EX-21.1 2 d313669dex211.htm EX-21.1

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

Name |  | State or Country of Incorporation
Ackerman Holdings C.V. |  | Netherlands
Ackerman Holdings GP LLC |  | United States
Ackerman International Holland B.V. |  | Netherlands
Advanced Wirecloth, LLC |  | United States
AG Holding UK |  | United Kingdom
Aggregate Plant Products Co. |  | United States
Algoa Oil & Pipeline Services Proprietary Limited |  | South Africa
AMC Germany GmbH |  | Germany
American Pipe and Construction International |  | United States
Ameron Holdings Pte. Ltd. |  | Singapore
Ameron International Corporation |  | United States
Ameron Pole Products LLC |  | United States
Ameron Polyplaster Industria E Comercio de Tubos Ltda. |  | Brazil
Ameron Singapore Holding, LLC |  | United States
Ameron Singapore Poly Holdings Pte. Ltd. |  | Singapore
Ameron Trading Holdings Pte. Ltd. |  | Singapore
Ameron Water Transmission Group, LLC |  | United States
Andergauge Limited |  | United Kingdom
Andergauge Redback, LLC |  | United States
Andergauge USA, Inc. |  | United States
APL (UK) Limited |  | United Kingdom
APL do Brasil Ltda. |  | Brazil
APL France SAS |  | France
APL Management Pte Ltd |  | Singapore
APL Norway AS |  | Norway
APL Technology AS |  | Norway
ASEP Group Holding B.V. |  | Netherlands
ASEP Otomotiv Sanayi Ticaret Ltd. |  | Turkey
Aswan National Oilwell Varco LLC |  | United Arab Emirates
Axiom Process Limited |  | United Kingdom
Big Red Tubulars Limited |  | Virgin Islands, British
Black Max Argentina S.A. |  | Argentina
Bolenco Corporation |  | United States
Bondstrand Ltd. |  | Saudi Arabia
Bowen Downhole LLC |  | United States
Bowen Downhole, Inc. |  | United States
Brandt Energy Environmental, L.P. |  | United States
Brandt Interests, Inc. |  | United States
Brandt Oilfield Services |  | Singapore
Brandt Oilfield Services (M) Sdn. Bhd. |  | Malaysia
C.M.A. Canavera S.R.L. |  | Italy
Camco Drilling Group Limited |  | United Kingdom
Chemineer, Inc. |  | United States
CJSC Fidmash |  | Belarus
CJSC Novmash |  | Belarus
Coil Services Middle East LLC |  | United Arab Emirates
Cooperatie Intelliserv Holding U.A. |  | Netherlands
Cooperatie NOV NL U.A. |  | Netherlands
Corporacion Californiana de Tuberias APS, S. de R.L. de C.V. |  | Mexico
Danco AS |  | Norway
Devin International, Inc. |  | United States

1

Name |  | State or Country of Incorporation
Dreco Canada C.V. |  | Netherlands
Dreco Canada GP LLC |  | United States
Dreco Canada L.P. |  | Canada
Dreco Cayman GP LLC |  | United States
Dreco Cayman L.P. |  | Cayman Islands
Dreco DHT Holding B.V. |  | Netherlands
Dreco DHT, Inc. |  | United States
Dreco Eastern Europe ULC |  | Canada
Dreco Energy Holding B.V. |  | Netherlands
Dreco Energy NL Cooperatief U.A. |  | Netherlands
Dreco Energy Services ULC |  | Canada
Dreco Europe Limited |  | United Kingdom
Dreco International Holdings ULC |  | Canada
Dreco Limited |  | United Kingdom
Dreco LLC |  | United States
E.C. Motors, Inc. |  | United States
Elmar Far East Pty Ltd |  | Australia
Energy Equipment Corporation Limited |  | United Kingdom
Enerpro de Mexico, S.A. de C.V. |  | Mexico
Environmental Procedures LLC |  | United States
Fiber Glass System (Suzhou) Co. Ltd. |  | China
Fiber Glass Systems (Harbin) Co., Ltd. |  | China
Fiber Glass Systems Holdings, LLC |  | United States
Fiber Glass Systems Oman L.L.C. |  | Oman
Fiber Glass Systems, L.P. |  | United States
Fiber Glass Trading (Shanghai) Co. Ltd. |  | China
Fiberspar Australia Pty. Ltd. |  | Australia
Fiberspar Corporation |  | United States
FIBERSPAR LINEPIPE CANADA LTD. |  | Canada
FidService, LLC |  | Russian Federation
Fjords Midsund Engineering SRO |  | Czech Republic
Fjords Processing (Shanghai) Co., Ltd. |  | China
Fjords Processing 1 AS |  | Norway
Fjords Processing Australia Pty Ltd |  | Australia
Fjords Processing Canada Inc. |  | Canada
Fjords Processing Colombia S.A.S. |  | Colombia
Fjords Processing France SAS |  | France
Fjords Processing Inc. |  | United States
Fjords Processing International AS |  | Norway
Fjords Processing Limited |  | United Kingdom
Fjords Processing Malaysia Sdn. Bhd. |  | Malaysia
Fjords Processing Middle East DMCC |  | United Arab Emirates
Fjords Processing UK Ltd. |  | United Kingdom
Forth Valley Engineering Limited |  | United Kingdom
Fryma S.a.r.l. |  | France
GP USA Holding, LLC |  | United States
GPEX, L.P. |  | United States
Grant Prideco (Jiangsu) Drilling Products Co., Ltd |  | China
Grant Prideco (Singapore) Pte Ltd |  | Singapore
Grant Prideco AB TCA Holding LLC |  | United States
Grant Prideco Asia (Singapore) Pte Ltd |  | Singapore

