Attached files
| file | filename |
|---|---|
| EX-23.1 - EX-23.1 - PATTERSON UTI ENERGY INC | pten-ex231_7.htm |
| EX-31.1 - EX-31.1 - PATTERSON UTI ENERGY INC | pten-ex311_9.htm |
| EX-31.2 - EX-31.2 - PATTERSON UTI ENERGY INC | pten-ex312_8.htm |
| 10-K - 10-K - PATTERSON UTI ENERGY INC | pten-10k_20191231.htm |
| EX-32.1 - EX-32.1 - PATTERSON UTI ENERGY INC | pten-ex321_11.htm |
| EX-4.1 - EX-4.1 - PATTERSON UTI ENERGY INC | pten-ex41_98.htm |
Exhibit 21.1
Subsidiaries of the Registrant
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Name |
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State of Incorporation or organization |
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1.Ambar Lone Star Fluid Services LLC |
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Texas |
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2.Current Power Solutions, Inc. |
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Texas |
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3.Drilling Technologies 1 LLC |
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Delaware |
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4.Drilling Technologies 2 LLC |
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Delaware |
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5.Great Plains Oilfield Rental, L.L.C. |
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Oklahoma |
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6.Keystone Rock & Excavation, L.L.C. |
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Oklahoma |
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7.MS Directional, LLC |
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Texas |
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8.Patterson Petroleum LLC |
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Texas |
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9.Patterson UTI International Saudi Arabia Limited |
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Kingdom of Saudi Arabia |
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10.Patterson-UTI Drilling Canada Limited |
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Nova Scotia |
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11.Patterson-UTI Drilling Company LLC |
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Texas |
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12.Patterson-UTI Drilling International, Inc. |
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Delaware |
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13.Patterson-UTI International (Argentina) S.R.L. |
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Argentina |
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14.Patterson-UTI International (Netherlands) B.V. |
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The Netherlands |
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15.Patterson-UTI International Holdings (BVI) Limited |
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British Virgin Islands |
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16.Patterson-UTI International Holdings (Netherlands) One B.V. |
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The Netherlands |
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17.Patterson-UTI International Holdings (Netherlands) Two B.V. |
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The Netherlands |
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18.Patterson-UTI International Holdings, Inc. |
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Delaware |
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19.Patterson-UTI International (India) B.V. |
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The Netherlands |
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20.Patterson-UTI International (Kuwait) Limited |
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British Virgin Islands |
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21.Patterson-UTI Holding Company LLC |
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Delaware |
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22.Patterson-UTI Management Services, LLC |
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Delaware |
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23.PTL Prop Solutions, L.L.C. |
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Oklahoma |
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24.Seventy Seven Energy LLC |
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Delaware |
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25.Seventy Seven Land Company LLC |
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Oklahoma |
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26.Seventy Seven Operating LLC |
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Oklahoma |
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27.Superior QC, LLC |
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Delaware |
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28.Universal Pressure Pumping, Inc. |
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Delaware |
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29.Universal Wireline LLC |
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Delaware |
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30.Warrior Rig Technologies Limited |
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Alberta |
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31.Warrior Rig Technologies US LLC |
|
Delaware |
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32.Western Wisconsin Sand Company, LLC |
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Wisconsin |
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