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0001564590-17-001224-index-headers.html | 2017-02-09 06:02:54 | |
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0001564590-17-001224.txt | 2017-02-09 06:02:54 | |
pten-8k_20170209.htm | 31363 | 2017-02-09 06:02:54 |
pten-ex991_6.htm | 973195 | 2017-02-09 06:02:54 |