EX-21.1 23 tm2117388d7_ex21-1.htm EXHIBIT 21.1

Exhibit 21.1

List of Subsidiaries of Valaris Limited

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

SKDP 1 Limited |  | Cyprus
SKDP 2 Limited |  | Cyprus
SKDP 3 Limited |  | Cyprus
Societe Maritime de Services SOMASER S.A.S. |  | France
Sonamer Angola Ltd. |  | Bahamas / United Kingdom
Sonamer Drilling International Ltd. |  | Bahamas
Sonamer Jack-Ups Ltd. |  | Bahamas
Sonamer Limited |  | Bahamas / United Kingdom
Sonamer Perfuracoes Ltd. |  | Bahamas
Swiftdrill Malta |  | Malta
Swiftdrill Offshore Drilling Services Co |  | Cayman Islands
Valaris Holdco 1 Limited |  | Bermuda
Valaris Holdco 2 Limited |  | Bermuda
Valaris Holdings 1 |  | Cayman Islands
Valaris Holdings 2 |  | Cayman Islands
Valaris Holdings 3 |  | Cayman Islands
Valaris plc |  | United Kingdom