Attached files
file | filename |
---|---|
EX-31 - EX-31.2 - PATTERSON UTI ENERGY INC | pten-ex312_201412319.htm |
EX-31 - EX-31.1 - PATTERSON UTI ENERGY INC | pten-ex311_201412318.htm |
EX-23 - EX-23.1 - PATTERSON UTI ENERGY INC | pten-ex231_201412317.htm |
EX-32 - EX-32.1 - PATTERSON UTI ENERGY INC | pten-ex321_2014123110.htm |
EXCEL - IDEA: XBRL DOCUMENT - PATTERSON UTI ENERGY INC | Financial_Report.xls |
10-K - FORM 10-K - PATTERSON UTI ENERGY INC | pten-10k_20141231.htm |
Exhibit 21.1
Subsidiaries of the Registrant
Name |
|
State of Incorporation or organization |
Ambar Lone Star Fluid Services LLC |
|
Texas |
Patterson Petroleum LLC |
|
Texas |
Patterson UTI Energy Arabia DMCC |
|
UAE |
Patterson-UTI Drilling Canada Limited |
|
Nova Scotia |
Patterson-UTI Drilling Company LLC |
|
Texas |
Patterson-UTI Drilling International, Inc. |
|
Delaware |
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 Management Services, LLC |
|
Delaware |
PTEN International Holdings (Netherlands) 1 C.V. |
|
The Netherlands |
PTEN International Leasing (Netherlands) 2 C.V. |
|
The Netherlands |
Universal Pressure Pumping, Inc. |
|
Delaware |
Universal Well Services, Inc. |
|
Delaware |