| Name | | State or Other Jurisdiction of Incorporation
or Organization |
| Alpha Achiever Company | | Cayman Islands |
| Alpha Admiral Company | | Cayman Islands |
| Alpha Archer Company | | Cayman Islands |
| Alpha Aurora Company | | Cayman Islands |
| Alpha Falcon Company | | Cayman Islands |
| Alpha Falcon Drilling Company | | Cayman Islands |
| Alpha Int’l Drilling Company S.à r.l | | Luxembourg |
| Alpha Leasing Drilling Limited | | Mauritius |
| Alpha Mako Company | | Cayman Islands |
| Alpha Manta Company | | Cayman Islands |
| Alpha Offshore Drilling (S) Pte Ltd. | | Singapore |
| Alpha Offshore Drilling Services Company | | Cayman Islands |
| Alpha Offshore Drilling Services Company (Ghana) Limited | | Ghana |
| Alpha Offshore Intl Leasing | | England and Wales (UK) |
| Alpha Orca Company | | Cayman Islands |
| Alpha South Pacific Holding Company | | Cayman Islands |
| Atlantic Maritime Services LLC | | Delaware (USA) |
| Atwood Advantage S.à r.l | | Luxembourg |
| Atwood Australian Waters Drilling Pty Limited | | Australia |
| Atwood Beacon S.à r.l | | Luxembourg |
| Atwood Deep Seas, Ltd. | | Texas (USA) |
| Atwood Drilling LLC | | Delaware (USA) |
| Atwood Hunter LLC | | Delaware (USA) |
| Atwood Malta Holding Company Limited | | Malta |
| Atwood Oceanics (M) Sdn. Bhd. | | Malaysia |
| Atwood Oceanics Australia Pty Limited | | Australia |
| Atwood Oceanics Drilling Mexico SRLCV | | Mexico |
| Atwood Oceanics Global Limited | | Cayman Islands |
| Atwood Oceanics International Limited | | Cayman Islands |
| Atwood Oceanics Leasing Limited | | Labuan |
| Atwood Oceanics LLC | | Texas (USA) |
| Atwood Oceanics Malta Limited | | Malta |
| Atwood Oceanics Management, LLC | | Delaware (USA) |
| Atwood Oceanics Pacific Limited | | Cayman Islands |
| Atwood Oceanics Services Mexico S. de R.L. de C.V | | Mexico |
| Atwood Offshore Drilling Limited | | Hong Kong |
| Atwood Offshore Labor Company | | Cayman Islands |
| Atwood Offshore Worldwide Limited | | Cayman Islands |
| Aurora Offshore Services Gmbh | | Germany |
| C.A. Foravep, Forasol Venezolana de Perforaciones | | Venezuela |
| Clearways Offshore Drilling Sdn. Bhd. | | Malaysia |
| DrillQuest International Offshore Drilling Services Co. | | Cayman Islands |
| DrillQuest Offshore Company | | Cayman Islands |
| Durand Maritime S.A.S. (In Liquidation) | | France |
| ENSCO (Barbados) Limited | | Cayman Islands |
| ENSCO (Bermuda) Limited | | Bermuda |
| Ensco (Myanmar) Limited | | Myanmar |
| Ensco (Thailand) Limited | | Thailand |
| ENSCO Arabia Co. Ltd. | | Saudi Arabia |
| ENSCO Asia Company LLC | | Texas (USA) |
| ENSCO Asia Pacific Pte. Limited | | Singapore |
| Ensco Associates Company | | Cayman Islands |
| ENSCO Australia Pty. Limited | | Australia |
| ENSCO Capital Limited | | Cayman Islands / United Kingdom |
| ENSCO Corporate Resources LLC | | Delaware (USA) |
| ENSCO de Venezuela, S.R.L. | | Venezuela |
| Ensco Deepwater Drilling Limited | | England and Wales (UK) |
| ENSCO Deepwater USA II LLC | | Delaware (USA) |
| ENSCO Development Limited | | Cayman Islands |
| Ensco do Brasil Petróleo e Gás Ltda. | | Brazil |
| ENSCO Drilling (Caribbean), Inc. | | Cayman Islands |
| ENSCO Drilling Company (Nigeria) Ltd. | | Nigeria |
| ENSCO Drilling Company LLC | | Delaware (USA) |
| Ensco Drilling I Ltd. | | Cayman Islands |
| ENSCO Drilling Mexico LLC | | Delaware (USA) |
| Ensco Endeavors Limited | | Cayman Islands / United Kingdom |
| Ensco France S.A.S. | | France |
| ENSCO Gerudi (M) Sdn. Bhd. | | Malaysia |
