Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-19-002207-index-headers.html | 2019-02-07 06:04:04 | |
| 0001564590-19-002207-index.html | 2019-02-07 06:04:04 | |
| 0001564590-19-002207.txt | 2019-02-07 06:04:04 | |
| pten-8k_20190207.htm | 28567 | 2019-02-07 06:04:04 |
| pten-ex991_6.htm | 1715642 | 2019-02-07 06:04:04 |