Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
State or Country of | ||
Name | Incorporation | |
Ackerman International Holland B.V. | Netherlands | |
Advanced Wirecloth, Inc. | Louisiana | |
AG Holding UK Unlimited | United Kingdom | |
Amclyde UK Limited | United Kingdom | |
Andergauge Limited | United Kingdom | |
Andergauge Redback, LLC | Texas | |
Andergauge USA, Inc. | Texas | |
Anderson Group Limited | United Kingdom | |
Black Max Argentina S.A. | Argentina | |
Bowen Downhole LLC | Delaware | |
Bowen Downhole, Inc. | Delaware | |
Brandt Energy Environmental, L.P. | Texas | |
Brandt Interests, Inc. | Delaware | |
Brandt Norge | Norway | |
Brandt Oilfield Services (M) Sdn. Bhd. | Malaysia | |
Brandt Servicios Petroleros S.A. | Peru | |
C.M.A. Canavera S.r.l. | Italy | |
Camco Drilling Group Limited | United Kingdom | |
Church Oil Tools, Inc. | Texas | |
CJSC Novmash | Belarus | |
Coil Services (North Sea) Limited | United Kingdom | |
Coil Services ME LLC | United Arab Emirates | |
Corlac Equipment Corp | Barbados | |
CTES Limited | United Kingdom | |
Diamond Products Interantional Venezolana, C.A. | Venezuela | |
Dreco DHT, Inc. | Delaware | |
Dreco Eastern Europe Ltd. | Alberta | |
Dreco Energy Services Ltd. | Alberta | |
Dreco Europe Limited | United Kingdom | |
Dreco International Finance (Barbados) Ltd. | Barbados | |
Dreco International Holdings Ltd. | Alberta | |
Dreco Limited | United Kingdom | |
Dreco LLC | Delaware | |
Elmar Far East Pty Ltd | Australia | |
Elmar Services (Middle East) Limited | United Kingdom | |
Elmar Services Pty Ltd | Australia | |
Enerpro de Mexico, S.A. de C.V. | Mexico | |
Environmental Procedures Inc. | Delaware | |
Fiber Glass System (Suzhou) Co. Ltd. | China | |
Fiber Glass Systems (Harbin) Co., Ltd. | China | |
Fiber Glass Systems Holdings, LLC | Delaware | |
Fiber Glass Systems, L.P. | Texas | |
GP USA Holding, LLC | Delaware | |
GPEX, L.P. | Texas | |
Grant Prdieco (Singapore) Pte Ltd | Singapore | |
Grant Prideco (Jiangsu) Drilling Products Co., Ltd | China | |
Grant Prideco AB TCA Holding LLC | Delaware | |
Grant Prideco Asia (Singapore) Pte Ltd | Singapore | |
Grant Prideco Canada Ltd. | Alberta | |
Grant Prideco de Venezulea, S.A. | Venezuela | |
Grant Prideco Equipmentos para Petrolea Ltda. | Brazil | |
Grant Prideco European Holding, LLC | Delaware |
State or Country of | ||
Name | Incorporation | |
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 Limited | United Kingdom | |
Grant Prideco Mauritius Limited | Mauritius | |
Grant Prideco Netherlands B.V. | Netherlands | |
Grant Prideco PC Composites Holdings, LLC | Delaware | |
Grant Prideco Tube-Alloy Holding LLC | Delaware | |
Grant Prideco USA, LLC | Delaware | |
Grant Prideco, Inc. | Delaware | |
Grant Prideco, L.P. | Delaware | |
Grant Prideco, S.A. de C.V. | Mexico | |
Griffith Downhole Products GmbH | Germany | |
Harbin Star Fiberglass Ltd. | China | |
Hebei Huayouyiji Tuboscope Coating Co., Ltd. | China | |
HITEC AS | Norway | |
Hydra-Rig, Inc. | Delaware | |
Hydralift Amclyde, Inc. | Delaware | |
Hydralift AS | Norway | |
Hydralift BLM SA | France | |
Hydralift France SAS | France | |
Hydralift Holding UK Ltd. | United Kingdom | |
Inmobiliaria Industrial de Veracruz, S.A. de C.V. | Mexico | |
Inspecciones y Pruebas No Destructivs, S.A. de C.V. | Mexico | |
Intellipipe, Inc. | Delaware | |
Intelliserv International Holding, Ltd | Cayman Islands | |
IntelliServ Norway AS | Norway | |
Intelliserv, Inc. | Delaware | |
