EX-21.1 4 drq-ex21_1.htm EX-21.1

Exhibit 21.1

SUBSIDIARIES OF DRIL-QUIP, INC.

Name of Entity | Jurisdiction of Formation
Dril-Quip, Inc. | Delaware
Dril-Quip Holdings Pty. Ltd | Australia
Dril-Quip do Brasil Ltda. | Brazil
TIW Canada U.L.C. | Canada
Dril-Quip Oilfield Services (Tianjin) Co., Ltd. | China
Dril-Quip AP Holdings LLC | Delaware
Dril-Quip UK Holdings LLC | Delaware
Dril-Quip Holdings LLC | Delaware
Dril-Quip International LLC | Delaware
Dril-Quip Dutch Holdings LLC | Delaware
Dril-Quip Foreign Interest LLC | Delaware
Dril-Quip Investments LLC | Delaware
Dril-Quip Venezuela LLC | Delaware
TIW International, LLC | Delaware
TIWEC, S.A. | Ecuador
Dril-Quip Egypt for Petroleum Services S.A.E. | Egypt
Dril-Quip Asia Pac LP | England
Dril-Quip UK LP | England
DRQ Holdings LP | England
DRQ England LP | England
Dril-Quip (Ghana) Ltd. | Ghana
Dril-Quip Cross Ghana Limited | Ghana
PT. DQ Oilfield Services Indonesia | Indonesia
Servicios Dril-Quip de México, S. de R.L. de C.V. | Mexico
Dril-Quip TIW Mexico S. de R.L. de C.V | Mexico
Dril-Quip B.V. | Netherlands
Dril-Quip (Nigeria) Ltd | Nigeria
Dril-Quip Qatar LLC | Qatar
Dril-Quip TIW Saudi Arabia LLC | Saudi Arabia
Dril-Quip (Europe) Limited | Scotland
Dril-Quip UK Holdco Ltd. | Scotland
Dril-Quip Asia Pacific Pte Ltd | Singapore
TIW Corporation | Texas
Honing Inc. | Texas
TIW Hunshare, LLC | Texas
The Technologies Alliance Inc. | Texas
Dril-Quip Venezuela S.C.A. | Venezuela