2

Name |  | State or Country of Incorporation
Grant Prideco de Venezuela, S.A. |  | Venezuela, Bolivarian Republic of
Grant Prideco European Holding, LLC |  | United States
Grant Prideco Finance, LLC |  | United States
Grant Prideco Holding, LLC |  | United States
Grant Prideco III C. V. |  | Netherlands
Grant Prideco Jersey Limited |  | Jersey Island
Grant Prideco Mauritius Limited |  | Mauritius
Grant Prideco Netherlands B.V. |  | Netherlands
Grant Prideco PC Composites Holdings, LLC |  | United States
Grant Prideco USA, LLC |  | United States
Grant Prideco, Inc. |  | United States
Grant Prideco, L.P. |  | United States
Grant Prideco, S. de R.L. de C.V. |  | Mexico
Greystone Technologies Pty. Ltd. |  | Australia
Hebei Huayouyiji Tuboscope Coating Co., Ltd. |  | China
Hitec AS |  | Norway
Hitec Dreco Limited |  | United Kingdom
Hydralift AmClyde, Inc. |  | United States
Hydralift AS |  | Norway
Hydralift France SAS |  | France
Hydralift Holdings UK Limited |  | United Kingdom
Hydra-Rig, Inc. |  | United States
Inspecciones y Pruebas No Destructivas, S. de R.L. de C.V. |  | Mexico
Intellipipe, Inc. |  | United States
Intelliserv GP Holdings LLC |  | United States
Intelliserv International Holding, Ltd |  | Cayman Islands
Intelliserv Mexico, S. de R.L. de C.V. |  | Mexico
IntelliServ Norway AS |  | Norway
Intelliserv, Inc. |  | United States
Intelliserv, LLC |  | United States
Interval LLC |  | Russian Federation
i-Tec Well Solutions Limited |  | United Kingdom
JiangYin Tuboscope Tubular Development Co., Ltd |  | China
Kolon Fjords Processing Co. Ltd. |  | Korea, Republic of
LSI Asia Pacific Pte. Ltd. |  | Singapore
Merpro Americas, Inc. |  | United States
Merpro Group Limited |  | United Kingdom
Merpro Products Limited |  | United Kingdom
Merpro Tortek Limited |  | United Kingdom
Midsund BUK AS |  | Norway
Mono Group Pension Trustees Limited |  | United Kingdom
Mono Pumps New Zealand Company |  | New Zealand
Monoflo NOV S.A.I.C. |  | Argentina
Moyno de Mexico, S.A. de C.V. |  | Mexico
Moyno, Inc. |  | United States
Mustang Capital Corp. |  | United States
National Oilwell (U.K.) Limited |  | United Kingdom
National Oilwell Algerie |  | Algeria
National Oilwell de Venezuela, C.A. |  | Venezuela, Bolivarian Republic of
National Oilwell DHT, L.P. |  | United States
National Oilwell Middle East Company |  | Canada

