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Transocean Ltd. (RIG) Subsidiaries, 2025

Transocean Ltd. Subsidiaries

Every subsidiary the company listed in Exhibit 21 of its annual reports, newest list first (18 lists). Names and jurisdictions are as filed.

  • 2025-02-18: Subsidiary Entity; Jurisdiction Jurisdiction.
  • 2025-02-18: Subsidiary 15375 Memorial Corporation; Jurisdiction Delaware.
  • 2025-02-18: Subsidiary Aguas Profundas, Limitada; Jurisdiction Angola.
  • 2025-02-18: Subsidiary Angola Deepwater Drilling Company (Offshore Services) Ltd; Jurisdiction Bermuda.
Annual report filedSubsidiaryJurisdiction
2025-02-18EntityJurisdiction
2025-02-1815375 Memorial CorporationDelaware
2025-02-18Aguas Profundas, LimitadaAngola
2025-02-18Angola Deepwater Drilling Company (Offshore Services) LtdBermuda
2025-02-18AngoSantaFe - Prestacao de Servicos Petroliferos, LimitadaAngola
2025-02-18Arcade Drilling ASNorway
2025-02-18Asie Sonat Offshore Sdn. Bhd.Malaysia
2025-02-18Challenger Minerals Inc.California
2025-02-18Deepwater Drilling (Transocean Ghana) LTDGhana
2025-02-18Deepwater Drilling North Africa LLC - Free ZoneEgypt
2025-02-18Deepwater Pacific 1 LimitedBermuda
2025-02-18Deepwater Supply Inc.Delaware
2025-02-18Drillship Alonissos Owners LimitedBermuda
2025-02-18Drillship Hydra Owners LimitedBermuda
2025-02-18Drillship Paros Owners LimitedBermuda
2025-02-18Drillship Skopelos Owners LimitedBermuda
2025-02-18Drillship Skyros Owners LimitedBermuda
2025-02-18Entities Holdings, Inc.Delaware
2025-02-18Global Marine Inc.Delaware
2025-02-18Global Offshore Drilling LimitedNigeria
2025-02-18GlobalSantaFe B.V.Netherlands
2025-02-18GlobalSantaFe Denmark Holdings ApSDenmark
2025-02-18GlobalSantaFe Drilling (N.A.) N.V.Netherlands Antilles
2025-02-18GlobalSantaFe Drilling CompanyDelaware
2025-02-18GlobalSantaFe Drilling Mexico, S. de R.L. de C.V.Mexico
2025-02-18GlobalSantaFe Drilling Trinidad LLCDelaware
2025-02-18GlobalSantaFe Drilling Venezuela, C.A.Venezuela
2025-02-18GlobalSantaFe Financial Services (Luxembourg) S.a.r.l.Luxembourg
2025-02-18GlobalSantaFe Group Financing Limited Liability CompanyHungary
2025-02-18GlobalSantaFe Hungary Services Limited Liability CompanyHungary
2025-02-18GlobalSantaFe International Drilling Corporation LimitedBermuda
2025-02-18GlobalSantaFe International Drilling LimitedBermuda
2025-02-18GlobalSantaFe International Services LimitedBermuda
2025-02-18GlobalSantaFe Nederland B.V.Netherlands
2025-02-18GlobalSantaFe Offshore Services LimitedBermuda
2025-02-18GlobalSantaFe Operations (Mexico) LLCDelaware
2025-02-18GlobalSantaFe Saudi Arabia Ltd.Bermuda
2025-02-18GlobalSantaFe Services (BVI) LimitedBermuda
2025-02-18GlobalSantaFe Services Netherlands B.V.Netherlands
2025-02-18GlobalSantaFe Servicios de Venezuela, C.A.Venezuela
2025-02-18GlobalSantaFe South America LLCDelaware
2025-02-18GlobalSantaFe Tampico, S. de R.L. de C.V.Mexico
2025-02-18GlobalSantaFe U.S. Holdings Inc.Delaware
2025-02-18GSF Leasing Services GmbHSwitzerland
2025-02-18Indigo Drilling LimitedNigeria
2025-02-18Inteliwell LimitedEngland & Wales
2025-02-18Liquila DWA LLCHungary
2025-02-18Liquila Ventures Ltd.Cayman Islands
2025-02-18Ocean Rig Canada Inc.Nova Scotia
2025-02-18Ocean Rig Cubango Operations Inc.Cayman Islands
2025-02-18EntityJurisdiction
2025-02-18Ocean Rig Management LimitedBermuda
2025-02-18Ocean Rig Operations LimitedBermuda
2025-02-18Ocean Rig UDW LimitedBermuda
2025-02-18Offshore Ghana Transocean LTDGhana
2025-02-18Olympia Rig Angola Holding, S.A.Angola
2025-02-18Olympia Rig Angola, LimitadaAngola
2025-02-18OR Norge Operations Inc.Marshall Islands
2025-02-18Orion Holdings (Cayman) LimitedCayman Islands
2025-02-18Orion RigCo (Cayman) LimitedCayman Islands
2025-02-18Platform Capital N.V.Netherlands Antilles
2025-02-18Platform Financial N.V.Netherlands Antilles
2025-02-18Primelead LimitedCyprus
2025-02-18PT SantaFe Subsea IndonesiaIndonesia
2025-02-18PT. Transocean IndonesiaIndonesia
2025-02-18R&B Falcon (A) Pty LtdWestern Australia
2025-02-18R&B Falcon (Caledonia) LimitedEngland & Wales
2025-02-18R&B Falcon (U.K.) LimitedEngland & Wales
2025-02-18R&B Falcon Exploration Co., LLCOklahoma
2025-02-18Ranger Insurance LimitedBermuda
2025-02-18RBF Rig Corporation, LLCDelaware
2025-02-18Reading & Bates Coal Co., LLCNevada
2025-02-18Safemal Drilling Sdn. Bhd.Malaysia
2025-02-18Santa Fe Braun Inc.Delaware
2025-02-18Santa Fe Construction CompanyDelaware
2025-02-18Santa Fe Drilling Company of Venezuela, C.A.California
2025-02-18Saudi Drilling Company LimitedSaudi Arabia
2025-02-18Sedco Forex International LimitedBermuda
2025-02-18Services Petroliers TransoceanFrance
2025-02-18Servicios Petroleros Santa Fe, S.A.Venezuela
2025-02-18Songa Offshore Delta LimitedCyprus
2025-02-18Songa Offshore Drilling LimitedCyprus
2025-02-18Songa Offshore Enabler LimitedCyprus
2025-02-18Songa Offshore Encourage LimitedCyprus
2025-02-18Songa Offshore Endurance LimitedCyprus
2025-02-18Songa Offshore Equinox LimitedCyprus
2025-02-18Songa Offshore Management LimitedCyprus
2025-02-18Songa Offshore Pte. Ltd.Singapore
2025-02-18Songa Offshore Rig 2 ASNorway
2025-02-18Songa Offshore Rig 3 ASNorway
2025-02-18Songa Offshore Saturn LimitedCyprus
2025-02-18Songa Offshore SECyprus
2025-02-18Songa Offshore T & P Cyprus LimitedCyprus
2025-02-18T. I. International Mexico, S. de R.L. de C.V.Mexico
2025-02-18TILAM Holdings LimitedBermuda
2025-02-18Transocean Africa Drilling LimitedBermuda
2025-02-18Transocean Aquila LimitedBermuda
2025-02-18Transocean Asia Services Sdn BhdMalaysia
2025-02-18Transocean Asset Holdings 1 LimitedBermuda
2025-02-18Transocean Asset Holdings 2 LimitedBermuda

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