Istok Business Services LLC | Russian Federation | |
Jiangsu Grant Prideco Oil and Gas Equipment Co., Ltd. | China | |
Jiangyin Tuboscope Tubular Development Co., Ltd | China | |
JV FIDMASH | Belarus | |
Lanzhou LS-National Oilwell Petroleum Engineering Co. Ltd. | China | |
LLTT, Ltd. | Trinidad And Tobago | |
LSI Asia Pacific Pte. Ltd. | Singapore | |
Mid-South Machine, Inc. | Louisiana | |
Mono Group | United Kingdom | |
Mono Group Pension Trustees Limited | United Kingdom | |
Mono Pumps (Australia) Proprietary Limited | Australia | |
Mono Pumps Ltd. | United Kingdom | |
Mono Pumps New Zealand Limited | New Zealand | |
Monoflo NOV S.A.I.C. | Argentina | |
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 Company | Nova Scotia | |
National Oilwell Norway AS | Norway | |
National Oilwell Nova Scotia Company | Nova Scotia | |
National Oilwell Ontario, LLC | Delaware | |
National Oilwell Poland S.p.z.o.o. | Poland | |
National Oilwell Services de Mexico, S.A. de C.V. | Mexico | |
National Oilwell Sogne AS | Norway |
State or Country of | ||
Name | Incorporation | |
National Oilwell Varco (Thailand) Ltd. | Thailand | |
National Oilwell Varco do Brasil LTDA | Brazil | |
National Oilwell Varco Hjelset AS | Norway | |
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 Canada Ltd. | Alberta | |
National-Oilwell Pte. Ltd. | Singapore | |
National-Oilwell Pty. Ltd. | Australia | |
Natoil LLC | Delaware | |
Natoil, Inc. | Delaware | |
NBJ Manufacturas Petroleras (Bolivia) S.A. | Bolivia | |
NOV (Caymans), Ltd. | Cayman Islands | |
NOV (Malaysia) Sdn. Bhd. | Malaysia | |
NOV Brandt Europe France | France | |
NOV Brandt Oilfield Services Middle East LLC | United Arab Emirates | |
NOV de Argentina S.A. | Argentina | |
NOV DH de Mexico S.A. de C.V. | Mexico | |
NOV Expatriate Services, Inc. | Delaware | |
NOV India Private Limited | India | |
NOV Rigstore, Inc. | Delaware | |
NOV Sara India Private Limited | India | |
NOV Services Ltd. | Cayman Islands | |
NOV Tuboscope Middle East LLC | United Arab Emirates | |
NOV UK Finance Limited | United Kingdom | |
NOV-Fabtech FZCO | United Arab Emirates | |
NOW (Asia), Inc. | Mauritius | |
NOW (Barbados) SRL | Barbados | |
NOW Canada, L.P. | Alberta | |
NOW Downhole Tools, Inc. | Delaware | |
NOW International Nova Scotia Company | Nova Scotia | |
NOW International, Inc. | Delaware | |
NOW Nova Scotia Holdings, Inc. | Delaware | |
NOW Oilfield Services, Inc. | Delaware | |
NQL (Illinois) Inc. | Illinois | |
NQL (US) Inc. | Delaware | |
NQL Energy Services (Barbados) Ltd. | Barbados | |
NQL Energy Services US, Inc. | Texas | |
NQL Finance, L.L.C. | Delaware | |
NQL Holland B.V. | Netherlands | |
P&T Servicios Petroleros, C.A. | Venezuela | |
Pesaka Inspection Services SDN.BHD. | Malaysia | |
Prescott Drilling Motors, Inc. | Louisiana | |
Pretempca Servicios de Mexico, S.A. de C.V. | Mexico | |
Pridecomex Holding, S.A. de C.V. | Mexico | |
Procon Engineering Ltd. | United Kingdom | |
PT H-Tech Oilfield Equipment | Indonesia | |
PT National Oilwell Varco | Indonesia | |
Reed Hycalog International Limited | United Kingdom |
State or Country of | ||
Name | Incorporation | |
Reed-Hycalog de Mexico, S de R.L. de C.V. | Mexico | |
Reed-Hycalog Investment Pte. Ltd. | Singapore | |
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 Angola, LLC | Delaware | |
ReedHycalog Argentina, LLC | Delaware | |
ReedHycalog Azerbaijan, LLC | Delaware | |
ReedHycalog Cameroon, LLC | Delaware | |
ReedHycalog CIS, LLC | Delaware | |
ReedHycalog Colombia, LLC | Delaware | |
