Attached files
| file | filename |
|---|---|
| 10-K - 10-K - PATTERSON UTI ENERGY INC | pten-10k_20171231.htm |
| EX-31.2 - EX-31.2 - PATTERSON UTI ENERGY INC | pten-ex312_10.htm |
| EX-23.1 - EX-23.1 - PATTERSON UTI ENERGY INC | pten-ex231_7.htm |
| EX-4.2 - EX-4.2 - PATTERSON UTI ENERGY INC | pten-ex42_397.htm |
| EX-10.19 - EX-10.19 - PATTERSON UTI ENERGY INC | pten-ex1019_305.htm |
| EX-31.1 - EX-31.1 - PATTERSON UTI ENERGY INC | pten-ex311_6.htm |
| EX-32.1 - EX-32.1 - PATTERSON UTI ENERGY INC | pten-ex321_9.htm |
Exhibit 21.1
Subsidiaries of the Registrant
|
Name |
|
State of Incorporation or organization |
|
Ambar Lone Star Fluid Services LLC |
|
Texas |
|
Drilling Technologies 1 LLC |
|
Delaware |
|
Drilling Technologies 2 LLC |
|
Delaware |
|
Great Plains Oilfield Rental, L.L.C. |
|
Oklahoma |
|
Keystone Rock & Excavation, L.L.C. |
|
Oklahoma |
|
MS Directional, LLC |
|
Texas |
|
Patterson Petroleum LLC |
|
Texas |
|
Patterson UTI Energy Arabia DMCC |
|
United Arab Emirates |
|
Patterson UTI International Saudi Arabia Limited |
|
Kingdom of Saudi Arabia |
|
Patterson-UTI Drilling Canada Limited |
|
Nova Scotia |
|
Patterson-UTI Drilling Company LLC |
|
Texas |
|
Patterson-UTI Drilling International, Inc. |
|
Delaware |
|
Patterson-UTI Global Resources Management Office Limited |
|
Dubai International Financial Centre |
|
Patterson-UTI International (Netherlands) Coöperatief U.A. |
|
The Netherlands |
|
Patterson-UTI International Holdings (BVI) Limited |
|
British Virgin Islands |
|
Patterson-UTI International Holdings (Netherlands) One B.V. |
|
The Netherlands |
|
Patterson-UTI International Holdings (Netherlands) Two B.V. |
|
The Netherlands |
|
Patterson-UTI International Holdings GP (BVI), Inc. |
|
British Virgin Islands |
|
Patterson-UTI International Holdings GP 1 LLC |
|
Delaware |
|
Patterson-UTI International Holdings, Inc. |
|
Delaware |
|
Patterson-UTI International (India) B.V. |
|
The Netherlands |
|
Patterson-UTI International (Kuwait) Limited |
|
British Virgin Islands |
|
Patterson-UTI Management Services, LLC |
|
Delaware |
|
PTEN International Holdings (Netherlands) 1 C.V. |
|
The Netherlands |
|
PTEN International Leasing (Netherlands) 2 C.V. |
|
The Netherlands |
|
PTL Prop Solutions, L.L.C. |
|
Oklahoma |
|
Seventy Seven Energy LLC |
|
Delaware |
|
Seventy Seven Land Company LLC |
|
Oklahoma |
|
Seventy Seven Operating LLC |
|
Oklahoma |
|
Universal Pressure Pumping, Inc. |
|
Delaware |
|
Warrior Rig Technologies Limited |
|
Alberta |
|
Warrior Rig Technologies US LLC |
|
Delaware |
|
Western Wisconsin Sand Company, LLC |
|
Wisconsin |