourg |
| Transocean Drilling Offshore Ventures Limited | Cayman Islands |
| Transocean Drilling Resources Limited | Cayman Islands |
| Transocean Drilling Sdn. Bhd. | Malaysia |
| Transocean Drilling Services (India) Private Limited | India |
| Transocean Drilling Services Inc. | Delaware |
| Transocean Drilling Services Offshore Inc. | British Virgin Islands |
| Transocean Drilling Turkey Limited | Cayman Islands |
| Transocean Drilling U.K. Limited | Scotland |
| Transocean Eastern Pte. Ltd. | Singapore |
| Transocean Enterprise Inc. | Delaware |
| Transocean Entities Holdings GmbH | Switzerland |
| Transocean Finance Limited | Cayman Islands |
| Transocean Financing GmbH | Switzerland |
| Transocean GSF Monitor Limited | Cayman Islands |
| Transocean Holdings LLC | Delaware |
| Transocean Hungary Holdings LLC | Hungary |
| Transocean Inc. | Cayman Islands |
| Transocean Inc. Luxembourg Asset Management S.C.S. | Luxembourg |
| Transocean India Limited | Cayman Islands |
| Transocean Innovation Labs Ltd. | Cayman Islands |
| Transocean International Drilling Limited | Cayman Islands |
| Transocean International Holdings Limited | Cayman Islands |
| Transocean International Resources, Limited | British Virgin Islands |
| Transocean Investimentos Ltda. | Brazil |
| Transocean Investments S.a.r.l. | Luxembourg |
| Transocean Labrador Limited | Cayman Islands |
| Transocean Magellan Limited | Cayman Islands |
| Transocean Management Inc. | Delaware |
| Transocean Management Ltd. | Switzerland |
| Transocean Marine Limited | Cayman Islands |
| Transocean Mediterranean LLC | Delaware |
| Transocean Nautilus Limited | Cayman Islands |
| Transocean North Africa Inc. | Cayman Islands |
| Transocean North Sea Limited | Bahamas |
| Transocean Norway Drilling AS | Norway |
| Transocean Norway Operations AS | Norway |
| Transocean Norway Operations Support AS | Norway |
| Transocean Offshore (Cayman) Inc. | Cayman Islands |
| Transocean Offshore (North Sea) Ltd. | Cayman Islands |
| Transocean Offshore (U.K.) Inc. | Delaware |
| Transocean Offshore Canada Services Ltd. | Nova Scotia |
| Transocean Offshore Caribbean Sea, L.L.C. | Delaware |
| Transocean Offshore Deepwater Drilling Inc. | Delaware |
| Transocean Offshore Deepwater Holdings Limited | Cayman Islands |
| Transocean Offshore Drilling Limited | England & Wales |
| Transocean Offshore Drilling Services LLC | Delaware |
| Transocean Offshore Europe Limited | Cayman Islands |
| Transocean Offshore Gulf of Guinea II Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea III Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea IV Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea IX Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea V Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea VI Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea VII Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea VIII Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea X Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XI Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XII Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XIII Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XIV Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XV Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XVI Limited | British Virgin Islands |
| Transocean Offshore Gulf of Guinea XVII Limited | British Virgin Islands |
| Transocean Offshore Holdings Limited | Cayman Islands |
| Transocean Offshore International Limited | Cayman Islands |
| Transocean Offshore International Ventures Limited | Cayman Islands |
| Transocean Offshore Limited | Cayman Islands |
| Transocean Offshore Management Services Limited | Cayman Islands |
| Transocean Offshore Nigeria Limited | Nigeria |
| Transocean Offshore Norway Inc. | Delaware |
| Transocean Offshore Norway Services AS | Norway |
| Transocean Offshore PR Limited | Cayman Islands |
| Transocean Offshore Services Ltd. | Cayman Islands |
| Transocean Offshore USA Inc. | Delaware |
| Transocean Offshore Ventures Inc. | Delaware |
| Transocean Onshore Support Services Limited | Scotland |
| Transocean Pacific Drilling Holdings Limited | Cayman Islands |
| Transocean Pacific Drilling Inc. | British Virgin Islands |
| Transocean Payroll Services SRL | Barbados |
| Transocean Perfuracoes Ltda. | Brazil |
| Transocean Rig 140 Limited | Cayman Islands |
| Transocean Rig Management Limited | Cayman Islands |
| Transocean Rig Services Offshore LLC | Delaware |
| Transocean Sedco Forex Ventures Limited | Cayman Islands |
| Transocean Services AMA JLT | Dubai Multi Commodities Centre |
| Transocean Services AS | Norway |
| Transocean Services Offshore LLC | Delaware |
| Transocean Services UK Limited | England & Wales |
| Transocean Seven Seas LLC | Delaware |
| Transocean Siam Driller Limited | Cayman Islands |
| Transocean Spitsbergen ASA | Norway |
| Transocean Support Services Limited | Cayman Islands |
| Transocean Support Services Nigeria Limited | Nigeria |
| Transocean Support Services Private Limited | India |
| Transocean Technical Services Egypt LLC | Egypt |
| Transocean Technical Services Inc. | Panama |
| Transocean Technology Innovations LLC | Delaware |
| Transocean Treasury Services SRL | Barbados |
| Transocean Trident VI Limited | Cayman Islands |
| Transocean Trident XVII Limited | Cayman Islands |
| Transocean UK Limited | England & Wales |
| Transocean West Africa Holdings Limited | Cayman Islands |
| Transocean West Africa South Limited | Cayman Islands |
| Transocean Worldwide Inc. | Cayman Islands |
| Trident 4 Limited | Cayman Islands |
| Triton Asset Leasing GmbH | Switzerland |
| Triton Drilling Limited | Cayman Islands |
| Triton Drilling Mexico LLC | Delaware |
| Triton Financing LLC | Hungary |
| Triton Holdings Limited | British Virgin Islands |
| Triton Hungary Asset Management LLC | Hungary |
| Triton Hungary Investments 1 Limited Liability Company | Hungary |
| Triton Industries, Inc. | Panama |
| Triton Management Services LLC | Hungary |
| Triton Nautilus Asset Leasing GmbH | Switzerland |
| Triton Nautilus Asset Management LLC | Hungary |
| Triton Offshore Leasing Services Limited | Malaysia |
| Triton Pacific Limited | England |
| TSSA - Servicos de Apoio, Lda. | Angola |
| Turnkey Ventures de Mexico Inc. | Delaware |
| Wilrig Offshore (UK) Limited | England & Wales |