| ENSCO Global GmbH | | Switzerland |
| Ensco Global II Ltd. | | Cayman Islands |
| ENSCO Global Investments LP | | England and Wales (UK) |
| Ensco Global IV Ltd | | British Virgin Islands |
| ENSCO Global Limited | | Cayman Islands / United Kingdom |
| ENSCO Global Resources Limited | | England and Wales (UK) |
| Ensco Holdco Limited | | England and Wales (UK) |
| ENSCO Holding Company | | Delaware (USA) |
| Ensco Holdings I Ltd. | | Cayman Islands |
| Ensco Holdings II Ltd. | | Delaware (USA) |
| Ensco Holdings III LLC | | Delaware (USA) |
| ENSCO Holland B.V. | | Netherlands |
| Ensco Incorporated | | Texas (USA) |
| Ensco Intercontinental GmbH | | Switzerland |
| ENSCO International Incorporated | | Delaware (USA) |
| Ensco International Ltd. | | British Virgin Islands / United Kingdom |
| Ensco International Management GP LLC | | Delaware (USA) |
| Ensco International Management LP LLC | | Delaware (USA) |
| ENSCO Investments LLC | | Nevada (USA) / United Kingdom |
| Ensco Jersey Finance Limited | | Jersey / United Kingdom |
| ENSCO Labuan Limited | | Malaysia |
| ENSCO Limited | | Cayman Islands |
| Ensco Management Corp | | British Virgin Islands |
| ENSCO Maritime Limited | | Bermuda |
| Ensco Mexico Services S.de R.L. | | Mexico |
| Ensco North America LLC | | Delaware (USA) |
| Ensco Ocean 1 Company | | Cayman Islands |
| Ensco Ocean 2 Company | | Cayman Islands |
| ENSCO Oceanics Company LLC | | Delaware (USA) |
| ENSCO Oceanics International Company | | Cayman Islands |
| ENSCO Offshore LLC | | Delaware (USA) |
| ENSCO Offshore International Company | | Cayman Islands |
| ENSCO Offshore International Holdings Limited | | Cayman Islands / United Kingdom |
| ENSCO Offshore International Inc. | | Marshall Islands |
| Ensco Offshore International LLC | | Delaware (USA) |
| Ensco Offshore Petróleo e Gás Ltda. | | Brazil |
| Ensco Offshore Services LLC | | Delaware (USA) |
| ENSCO Offshore U.K. Limited | | England and Wales (UK) |
| ENSCO Overseas Limited | | Cayman Islands |
| ENSCO Services Limited | | England and Wales (UK) |
| ENSCO Services LLC | | Delaware (USA) |
| Ensco South Pacific LLC | | Delaware (USA) |
| Ensco Transcontinental I LLC | | Nevada (USA) |
| Ensco Transcontinental II LLC | | Nevada (USA) |
| Ensco Transcontinental II LP | | England and Wales (UK) |
| Ensco Transcontinental LP | | England and Wales (UK) |
| Ensco Transnational I Limited | | Cayman Islands |
| Ensco Transnational II Limited | | Cayman Islands |
| Ensco Transnational III Limited | | Cayman Islands |
| Ensco Transnational Limited | | Cayman Islands |
| ENSCO U.K. Limited | | England and Wales (UK) |
| Ensco UK Drilling Limited | | England and Wales (UK) |
| ENSCO United Incorporated | | Delaware (USA) |
| Ensco Universal Holdings I Ltd. | | Cayman Islands / United Kingdom |
| Ensco Universal Holdings II Ltd. | | Cayman Islands / United Kingdom |
| ENSCO Universal Limited | | England and Wales (UK) |
| Ensco Vistas Limited | | Cayman Islands |
| Ensco Worldwide GmbH | | Switzerland |
| Ensco Worldwide Holdings Ltd. | | Cayman Islands |
| ENSCO Worldwide Investments Lt | | England and Wales (UK) |
| EnscoRowan Ghana Drilling Limited | | Ghana |
| Foradel SDN B.H.D. | | Malaysia |
| Forasub B.V. | | Netherlands/ United Kingdom |
| Forinter Limited | | Jersey / United Kingdom |
| Great White Shark Limited | | Gibraltar |
| Green Turtle Limited | | Gibraltar |
| Inter-Drill Ltd. | | Bahamas |
| International Technical Services LLC | | Delaware (USA) |
| Manatee Limited | | Malta |
| Manta Ray Limited | | Malta |
