EX-21.1 2 d646935dex211.htm EX-21.1 EX-21.1

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

 

Name

  

State or Country of Incorporation

A.S.E.P. (UK) Limited    United Kingdom
Ackerman International Holland B.V.    Netherlands
Advanced Production & Loading Pte Ltd    Singapore
Advanced Wirecloth, LLC    Delaware
Aggregate Plant Products Co.    Texas
Algoa Oil and Pipeline Services (Pty) Ltd    South Africa
Algoa Oil Namibia (Proprietary) Limited    Namibia
Amercoat Corporation    California
American Pipe and Construction International    California
Ameron (UK) Limited    United Kingdom
Ameron Brasil Industria E Comercio de Tubos Ltda    Brazil
Ameron Composites, Inc.    Delaware
Ameron Hawaii, LLC    Hawaii
Ameron Holdings II Pte Ltd    Singapore
Ameron Holdings Pte. Ltd.    Singapore
Ameron Holdings, Inc.    California
Ameron International Corporation    Delaware
Ameron Manufacturing Holdings Pte Ltd    Singapore
Ameron Singapore Holding C.V.    Delaware
Ameron Singapore Holding ULC    Alberta
Ameron Singapore Poly Holdings Pte. Ltd.    Singapore
Ameron Trading (Shanghai) Co. Ltd.    China
Ameron Trading Holdings Pte. Ltd.    Singapore
Andergauge Redback, LLC    Texas
Andergauge USA, Inc.    Texas
APCI    California
APL (UK) Limited    United Kingdom
APL do Brasil Ltda    Brazil
APL Management Pte Ltd    Singapore
APL Norway AS    Norway
APL Technology AS    Norway
ASEP Far East Pte Ltd.    Singapore
ASEP Group Holding BV    Netherlands
ASEP Holding BV    Netherlands
ASEP Middle East FZE    United Arab Emirates
ASEP Otomotiv Sanayi Ticaret Ltd.    Turkey
ASEP Singapore Pte. Ltd.    Singapore
ASPECIAL EQUIPAMENT PRODUCTIONS MEXICO SRL    Mexico
Aswan National Oilwell Varco (a limited liability company)    Middle East
Big Red Tubulars Limited    British Virgin Islands
Black Max Argentina S.A.    Argentina
Blue Star Coating Pte. Ltd.    Singapore
Bolenco Corporation    California
Bondstrand Corporation    California
Bondstrand Gulf FZ    U.A.E.
Bowen Downhole LLC    Delaware
Bowen Downhole, Inc.    Delaware
Brandt Energy Environmental, L.P.    Texas
Brandt Interests, Inc.    Delaware


Name

  

State or Country of Incorporation

Brandt Oilfield Services (M) Sdn. Bhd.    Malaysia
BW Offshore France SAS    France
C.M.A. Canavera S.r.l.    Italy
Capital Valves Limited    United Kingdom
Centron International Inc.    Delaware
CJSC Novmash    Belarus
Fidmash    Belarus
Coil Services ME LLC    United Arab Emirates
Conemsco Limited    United Kingdom
Contubos S.A.    Colombia
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
Dalian Moyno Pump Co., Ltd.    China
DANCO AS    Norway
Diamond Products International Venezolana, C.A.    Venezuela
DNOW Australia Pty. Ltd.    Australia
DNOW L.P.    Texas
DNOW Singapore Pte. Ltd.    Singapore
DNOW UK Ltd.    Scotland
Dreco Canada CV    Netherlands
Dreco Canada GP LLC    Delaware
Dreco Canada L.P.    Alberta
Dreco Cayman L.P.    Cayman Islands
Dreco DHT Holding BV    Netherlands
Dreco DHT, Inc.    Delaware
Dreco Eastern Europe ULC    Alberta
Dreco Energy Holding BV    Netherlands
Dreco Energy NL Cooperatief U.A.    Netherlands
Dreco Energy Services ULC    Alberta
Dreco Europe Limited    United Kingdom
Dreco Holding ULC    Alberta
Dreco International Holdings ULC    Alberta
Dreco Limited    United Kingdom
Dreco LLC    Delaware
Dura Products, Inc.    Alberta
Edlon, Inc.    Delaware
Elmar Far East Pty Ltd    Australia
Elmar Services Pty Ltd    Australia
Enerflow Industries, Inc.    Delaware
Energy Equipment Corporation Limited    United Kingdom
Enerpro de Mexico, S.A. de C.V.    Mexico
Environmental Procedures LLC    Delaware
Euro Offshore Pte. Ltd.    Singapore
Fiber Glass System (Suzhou) Co. Ltd.    China
Fiber Glass Systems Holdings, LLC    Delaware
FIBER GLASS SYSTEMS OMAN L.L.C.    Oman
Fiber Glass Systems, L.P.    Texas
Fiberspar Australia Pty. Ltd.    Australia
Fiberspar Corporation    Delaware
FIBERSPAR LINEPIPE CANADA LTD.    Canada


