Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-18-007550-index-headers.html | 2018-04-03 17:14:03 | |
| 0001564590-18-007550-index.html | 2018-04-03 17:14:03 | |
| 0001564590-18-007550.txt | 2018-04-03 17:14:03 | |
| pten-8k_20180403.htm | 30000 | 2018-04-03 17:14:03 |
| pten-ex991_14.htm | 9879 | 2018-04-03 17:14:03 |