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| 0000950123-10-098634-index.html | 2010-11-01 12:42:37 | |
| 0000950123-10-098634.txt | 2010-11-01 12:42:37 | |
 0000950123-10-098634-xbrl.zip | 53303 | 2010-11-01 12:42:37 |
| d77134e10vq.htm | 407041 | 2010-11-01 12:42:37 |
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| d77134exv2w3.htm | 15921 | 2010-11-01 12:42:37 |
| d77134exv31w1.htm | 6132 | 2010-11-01 12:42:37 |
| d77134exv31w2.htm | 6205 | 2010-11-01 12:42:37 |
| d77134exv32w1.htm | 4099 | 2010-11-01 12:42:37 |
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| pten-20100930.xsd | 13903 | 2010-11-01 12:42:37 |
| pten-20100930_cal.xml | 47979 | 2010-11-01 12:42:37 |
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| R5.xml | 209796 | 2010-11-01 12:42:37 |
| R6.xml | 22116 | 2010-11-01 12:42:37 |
| R7.xml | 129861 | 2010-11-01 12:42:37 |
| R8.xml | 53924 | 2010-11-01 12:42:37 |
| R9.xml | 20855 | 2010-11-01 12:42:37 |