Name

  

State or Country of Incorporation

Forth Valley Engineering Limited    United Kingdom
GMM Mavag AG    Switzerland
GMM Pfaudler Limited    India
GP USA Holding, LLC    Delaware
GPEX, L.P.    Texas
Grant Prideco (Jiangsu) Drilling Products Co., Ltd    China
Grant Prideco (Singapore) Pte Ltd    Singapore
Grant Prideco AB TCA Holding LLC    Delaware
Grant Prideco Asia (Singapore) Pte Ltd    Singapore
Grant Prideco de Venezuela, S.A.    Venezuela
Grant Prideco European Holding, LLC    Delaware
Grant Prideco Finance, LLC    Delaware
Grant Prideco Holding, LLC    Delaware
Grant Prideco III C. V.    Netherlands
Grant Prideco Jersey Limited    Jersey Island and Delaware
Grant Prideco Mauritius Limited    Mauritius
Grant Prideco Netherlands B.V.    Netherlands
Grant Prideco PC Composites Holdings, LLC    Delaware
Grant Prideco USA, LLC    Delaware
Grant Prideco, Inc.    Delaware
Grant Prideco, L.P.    Delaware
Grant Prideco, S de R.L. de C.V.    Mexico
GROUP KZ LLP    Kazakhstan
Hebei Huayouyiji Tuboscope Coating Co., Ltd.    China
HITEC AS    Norway
Hydralift Amclyde, Inc.    Delaware
Hydralift AS    Norway
Hydralift France SAS    France
Hydra-Rig, Inc.    Delaware
Inmobiliaria Industrial de Veracruz, S. de R.L. de C.V.    Mexico
Inspecciones y Pruebas No Destructivs, S.A. de C.V.    Mexico
Intellipipe, Inc.    Delaware
IntelliServ do Brasil Equipamentos e Serviços Para Petroleo Ltda    Brazil
Intelliserv GP Holdings LLC    Delaware
Intelliserv International Holding, Ltd    Cayman Islands
Intelliserv Mexico, S. de R.L. de C.V.    Mexico
IntelliServ Norway AS    Norway
Intelliserv, Inc.    Delaware
Intelliserv, LLC    Delaware
Interpremium Group Services Pte Ltd.    Singapore
Interval LLC    Russia
Island Ready-Mix Concrete, Inc.    Hawaii
Istok Business Services LLC    Russian Federation
Jiangyin Tuboscope Tubular Development Co., Ltd    China
LLTT, Ltd.    Trinidad and Tobago
LSI Asia Pacific Pte. Ltd.    Singapore
Mavag AG    Switzerland
Merpro Americas, Inc.    Texas
Merpro Limited    Scotland
Mono Group Pension Trustees Limited    United Kingdom
Mono Pumps (Australia) Proprietary Limited    Australia


Name

  

State or Country of Incorporation

Mono Pumps 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.    Delaware
Mustang Capital Corp.    Wyoming
National Oilwell Algerie    Algeria
National Oilwell de Mexico S.A. de C.V.    Mexico
National Oilwell de Venezuela, C.A.    Venezuela
National Oilwell DHT, LP    Delaware
National Oilwell Middle East    Nova Scotia
National Oilwell Nova Scotia Company    Alberta
National Oilwell Poland S.p.z.o.o.    Poland
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 Bahrain WLL    Bahrain
National Oilwell Varco de Argentina S.A.    Argentina
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 Eurasia    Russian Federation
National Oilwell Varco Eurasia    Russian Federation
National Oilwell Varco Fluid Control Norway AS    Norway
National Oilwell Varco Hjelset AS    Norway
National Oilwell Varco Holdings LLC    Delaware
National Oilwell Varco Korea Co., Ltd.    Korea, Republic of
National Oilwell Varco MSW S.A.    Argentina
National Oilwell Varco Muscat L.L.C.    Oman
National Oilwell Varco Norway AS    Norway
National Oilwell Varco Norway Manufacturing AS    Norway
National Oilwell Varco Peru SRL    Peru
National Oilwell Varco Petroleum Equipment (Shanghai) Co., Ltd.    China
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.    Delaware
National Oilwell Varco, L.P.    Delaware
National Oilwell-Netherlands B.V.    Netherlands
National-Oilwell Pte. Ltd.    Singapore
National-Oilwell Pty. Ltd.    Australia
Natoil LLC    Delaware
New Holland Cooperatief U.A.    Netherlands
NOCL Holding BV    Netherlands
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 APL Limited    Cyprus
NOV ASEP Elmar (Middle East) Limited    United Kingdom


