Exhibit 21.1
SUBSIDIARIES OF OCEAN RIG UDW INC.
Name of Subsidiary | Jurisdiction of Incorporation | |
Drillship Hydra Owners Inc. | Marshall Islands | |
Drillship Paros Owners Inc. | Marshall Islands | |
Drillship Kithira Owners Inc. | Marshall Islands | |
Drillship Skopelos Owners Inc. | Marshall Islands | |
Ocean Rig AS | Norway | |
Ocean Rig UK Ltd. | United Kingdom | |
Ocean Rig Ltd. | United Kingdom | |
Ocean Rig Ghana Ltd. | Ghana | |
Ocean Rig Canada Inc. | Canada | |
Ocean Rig North Sea AS | Norway | |
Ocean Rig 1 Inc. | Marshall Islands | |
Ocean Rig 2 Inc. | Marshall Islands | |
Ocean Rig 1 Shareholders Inc. | Marshall Islands | |
Ocean Rig 2 Shareholders Inc. | Marshall Islands | |
Drill Rigs Holdings Inc. | Marshall Islands | |
Drillships Investment Inc. | Marshall Islands | |
Drillships Holdings Inc. | Marshall Islands | |
Kithira Shareholders Inc. | Marshall Islands | |
Skopelos Shareholders Inc. | Marshall Islands | |
Drillship Hydra Shareholders Inc. | Marshall Islands | |
Drillship Paros Shareholders Inc. | Marshall Islands | |
Ocean Rig Operations Inc. | Marshall Islands | |
Primelead Limited | Cyprus | |
Ocean Rig Black Sea Operations B.V. | The Netherlands | |
Ocean Rig Drilling Services Cooperatief U.A. | The Netherlands | |
Ocean Rig Black Sea Cooperatief U.A | The Netherlands | |
Ocean Rig Deep Water Drilling Ltd. | Nigeria | |
Ocean Rig UDW LLC | Marshall Islands | |
Ocean Rig Drilling Operations B.V. | The Netherlands | |
Algarve Finance Ltd. | Marshall Islands | |
Alley Finance Co. | Marshall Islands | |
Drillship Skiathos Shareholders Inc. | Marshall Islands | |
Drillship Skyros Shareholders Inc. | Marshall Islands | |
Drillship Kythnos Shareholders Inc. | Marshall Islands | |
Drillship Skiathos Owners Inc. | Marshall Islands | |
Drillship Skyros Owners Inc. | Marshall Islands | |
Drillship Kythnos Owners Inc. | Marshall Islands | |
Ocean Rig 1 Greenland Operations Inc. | Marshall Islands | |
Ocean Rig Corcovado Greenland Operations Inc. | Marshall Islands | |
Ocean Rig Olympia Operations Ghana Ltd. | Ghana | |
Tanzania Operations Inc. | Marshall Islands | |
Ocean Rig Do Brasil de Petrolero Ltda. | Brazil |