3

Name |  | State or Country of Incorporation
National Oilwell Services de Mexico, S.A. de C.V. |  | Mexico
National Oilwell Varco (Beijing) Investment Management Co. Ltd. |  | China
National Oilwell Varco (Thailand) Ltd. |  | Thailand
National Oilwell Varco Almansoori Services |  | United Arab Emirates
National Oilwell Varco Bahrain WLL |  | Bahrain
National Oilwell Varco Belgium SA |  | Belgium
National Oilwell Varco de Bolivia S.R.L. |  | Bolivia
National Oilwell Varco de Chile - Servicios Limitada |  | Chile
National Oilwell Varco Denmark I/S |  | Denmark
National Oilwell Varco do Brasil Ltda. |  | Brazil
National Oilwell Varco Egypt LLC |  | Egypt
National Oilwell Varco Eurasia, LLC |  | Russian Federation
National Oilwell Varco Guatemala, Limitada |  | Guatemala
National Oilwell Varco Holdings LLC |  | United States
National Oilwell Varco Korea Co., Ltd. |  | Korea, Republic of
National Oilwell Varco Mexico, S.A de C.V. |  | Mexico
National Oilwell Varco MSW S.A. |  | Argentina
National Oilwell Varco Muscat L.L.C. |  | Oman
National Oilwell Varco Norway AS |  | Norway
National Oilwell Varco Peru S.R.L. |  | Peru
National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd. |  | China
National Oilwell Varco Poland Sp.z.o.o. |  | Poland
National Oilwell Varco Pte. Ltd. |  | Singapore
National Oilwell Varco Rig Equipment Trading (Shanghai) Co., Ltd. |  | China
National Oilwell Varco Solutions, S.A. de C.V. |  | Mexico
National Oilwell Varco UK Limited |  | United Kingdom
National Oilwell Varco, Inc. |  | United States
National Oilwell Varco, L.P. |  | United States
National-Oilwell Pte. Ltd. |  | Singapore
National-Oilwell Pty. Ltd. |  | Australia
New Holland Cooperatief U.A. |  | Netherlands
NOCL Holding B.V. |  | Netherlands
NOV - Oil Services Angola, LDA. |  | Angola
NOV (Asia), Inc. |  | Mauritius
NOV (Barbados) Holding SRL |  | Barbados
NOV (Barbados) SRL |  | Barbados
NOV (Caymans), Ltd. |  | Cayman Islands
NOV (Malaysia) Sdn. Bhd. |  | Malaysia
NOV Ameron de Mexico, S.de R.L. de C.V. |  | Mexico
NOV Ameron de SLRC, S. de R.L. de C.V. |  | Mexico
NOV APL Limited |  | Cyprus
NOV ASEP Elmar do Brasil Equipamentos E Servicos Para Petroleo Ltda. |  | Brazil
NOV ASEP ELMAR MEXICO, S. DE R.L. DE C.V. |  | Mexico
NOV Australia Pty Ltd |  | Australia
NOV Azerbaijan LLC |  | United States
NOV BLM SAS |  | France
NOV Brandt Europe France |  | France
NOV Brandt Oilfield Services Middle East LLC |  | United Arab Emirates
NOV Completion and Production Solutions Korea Ltd. |  | Korea, Republic of
NOV Completion Tools AS |  | Norway
NOV Completion Tools LLC |  | Russian Federation

