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0001564590-17-014154-index-headers.html | 2017-07-27 06:03:10 | |
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0001564590-17-014154.txt | 2017-07-27 06:03:10 | |
pten-8k_20170727.htm | 32577 | 2017-07-27 06:03:10 |
pten-ex991_6.htm | 979962 | 2017-07-27 06:03:10 |