Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950123-10-014515-index-headers.html | 2010-02-19 15:09:48 | |
| 0000950123-10-014515-index.html | 2010-02-19 15:09:48 | |
| 0000950123-10-014515.txt | 2010-02-19 15:09:48 | |
 d70467d7046701.gif | 7499 | 2010-02-19 15:09:48 |
| d70467e10vk.htm | 1191165 | 2010-02-19 15:09:48 |
| d70467exv10w9.htm | 43574 | 2010-02-19 15:09:48 |
| d70467exv21w1.htm | 2932 | 2010-02-19 15:09:48 |
| d70467exv23w1.htm | 1287 | 2010-02-19 15:09:48 |
| d70467exv31w1.htm | 8961 | 2010-02-19 15:09:48 |
| d70467exv31w2.htm | 9028 | 2010-02-19 15:09:48 |
| d70467exv32w1.htm | 5915 | 2010-02-19 15:09:48 |
| defnref.xml | 31081 | 2010-02-19 15:09:48 |
| FilingSummary.xml | 15096 | 2010-02-19 15:09:48 |
| Financial_Report.xls | 131584 | 2010-02-19 15:09:48 |
| pten-20091231.xml | 680450 | 2010-02-19 15:09:48 |
| pten-20091231.xsd | 16446 | 2010-02-19 15:09:48 |
| pten-20091231_cal.xml | 51055 | 2010-02-19 15:09:48 |
| pten-20091231_def.xml | 17837 | 2010-02-19 15:09:48 |
| pten-20091231_lab.xml | 192826 | 2010-02-19 15:09:48 |
| pten-20091231_pre.xml | 113925 | 2010-02-19 15:09:48 |
| R1.xml | 35114 | 2010-02-19 15:09:48 |
| R10.xml | 7415 | 2010-02-19 15:09:48 |
| R11.xml | 31683 | 2010-02-19 15:09:48 |
| R12.xml | 38496 | 2010-02-19 15:09:48 |
| R13.xml | 15764 | 2010-02-19 15:09:48 |
| R14.xml | 16168 | 2010-02-19 15:09:48 |
| R15.xml | 11679 | 2010-02-19 15:09:48 |
| R16.xml | 16403 | 2010-02-19 15:09:48 |
| R17.xml | 32257 | 2010-02-19 15:09:48 |
| R18.xml | 84632 | 2010-02-19 15:09:48 |
| R19.xml | 7388 | 2010-02-19 15:09:48 |
| R2.xml | 63648 | 2010-02-19 15:09:48 |
| R20.xml | 136179 | 2010-02-19 15:09:48 |
| R21.xml | 7385 | 2010-02-19 15:09:48 |
| R22.xml | 71468 | 2010-02-19 15:09:48 |
| R23.xml | 18893 | 2010-02-19 15:09:48 |
| R24.xml | 9455 | 2010-02-19 15:09:48 |
| R25.xml | 52090 | 2010-02-19 15:09:48 |
| R26.xml | 27348 | 2010-02-19 15:09:48 |
| R3.xml | 24374 | 2010-02-19 15:09:48 |
| R4.xml | 104267 | 2010-02-19 15:09:48 |
| R5.xml | 195184 | 2010-02-19 15:09:48 |
| R6.xml | 15665 | 2010-02-19 15:09:48 |
| R7.xml | 112402 | 2010-02-19 15:09:48 |
| R8.xml | 83242 | 2010-02-19 15:09:48 |
| R9.xml | 26702 | 2010-02-19 15:09:48 |