Name

  

State or Country of Incorporation

NOV ASEP Elmar do Brasil Equipamentos E Servicos Para Petroleu Ltda.    Brazil
NOV ASEP ELMAR MEXICO, S. DE R.L. DE C.V.    Mexico
NOV ASEP Elmar NL B.V.    Netherlands
NOV ASEP Elmar Pte Ltd    Singapore
NOV Brandt Europe France    France
NOV Brandt Oilfield Services Middle East LLC    United Arab Emirates
NOV Denmark Cooperatief U.A.    Netherlands
NOV DH de Mexico S.A. de C.V.    Mexico
NOV DHT Canada Holding ULC    Alberta
NOV Distribution Eurasia LLC    Russian Federation
NOV Downhole Thailand, LLC    Delaware
NOV DOWNHOLE ALGERIA SERVICES EURL    Algeria
NOV Downhole Argentina, LLC    Delaware
NOV Downhole Azerbaijan, LLC    Delaware
NOV Downhole Bolivia S.R.L.    Bolivia
NOV Downhole Colombia, LLC    Delaware
NOV Downhole Comercialização de Equipamento para Petroleo Ltda    Brazil
NOV Downhole Congo, LLC    Delaware
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    Delaware
NOV Downhole Norway, LLC    Delaware
NOV Downhole Pty Ltd    Australia
NOV Downhole Romania, LLC    Delaware
NOV EAST BV    Netherlands
NOV Enerflow ULC    Canada
NOV EU Acquisition SNC    France
NOV European Holding LLC    Delaware
NOV Expatriate Services, Inc.    Delaware
NOV Far East B.V.    Netherlands
NOV FGS Maylasia 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 Fluid Control B.V.    Netherlands
NOV GEO Cayman Holdings Limited    Cayman Islands
NOV GEO GP LLC    Delaware
NOV GEO LP1 CV    Netherlands
NOV Ghana Limited    Ghana
NOV GP HOLDING LLC    Delaware
NOV GP SUB LLC    Delaware
NOV Grant Prideco Middle East, LLC    United Arab Emirates
NOV Group Holdings Limited    Scotland
NOV HOLDING DANMARK ApS    Denmark
NOV Holding Germany GmbH & Co KG    Germany
NOV Holding Germany Management GmbH    Germany


Name

  

State or Country of Incorporation

NOV Holdings BV    Netherlands
NOV India Private Limited    India
NOV Intelliserv UK Limited    United Kingdom
NOV International Holding BV    Netherlands
NOV Kenya Limited    Kenya
NOV Korea Holding Co., Ltd.    Korea, Republic of
NOV Kostroma LLC    Russia
NOV Mexico Holding LLC    Delaware
NOV Mission do Brasil Comercialização de Equipamentos para Petroleo Ltda.    Brazil
NOV Mission Products UK Limited    United Kingdom
NOV Oil and Gas Services Nigeria Limited    Nigeria
NOV Oil and Gas Services South Africa    South Africa
NOV Oilfield Services Tanzania Limited    Tanzania
NOV Oilfield Services Vostok LLC    Russian Federation
NOV Park I BV    Netherlands
NOV Park II BV    Netherlands
NOV Rig Solutions Pte. Ltd.    Singapore
NOV Rigstore, Inc.    Delaware
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
NOV TVI LLC    Delaware
NOV UK AICB LTD    Scotland
NOV UK Finance Limited    United Kingdom
NOV UK HOLDINGS LIMITED    United Kingdom
NOV UK Korea LP    United Kingdom
NOV West BV    Netherlands
NOV Wilson Canada ULC    Alberta
NOV Worldwide CV    Netherlands
NOV-BLM SAS    France
NOV-Fabtech FZCO    United Arab Emirates
NOVN Portugal - Servicos de Engenharia, LDA    Portugal
NOW (Asia), Inc.    Mauritius
NOW Brazil Holding LLC    Delaware
NOW Canada Holding B.V.    Netherlands
NOW Canada, L.P.    Alberta
NOW Cooperatief I U.A.    Netherlands
NOW Cooperatief II U.A.    Netherlands
NOW Distribution India Private Limited    India
NOW Downhole Tools, Inc.    Delaware
NOW Holding LLC    Delaware
NOW I LLC    Delaware
NOW II LLC    Delaware
NOW Inc.    Delaware
NOW Indonesia Holding LLC    Delaware
NOW International LLC    Delaware
NOW Mexico Holding I B.V.    Netherlands
NOW Mexico Holding II B.V.    Netherlands
NOW Netherlands B.V.    Netherlands
NOW Norway AS    Norway