4

Name |  | State or Country of Incorporation
NOV Condor, LLC |  | United States
NOV CV1 GP LLC |  | United States
NOV Denmark Cooperatief U.A. |  | Netherlands
NOV Devin Energia Servicios do Brasil Ltda. |  | Brazil
NOV DH de Mexico, S. de R.L. de C.V. |  | Mexico
NOV DHT Canada Holding ULC |  | Canada
NOV DOWNHOLE ALGERIA SERVICES EURL |  | Algeria
NOV Downhole Argentina, LLC |  | United States
NOV Downhole Bolivia S.R.L. |  | Bolivia
NOV Downhole Colombia, LLC |  | United States
NOV Downhole Comercialização de Equipamentos para Petroleo Ltda. |  | Brazil
NOV Downhole Congo, LLC |  | United States
NOV Downhole del Ecuador Cia. Ltda. |  | Ecuador
NOV Downhole Eurasia Limited |  | United Kingdom
NOV Downhole Europe B.V. |  | Netherlands
NOV Downhole Germany GmbH |  | Germany
NOV Downhole Italia S.R.L. |  | Italy
NOV Downhole Kazakhstan, LLC |  | United States
NOV Downhole Malaysia Sdn. Bhd. |  | Malaysia
NOV Downhole Pty Ltd |  | Australia
NOV Downhole Thailand, LLC |  | United States
NOV Dreco GP LLC |  | United States
NOV EAST B.V. |  | Netherlands
NOV Elmar (Middle East) Limited |  | United Kingdom
NOV Elmar NL B.V. |  | Netherlands
NOV Elmar Pte. Ltd. |  | Singapore
NOV Enerflow ULC |  | Canada
NOV EU Acquisition SNC |  | France
NOV Eurasia Holding LLC |  | United States
NOV European Holding LLC |  | United States
NOV Expatriate Services, Inc. |  | United States
NOV Far East B.V. |  | Netherlands
NOV FGS Malaysia Sdn Bhd |  | Malaysia
NOV FGS Singapore (Pte.) Ltd |  | Singapore
NOV Fiber Glass Systems B.V. |  | Netherlands
NOV Fiber Glass Systems Fabricacao De Tubos E Conexoes Ltda |  | Brazil
NOV Flexibles Equipamentos E Servicos Ltda. |  | Brazil
NOV Flexibles Holding ApS |  | Denmark
NOV Flexibles UK Ltd. |  | United Kingdom
NOV Floating Production AS |  | Norway
NOV Fluid Control B.V. |  | Netherlands
NOV Gabon SARL |  | Gabon
NOV GEO Cayman Holdings Limited |  | Cayman Islands
NOV GEO GP LLC |  | United States
NOV GEO LP1 C.V. |  | Netherlands
NOV Germany Holding GmbH |  | Germany
NOV Ghana Limited |  | Ghana
NOV GP Holding LLC |  | United States
NOV GP Holding, L.P. |  | United States
NOV GP Sub LLC |  | United States
NOV GP1 Holding LLC |  | United States

5

Name |  | State or Country of Incorporation
NOV Grant Prideco L.L.C. |  | United Arab Emirates
NOV Group Holdings Limited |  | United Kingdom
NOV Holding Danmark ApS |  | Denmark
NOV Holding Germany GmbH & Co KG |  | Germany
NOV Holding Germany Management GmbH |  | Germany
NOV Holdings B.V. |  | Netherlands
NOV Hydra Rig Pte. Ltd |  | Singapore
NOV I LLC |  | United States
NOV India Private Limited |  | India
NOV Intelliserv UK Limited |  | United Kingdom
NOV International Holding B.V. |  | Netherlands
NOV International Holdings C.V. |  | Netherlands
NOV International Holdings GP LLC |  | United States
NOV Kenya Limited |  | Kenya
NOV Kostroma LLC |  | Russian Federation
NOV Mexico Holding LLC |  | United States
NOV Mission Products UK Limited |  | United Kingdom
NOV Mozambique Limitada |  | Mozambique
NOV Netherlands Finance Holding C.V. |  | Netherlands
NOV Netherlands Finance Holding LLC |  | United States
NOV North America I/P, LLC |  | United States
NOV Norway 1 Holding LLC |  | United States
NOV Norway 2 Holding LLC |  | United States
NOV Norway 3 Holding LLC |  | United States
NOV Norway GP 1 ANS |  | Norway
NOV Norway GP 2 ANS |  | Norway
NOV Norway GP 3 ANS |  | Norway
NOV Norway International Holding LLC |  | United States
NOV Oil and Gas Services Namibia (Proprietary) Limited |  | Namibia
NOV Oil and Gas Services Nigeria Limited |  | Nigeria
NOV Oil and Gas Services South Africa (Pty) Limited |  | South Africa
NOV Oilfield Services Tanzania Limited |  | Tanzania, United Republic of
NOV Oilfield Services Vostok LLC |  | Russian Federation
NOV Oilfield Solutions Ltd. |  | Nigeria
NOV Oslo Holding LLC |  | United States
NOV Park I B.V. |  | Netherlands
NOV Park II B.V. |  | Netherlands
NOV Pressure Performance Systems Comercialização de Equipamentos e Prestação de Serviços Técnicos Ltda. |  | Brazil
NOV Process & Flow Technologies AS |  | Norway
NOV Process & Flow Technologies Pte. Ltd. |  | Singapore
NOV Process & Flow Technologies UK Limited |  | United Kingdom
NOV Process & Flow Technologies US, Inc. |  | United States
NOV Rig Solutions Pte. Ltd. |  | Singapore
NOV Rigstore, Inc. |  | United States
NOV Romania, LLC |  | United States
NOV Saudi Arabia Co., Ltd. |  | Saudi Arabia
NOV Saudi Arabia Trading Co. |  | Saudi Arabia
NOV Services Ltd. |  | Cayman Islands
NOV Servicios de Personal Mexico, S. de R.L. de C.V. |  | Mexico
NOV Tuboscope Italia S.R.L. |  | Italy
NOV Tuboscope Middle East LLC |  | United Arab Emirates

