EX-21 2 rdc-12312017x10kexhibit21.htm EXHIBIT 21 Exhibit
Exhibit 21

ROWAN COMPANIES PLC
LIST OF SUBSIDIARIES
As of December 31, 2017
Company Name
Jurisdiction(s)
Atlantic Maritime Services LLC (fka Atlantic Maritime Services, Inc.)
Delaware
British American Offshore Limited
England & Wales
Great White Shark Limited
Gibraltar
Green Turtle Limited
Gibraltar
Manatee Limited
Malta
Manta Ray Limited
Malta
Marine Blue Limited
Gibraltar
Ralph Coffman Cayman Limited (fka Rowan S116E#3, Inc.)
Cayman Islands
Ralph Coffman Limited
Gibraltar
Ralph Coffman Luxembourg S.à r.l. (fka Rowan Financement 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 (fka RDC (Gibraltar) Limited)
Malta
RDC Offshore Luxembourg S.à r.l.
Luxembourg
RDC Offshore Malta Limited (fka RDC Offshore (Gibraltar) Limited)
Malta
RoCal Cayman Limited (fka RCI Drilling International, Inc.)
Cayman Islands
Rowan 240C#3, Inc.
Cayman Islands
Rowan 350 Slot Rigs, Inc. (fka RDC Qatar, Inc.)
Delaware
Rowan Angola Limitada
Angola
Rowan Austria GmbH
Austria
Rowan California S.à r.l.
Luxembourg
Rowan Cayman Limited
Cayman Islands
Rowan Companies, Inc.
Delaware
Rowan Deepwater Drilling (Gibraltar) Limited
Gibraltar
Rowan do Brasil Servicos de Perfuraçao Ltda.
Brazil
Rowan Drilling Cyprus Limited
Cyprus
Rowan Drilling (Gibraltar) Limited
Gibraltar
Rowan Drilling (Trinidad) Limited
Cayman Islands
Rowan Drilling Services Limited (fka Rowan Labor (Gibraltar) Limited)
Gibraltar
Rowan Drilling Services Nigeria Limited
Nigeria
Rowan Drilling (U.K.) Limited
Scotland
Rowan Drilling US Limited
England & Wales
Rowan Egypt Petroleum Services L.L.C.
Egypt
Rowan Finance LLC
Delaware
Rowan Financial Holdings S.à r.l.
Luxembourg
Rowan Finanz S.à r.l.
Luxembourg
Rowan Global Drilling Services Limited
Gibraltar
Rowan Gorilla V (Gibraltar) Limited
Gibraltar
Rowan Gorilla VII (Gibraltar) Limited
Gibraltar



Exhibit 21

Company Name
Jurisdiction(s)
Rowan Holdings Luxembourg S.à r.l.
Luxembourg
Rowan International Rig Holdings S.à r.l.
Luxembourg
Rowan Marine Services, Inc.
Texas
Rowan Middle East, Inc.
Cayman Islands
Rowan N-Class (Gibraltar) Limited
Gibraltar
Rowan No. 1 Limited
England & Wales
Rowan No. 2 Limited
England & Wales
Rowan North Sea, Inc.
Cayman Islands
Rowan Norway Limited (fka Rowan (Gibraltar) Limited)
Gibraltar
Rowan Offshore (Gibraltar) Limited
Gibraltar
Rowan Offshore Luxembourg S.à r.l.
Luxembourg
Rowan Petroleum, Inc.
Texas
Rowan Relentless Limited
Gibraltar
Rowan Relentless Luxembourg S.à r.l. (fka Rowan Finanzeieren S.à r.l.)
Luxembourg
Rowan Reliance Limited
Gibraltar
Rowan Reliance Luxembourg S.à r.l.
Luxembourg
Rowan Resolute Limited
Gibraltar
Rowan Renaissance Luxembourg S.à r.l.
Luxembourg
Rowan Resolute Luxembourg S.à r.l.
Luxembourg
Rowan Rex Limited
Cayman Islands
Rowan Rigs S.à r.l. (fka Lionfish Luxembourg S.à r.l.)
Luxembourg
Rowan, S. de R.L. de C.V.
Mexico
Rowan Services LLC
Delaware
Rowan (UK) Relentless Limited
England & Wales
Rowan (UK) Reliance Limited
England & Wales
Rowan (UK) Renaissance Limited
England & Wales
Rowan UK Renaissance Onshore Limited
England & Wales
Rowan (UK) Resolute Limited
England & Wales
Rowan US Holdings (Gibraltar) Limited
Gibraltar
Rowandrill, Inc.
Texas
Rowandrill Labuan Limited
Labuan
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