Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-16-016852-index-headers.html | 2016-04-28 06:20:49 | |
| 0001564590-16-016852-index.html | 2016-04-28 06:20:49 | |
| 0001564590-16-016852.txt | 2016-04-28 06:20:49 | |
| pten-8k_20160428.htm | 31163 | 2016-04-28 06:20:49 |
| pten-ex991_6.htm | 597067 | 2016-04-28 06:20:49 |