Name

  

State or Country of Incorporation

NOW Nova Scotia Holdings LLC    Delaware
NOW Oilfield Services, Inc.    Delaware
NOW Russia Holding B.V.    Netherlands
NOW Singapore Holding LLC    Delaware
NQL (Illinois) Inc.    Illinois
NQL (US) Inc.    Delaware
NQL Energy Services US, Inc.    Texas
NQL Holland B.V.    Netherlands
P&T Servicios Petroleros, C.A.    Venezuela
PESA Holding Pte Ltd.    Singapore
Pesaka Inspection Services SDN.BHD.    Malaysia
Pfaudler Equipamentos Industriais Ltda.    Brazil
Pfaudler France S.A.R.L.    France
Pfaudler Werke GMBH    Germany
Pfaudler, Inc.    Delaware
Pridecomex Holding, S. de R.L. de C.V.    Mexico
Pridecomex TA Industries, LLC    Delaware
Procon Engineering Ltd.    United Kingdom
PSX Corporation    California
PT H-Tech Oilfield Equipment    Indonesia
PT National Oilwell Varco    Indonesia
PT. R&M Energy Systems Indonesia    Indonesia
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
R&M Singapore Holding LLC    Delaware
R&M UK Holding LLC    Delaware
ReedHycalog Angola, LLC    Delaware
ReedHycalog Cameroon, LLC    Delaware
ReedHycalog CIS, LLC    Delaware
ReedHycalog Coring Services International, Inc.    Delaware
Reed-Hycalog de Mexico, S de R.L. de C.V.    Mexico
ReedHycalog India Private Limited    India
ReedHycalog International Holding, LLC    Delaware
Reed-Hycalog Services de Mexico S. de R.L. de C.V.    Mexico
Reed-Hycalog Singapore Partnership    Singapore
Reed-Hycalog UK Holdings, LLP    United Kingdom
ReedHycalog, L.P.    Delaware
ReedHycalog, LLC    Delaware
RIO CO, S. de R.L. de C.V.    Mexico
Robannic Overseas Finance A.V.V.    Aruba
Robbins & Myers (Suzhou) Process Equipment Company Limited    China
Robbins & Myers B.V.    Netherlands
Robbins & Myers Canada Holding ULC    Canada
Robbins & Myers Canada, Ltd.    Canada
Robbins & Myers de Mexico, S.A. de C.V.    Mexico
Robbins & Myers Energy Systems, L.P.    Texas
Robbins & Myers Foundation    Ohio


Name

  