| Marine Blue Limited | | Gibraltar |
| Ocean Deep Drilling ESV Nigeria Limited | | Nigeria |
| Offshore Drilling Services LLC | | Delaware (USA) |
| P.T. ENSCO Sarida Offshore | | Indonesia |
| Pacific Offshore Labor Company | | Cayman Islands |
| Petroleum International Pte. Ltd. | | Singapore |
| Pride Arabia Co. Ltd. | | Saudi Arabia |
| Pride Foramer S.A.S. | | France |
| Pride Forasol Drilling Nigeria Ltd. | | Nigeria |
| Pride Forasol S.A.S. | | France |
| Pride Global II Ltd | | British Virgin Islands |
| Pride Global Offshore Nigeria Ltd. | | Nigeria |
| Pride International LLC | | Delaware (USA) |
| Pride International Management Co. LP | | Texas (USA) |
| PT Alpha Offshore Drilling | | Indonesia |
| PT Pentawood Offshore Drilling | | Indonesia |
| Ralph Coffman Cayman Limited | | Cayman Islands |
| Ralph Coffman Limited | | Gibraltar |
| Ralph Coffman Luxembourg S.à r.l. | | Luxembourg |
| RCI International, Inc. | | Cayman Islands |
| RD International Services Pte. Ltd. | | Singapore |
| RDC Arabia Drilling, Inc. | | Cayman Islands |
| RDC Holdings Luxembourg S.à r.l. | | Luxembourg |
| RDC Malta Limited | | Malta |
| RDC Offshore Luxembourg S.à r.l. | | Luxembourg |
| RDC Offshore Malta Limited | | Malta |
| RoCal Cayman Limited | | Cayman Islands |
| Rowan 240C#3, Inc. | | Cayman Islands |
| Rowan 350 Slot Rigs, LLC | | Delaware (USA) |
| Rowan Angola Limitada | | Angola |
| Rowan California S.à r.l. | | Luxembourg |
| Rowan Cayman Limited | | Cayman Islands |
| Rowan Companies Limited | | England and Wales (UK) |
| Rowan Companies, LLC | | Delaware (USA) |
| Rowan Deepwater Drilling (Gibraltar) Limited | | Gibraltar |
| Rowan do Brasil Serviços de Perfuração Ltda. | | Brazil |
| Rowan Drilling (Gibraltar) Limited | | Gibraltar |
| Rowan Drilling (Trinidad) Limited | | Cayman Islands |
| Rowan Drilling (U.K.) Limited | | Scotland (UK) |
| Rowan Drilling Cyprus Limited | | Cyprus |
| Rowan Drilling S. de R.L. de C.V | | Mexico |
| Rowan Drilling Services Limited | | Gibraltar |
| Rowan Drilling Services Nigeria Limited | | Nigeria |
| Rowan Egypt Petroleum Services LLC | | Egypt |
| Rowan Finance LLC | | Delaware (USA) |
| Rowan Financial Holdings S.à r.l. | | Luxembourg |
| Rowan Finanz S.à r.l. | | Luxembourg |
| Rowan Global Drilling Services Limited | | Gibraltar |
| Rowan Holdings Luxembourg S.à r.l. | | Luxembourg |
| Rowan International Rig Holdings S.à r.l. | | Luxembourg |
| Rowan Marine Services LLC | | Texas (USA) |
| Rowan Middle East, Inc. | | Cayman Islands |
| Rowan N-Class (Gibraltar) Limited | | Gibraltar |
| Rowan No. 1 Limited | | England and Wales (UK) |
| Rowan No. 2 Limited | | England and Wales (UK) |
| Rowan North Sea, Inc. | | Cayman Islands |
| Rowan Norway Limited | | Gibraltar |
| Rowan Offshore (Gibraltar) Limited | | Gibraltar |
| Rowan Offshore Luxembourg S.à r.l. | | Luxembourg |
| Rowan Relentless Luxembourg S.à r.l. | | Luxembourg |
| Rowan Reliance Luxembourg S.à r.l. | | Luxembourg |
| Rowan Renaissance Luxembourg S.à r.l. | | Luxembourg |
| Rowan Resolute Luxembourg S.à r.l. | | Luxembourg |
| Rowan Rex Limited (Cayman) | | Cayman Islands |
| Rowan Rigs S.à r.l. | | Luxembourg |
| Rowan S. de R.L. de C.V. | | Mexico |
| Rowan Services LLC | | Delaware (USA) |
| Rowan Standard Ghana Limited | | Ghana |
| Rowan US Holdings (Gibraltar) Limited | | Gibraltar |
| Rowandrill Labuan Limited | | Malaysia |
| Rowandrill, LLC | | Texas (USA) |
| Rowandrill Malaysia Sdn. Bhd | | Malaysia |
| Saudi Aramco Rowan Offshore Drilling Company | | Saudi Arabia |