6

Name |  | State or Country of Incorporation
NOV Tuboscope NL B.V. |  | Netherlands
NOV Tubulars and Connectors Ltd. |  | Nigeria
NOV TV2 LLC |  | United States
NOV TVI LLC |  | United States
NOV UK (Angola Acquisitions) Limited |  | United Kingdom
NOV UK Finance Limited |  | United Kingdom
NOV UK Holdings Limited |  | United Kingdom
NOV UK Korea LP |  | United Kingdom
NOV Wellbore Technologies Norway LLC |  | United States
NOV West B.V. |  | Netherlands
NOV Worldwide C.V. |  | Netherlands
NOV-BLM SAS |  | France
NOV-Fabtech FZCO |  | United Arab Emirates
NOVM Holding LLC |  | United States
NOVN Portugal - Servicos de Engenharia, LDA |  | Portugal
NOW Downhole Tools, Inc. |  | United States
NOW International LLC |  | United States
NOW Nova Scotia Holdings LLC |  | United States
NOW Oilfield Services II, LLC |  | United States
NOW Oilfield Services, LLC |  | United States
NQL (Illinois) Inc. |  | United States
NQL (US) Inc. |  | United States
NQL Energy Services US, Inc. |  | United States
NQL Holland B.V. |  | Netherlands
Opus Plus Limited |  | United Kingdom
Pesaka Inspection Services SDN.BHD. |  | Malaysia
Pipex Composite Pipes Limited |  | United Kingdom
Pipex Drainage & Civil Products Limited |  | United Kingdom
Pipex Limited |  | United Kingdom
Pipex Project Services Limited |  | United Kingdom
Pipex PX (Scotland) Limited |  | United Kingdom
Pipex PX Limited |  | United Kingdom
Pipex Structural Composites Limited |  | United Kingdom
Pridecomex Holding, S. de R.L. de C.V. |  | Mexico
Pridecomex TA Industries, LLC |  | United States
Procon Engineering Ltd. |  | United Kingdom
Profab Engineering Pte. Ltd. |  | Singapore
Profab Services Pte Ltd |  | Singapore
PT Fjords Processing Indonesia |  | Indonesia
PT H-Tech Oilfield Equipment |  | Indonesia
PT National Oilwell Varco |  | Indonesia
PT PROFAB INDONESIA |  | Indonesia
Quality Tubing FSC |  | Virgin Islands, British
R&M C.V. |  | Netherlands
R&M Canada Cooperatief U.A. |  | Netherlands
R&M Canada Holding B.V. |  | Netherlands
R&M Energy Systems Australia Pty Ltd. |  | Australia
R&M Energy Systems de Argentina S.A. |  | Argentina
R&M Energy Systems de Venezuela, C.A. |  | Venezuela, Bolivarian Republic of
R&M Environmental Strategies, Inc. |  | United States
R&M Singapore Holding LLC |  | United States