State or Country of Incorporation

Robbins & Myers Holdings UK Limited    United Kingdom
Robbins & Myers Holdings, LLC    Delaware
Robbins & Myers Italia S.R.L.    Italy
Robbins & Myers N.V.    Netherlands Antilles
Robbins & Myers Private Limited    Singapore
Robbins & Myers U.K. Limited    England
Robbins & Myers, Inc.    Ohio
Rodic S.A. de C.V.    Mexico
SARL Wilson Hassi Messaoud    Algeria
Screen Manufacturing Company Unlimited    Trinidad and Tobago
Servicios Tubulares TT, S.A. de C.V.    Mexico
Shaffer India Private Limited    India
Smart Screen Systems, Inc.    Minnesota
Soil Recovery A/S    Denmark
Star Fiberglass Harbin Co., Ltd.    China
STAR Sudamtex Tubulares S.A. (Joint Venture)    Venezuela
STB H2O TUNISIE    Tunisia
Subseaflex Holding ApS    Denmark
Supply Development (Malta) Ltd    Malta
Supply Development Ltd.    British Virgin Islands
Suzhou-Pfaudler Glass-Lined Equipment Company Limited    China
T-3 Energy Preferred Industries Mexico, S. de R.L. de C.V.    Mexico
T-3 Energy Services Canada, Inc.    Canada
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.    Delaware
T-3 Energy Services Mexico, S. de R.L. de C.V.    Mexico
T-3 Energy Services, LLC    Delaware
T-3 Investment Corporation IV    Delaware
T-3 Mexican Holdings, Inc.    Delaware
Telluride Insurance Limited    Bermuda
Tianjin Grant Prideco TPCO Oilfield Products Co., Ltd.    China
Tianjin Grant TPCO Drilling Tools Company Limited    China
Tube-Kote, Inc.    Texas
Tubo-FGS, L.L.C.    Delaware
Tubos Y Activos, S. De R.L. De C.V.    Mexico
Tuboscope & Co. LLC    Oman
Tuboscope (Holding U.S.) LLC    Delaware
Tuboscope Brandt de Venezuela S.A.    Venezuela
Tuboscope Holdings Limited    United Kingdom
Tuboscope Norge AS    Norway
Tuboscope Pipeline Services Inc.    Texas
Tuboscope Services, L.L.C.    Delaware
Tuboscope Servicios de Bolivia S.R.L.    Bolivia
Tuboscope Vetco (Deutschland) GmbH    Germany
Tuboscope Vetco (France) SAS    France
Tuboscope Vetco (Osterreich) GmbH    Austria
Tuboscope Vetco Canada ULC    Alberta
Tuboscope Vetco Capital Limited    United Kingdom
Tuboscope Vetco de Argentina S.A.    Argentina


Name

  

State or Country of Incorporation

Tuboscope Vetco Mexico, S.A. de C.V.    Mexico
Tuboscope Vetco Moscow CJSC    Russian Federation
Tuboscope Vetco Nigeria Limited    Nigeria
Tucom Composites Polyester Sanayi Ticaret Ltd.    Turkey
TVI Holdings, L.L.C.    Delaware
Tycon Technoglass S.R.L.    Italy
Uge Do Brasil Comercial Ltda.    Brazil
Universal Glasteel Equipment    Ohio
Universal Glasteel Equipment Romania S.R.L.    Romania
V.O.F. National Oilwell Varco    Netherlands
Varco Al Mansoori Services Company LLC    United Arab Emirates
Varco BJ BV    Netherlands
Varco BJ FSC Inc    Barbados
Varco Canada ULC    Alberta
Varco CIS    Russian Federation
Varco do Brasil Ltda.    Brazil
Varco Drilling Equipment do Brasil Ltda.    Brazil
Varco Holdings Canada ULC    Alberta
Varco I/P, Inc.    Delaware
Varco International de Venezuela, C.A.    Venezuela
Varco International do Brasil Equipamentos e Servicos Ltda.    Brazil
Varco Sara (India) Private Limited    India
Varco UK Acquisitions Limited    United Kingdom
Varco US Finance, Inc.    Delaware
Varco US Holdings LLC    Delaware
Varco, L.P.    Delaware
Vetco Coating GmbH    Germany
Vetco Enterprise GmbH    Switzerland
Vetco Pipeline Services, Inc.    Texas
Vetco Saudi Arabia Ltd.    Saudi Arabia
Vetco Services Sendirian Berhad    Brunei Darussalam
Vetco Technology GmbH    Germany
Voest Alpine Middle East Free Zone Establishment    Austria
Voest Alpine Tubulars Gmbh    Austria
Voest Alpine Tubulars GmbH & Co KG    Austria
VON Holland Cooperaief U.A.    Netherlands
Wilson Distribution Holdings BV    Netherlands
Wilson Distribution LLC    Delaware
Wilson International, Inc.    Delaware
Wilson Libya Holdings, LLC    Delaware
Wilson Management, LLC    Delaware
Wilson MENA, FZE    United Arab Emirates
Wilson Supply Chain Services Limited    British Virgin Islands
Wilson Supply Chain Services Pty Ltd.    Australia
WILSONCOS, L.L.C.    Delaware
Woolley, Inc.    Texas
Wyoming Pipe & Tool Corp.    Wyoming
XL Systems Antilles, N.V.    Netherlands
XL Systems Europe B.V.    Netherlands
XL Systems International, Inc.    Delaware
XL Systems, L.P.    Texas
XST Holdings, Inc.    Texas