ReedHycalog Congo, LLC | Delaware | |
ReedHycalog Coring Services International, Inc. | Delaware | |
ReedHycalog Del Ecuador S.A. | Ecuador | |
ReedHycalog Eurasia Ltd | United Kingdom | |
ReedHycalog Europe B.V. | Netherlands | |
ReedHycalog Gabon, LLC | Delaware | |
ReedHycalog International Holding, LLC | Delaware | |
ReedHycalog Italia S.R.L. | Italy | |
ReedHycalog Kazakhstan, LLC | Delaware | |
ReedHycalog Norway, LLC | Delaware | |
ReedHycalog Oilfield Services, LLC | Russian Federation | |
ReedHycalog Pty Ltd | Australia | |
ReedHycalog Romania, LLC | Delaware | |
ReedHycalog Thailand, LLC | Delaware | |
ReedHycalog UK Ltd | Ireland | |
ReedHycalog, L.P. | Delaware | |
ReedHycalog, LLC | Delaware | |
Sakhalin Outfitters LLC | Russian Federation | |
Sampwell Testing Services Ltd. | Alberta | |
Screen Manufacturing Co. Ltd. | Trinidad And Tobago | |
Servicios Tubulares TT, S.A. de C.V. | Mexico | |
Servizi Ispettivi s.r.l. | Italy | |
Shaffer India Private Limited | India | |
Smart Screen Systems, Inc. | Minnesota | |
Soil Recovery A/S | Denmark | |
STAR Sudamtex Tubulares S.A. (Joint Venture) | Venezuela | |
STS Products Inc. | Delaware | |
TA Industries, Inc. | Delaware | |
TAI Holding, Inc. | Delaware | |
Texas Oil Tools, Inc. | Nevada | |
The Brandt Company de Argentina S.A. | Argentina | |
Tianjin Grant Prideco TPCO Oilfield Products Co., Ltd. | China | |
Tianjin Grant TPCO Drilling Tools Company Limited | China | |
TS&M Supply | Alberta | |
TS&M Supply — Ontario | Ontario | |
TS&M Technical Sales & Maintenance Company | Nova Scotia | |
Tube-Alloy Capital Corporation | Texas | |
Tube-Kote, Inc. | Texas | |
Tubo-FGS, L.L.C. | Delaware | |
Tuboscope & Co. LLC | Oman | |
Tuboscope (Holding U.S.) Inc. | Delaware | |
Tuboscope Brandt de Colombia | Colombia | |
Tuboscope Brandt de Venezuela S.A. | Venezuela |
State or Country of | ||
Name | Incorporation | |
Tuboscope Holdings Limited | United Kingdom | |
Tuboscope Norge AS | Norway | |
Tuboscope Pipeline Services Inc. | Texas | |
Tuboscope Pipeline Services Limited | United Kingdom | |
Tuboscope Services, L.L.C. | Delaware | |
Tuboscope Servicios de Bolivia S.A. | Bolivia | |
Tuboscope Vetco (Deutschland) GmbH | Germany | |
Tuboscope Vetco (France) S.A. | France | |
Tuboscope Vetco (Osterreich) GmbH | Austria | |
Tuboscope Vetco Canada Inc. | Alberta | |
Tuboscope Vetco Capital Limited | United Kingdom | |
Tuboscope Vetco de Argentina S.A. | Argentina | |
Tuboscope Vetco Mexico, S.A. de C.V. | Mexico | |
Tuboscope Vetco Moscow | Russian Federation | |
Tuboscope Vetco Nigeria Limited | Nigeria | |
Tulsa Equipment Manufacturing Company | Oklahoma | |
TVI Holdings, L.L.C. | Delaware | |
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 Limited | Alberta | |
Varco CIS | Russian Federation | |
Varco do Brasil Ltda. | Brazil | |
Varco Drilling Equipment do Brasil Ltda. | Brazil | |
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 U.S. Holdings, Inc. | Delaware | |
Varco UK Acquisitions Limited | United Kingdom | |
Varco US Finance, Inc. | Delaware | |
Varco, L.P. | Delaware | |
VCR Panama Inc. | Panama | |
Vector Oil Tool Ltd. | Alberta | |
Venwell International Inc. (Trinidad Branch) | Texas | |
Vetco Coating GmbH | Germany | |
Vetco Enterprise AG | Switzerland | |
Vetco Pipeline Services Ltd. | Alberta | |
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 | |
Welch Power Source, L.L.C. | Louisiana | |
Woolley, Inc. | Texas | |
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 |