7

Name |  | State or Country of Incorporation
R&M UK Holding LLC |  | United States
ReedHycalog Angola, LLC |  | United States
ReedHycalog Cameroon, LLC |  | United States
ReedHycalog CIS, LLC |  | United States
ReedHycalog Coring Services International, Inc. |  | United States
ReedHycalog International Holding, LLC |  | United States
Reed-Hycalog Singapore |  | Singapore
ReedHycalog UK Limited |  | United Kingdom
ReedHycalog, L.P. |  | United States
ReedHycalog, LLC |  | United States
RHI Holding LLC |  | United States
RIO CO, S. de R.L. de C.V. |  | Mexico
Robannic Overseas Finance A.V.V. |  | Netherland Antilles
Robbins & Myers (Suzhou) Process Equipment Company Limited |  | China
Robbins & Myers B.V. |  | Netherlands
Robbins & Myers Foundation |  | United States
Robbins & Myers GP LLC |  | United States
Robbins & Myers Holdings UK Limited |  | United Kingdom
Robbins & Myers Holdings, LLC |  | United States
Robbins & Myers Italia S.R.L. |  | Italy
Robbins & Myers N.V. |  | Netherlands Antilles
Robbins & Myers, Inc. |  | United States
Rodic, S.A. de C.V. |  | Mexico
Romaco S.a.r.l. |  | France
Screen Manufacturing Company Unlimited |  | Trinidad and Tobago
Seabox AS |  | Norway
Servicios Tubulares TT, S.A. de C.V. |  | Mexico
Slip Clutch Systems Limited |  | United Kingdom
Soil Recovery A/S |  | Denmark
Star Fiberglass Harbin Co., Ltd. |  | China
STAR Sudamtex Tubulares S.A. (Joint Venture) |  | Venezuela, Bolivarian Republic of
STB H2O TUNISIE |  | Tunisia
Subseaflex Holding ApS |  | Denmark
T-3 Energy Preferred Industries Mexico, S. de R.L. de C.V. |  | Mexico
T-3 Energy Services Cayman Holdings, Ltd. |  | Cayman Islands
T-3 Energy Services Cayman, Ltd. |  | Cayman Islands
T-3 Energy Services India Private Limited |  | India
T-3 Energy Services International, Inc. |  | United States
T-3 Energy Services Mexico, S. de R.L. de C.V. |  | Mexico
T-3 Energy Services, LLC |  | United States
T-3 Investment Corporation IV |  | United States
T-3 Mexican Holdings, Inc. |  | United States
Telluride Insurance Limited |  | Bermuda
Tianjin Grant Prideco TPCO Oilfield Products Co., Ltd. |  | China
Tianjin Grant TPCO Drilling Tools Company Limited |  | China
Tolteq Group, LLC |  | United States
TracID, Inc. |  | United States
Tube-Kote, Inc. |  | United States
Tubo-FGS, L.L.C. |  | United States
Tuboscope & Co. LLC |  | Oman
Tuboscope (Holding U.S.) LLC |  | United States

8

Name |  | State or Country of Incorporation
Tuboscope Brandt de Venezuela, S.A. |  | Venezuela, Bolivarian Republic of
Tuboscope Norge AS |  | Norway
Tuboscope Pipeline Services Inc. |  | United States
Tuboscope Services, L.L.C. |  | United States
Tuboscope Vetco (Deutschland) GmbH |  | Germany
Tuboscope Vetco (France) SAS |  | France
Tuboscope Vetco (Osterreich) GmbH |  | Austria
Tuboscope Vetco Canada ULC |  | Canada
Tuboscope Vetco Capital Limited |  | United Kingdom
Tuboscope Vetco de Argentina S.A. |  | Argentina
Tuboscope Vetco Moscow CJSC |  | Russian Federation
Tucom Composites Polyester Sanayi Ticaret Ltd. |  | Turkey
TVI Holdings, L.L.C. |  | United States
Varco BJ B.V. |  | Netherlands
Varco Canada ULC |  | Canada
Varco CIS, LLC |  | Russian Federation
Varco do Brasil Ltda. |  | Brazil
Varco Holdings Canada ULC |  | Canada
Varco I/P, Inc. |  | United States
Varco Internacional do Brasil Equipamentos E Servicos Ltda. |  | Brazil
Varco International de Venezuela, C.A. |  | Venezuela, Bolivarian Republic of
Varco UK Acquisitions Limited |  | United Kingdom
Varco US Finance, Inc. |  | United States
Varco US Holdings LLC |  | United States
Varco, L.P. |  | United States
Vetco Coating GmbH |  | Germany
Vetco Enterprise GmbH |  | Switzerland
Vetco Pipeline Services, Inc. |  | United States
Vetco Saudi Arabia Ltd. |  | Saudi Arabia
Vetco Services Sendirian Berhad |  | Brunei Darussalam
Visible Assets, Inc. |  | United States
voestalpine Middle East Free Zone Establishment |  | United Arab Emirates
voestalpine Tubulars Corporation |  | United States
voestalpine Tubulars GmbH |  | Austria
voestalpine Tubulars GmbH & Co KG |  | Austria
Woolley, Inc. |  | United States
WTG Holding U.S., Inc. |  | United States
XL Systems Antilles, N.V. |  | Netherlands Antilles
XL Systems Europe B.V. |  | Netherlands
XL Systems International, Inc. |  | United States
XL Systems, L.P. |  | United States

9