Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-19-021922-index-headers.html | 2019-06-06 16:28:52 | |
| 0001564590-19-021922-index.html | 2019-06-06 16:28:52 | |
| 0001564590-19-021922.txt | 2019-06-06 16:28:52 | |
| pten-8k_20190606.htm | 85641 | 2019-06-06 16:28:52 |
| pten-ex101_14.htm | 136868 | 2019-06-06 16:28:52 |