Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-14-288564-index-headers.html | 2014-07-31 10:31:23 | |
| 0001193125-14-288564-index.html | 2014-07-31 10:31:23 | |
| 0001193125-14-288564.txt | 2014-07-31 10:31:23 | |
 0001193125-14-288564-xbrl.zip | 80500 | 2014-07-31 10:31:23 |
| d755021d10q.htm | 361385 | 2014-07-31 10:31:23 |
| d755021dex1022598.htm | 116705 | 2014-07-31 10:31:23 |
| d755021dex311.htm | 9274 | 2014-07-31 10:31:23 |
| d755021dex312.htm | 9265 | 2014-07-31 10:31:23 |
| d755021dex321.htm | 3363 | 2014-07-31 10:31:23 |
| d755021dex322.htm | 3350 | 2014-07-31 10:31:23 |
| FilingSummary.xml | 24629 | 2014-07-31 10:31:23 |
| Financial_Report.xls | 391078 | 2014-07-31 10:31:23 |
| Financial_Report.xlsx | 99895 | 2014-07-31 10:31:23 |
| pnrg-20140630.xml | 491039 | 2014-07-31 10:31:23 |
| pnrg-20140630.xsd | 33224 | 2014-07-31 10:31:23 |
| pnrg-20140630_cal.xml | 71391 | 2014-07-31 10:31:23 |
| pnrg-20140630_def.xml | 83966 | 2014-07-31 10:31:23 |
| pnrg-20140630_lab.xml | 280538 | 2014-07-31 10:31:23 |
| pnrg-20140630_pre.xml | 202651 | 2014-07-31 10:31:23 |
| R1.htm | 28844 | 2014-07-31 10:31:23 |
| R10.htm | 11476 | 2014-07-31 10:31:23 |
| R11.htm | 10433 | 2014-07-31 10:31:23 |
| R12.htm | 8165 | 2014-07-31 10:31:23 |
| R13.htm | 21578 | 2014-07-31 10:31:23 |
| R14.htm | 14731 | 2014-07-31 10:31:23 |
| R15.htm | 10227 | 2014-07-31 10:31:23 |
| R16.htm | 14011 | 2014-07-31 10:31:23 |
| R17.htm | 10075 | 2014-07-31 10:31:23 |
| R18.htm | 7753 | 2014-07-31 10:31:23 |
| R19.htm | 9055 | 2014-07-31 10:31:23 |
| R2.htm | 123535 | 2014-07-31 10:31:23 |
| R20.htm | 72397 | 2014-07-31 10:31:23 |
| R21.htm | 26104 | 2014-07-31 10:31:23 |
| R22.htm | 6402 | 2014-07-31 10:31:23 |
| R23.htm | 22012 | 2014-07-31 10:31:23 |
| R24.htm | 14027 | 2014-07-31 10:31:23 |
| R25.htm | 18040 | 2014-07-31 10:31:23 |
| R26.htm | 75972 | 2014-07-31 10:31:23 |
| R27.htm | 25890 | 2014-07-31 10:31:23 |
| R28.htm | 9618 | 2014-07-31 10:31:23 |
| R29.htm | 5206 | 2014-07-31 10:31:23 |
| R3.htm | 14299 | 2014-07-31 10:31:23 |
| R30.htm | 59445 | 2014-07-31 10:31:23 |
| R31.htm | 23276 | 2014-07-31 10:31:23 |
| R32.htm | 66010 | 2014-07-31 10:31:23 |
| R33.htm | 7481 | 2014-07-31 10:31:23 |
| R34.htm | 17770 | 2014-07-31 10:31:23 |
| R35.htm | 17127 | 2014-07-31 10:31:23 |
| R36.htm | 16562 | 2014-07-31 10:31:23 |
| R37.htm | 5238 | 2014-07-31 10:31:23 |
| R38.htm | 23703 | 2014-07-31 10:31:23 |
| R39.htm | 17344 | 2014-07-31 10:31:23 |
| R4.htm | 84028 | 2014-07-31 10:31:23 |
| R40.htm | 26980 | 2014-07-31 10:31:23 |
| R41.htm | 11933 | 2014-07-31 10:31:23 |
| R42.htm | 11148 | 2014-07-31 10:31:23 |
| R43.htm | 27424 | 2014-07-31 10:31:23 |
| R5.htm | 25894 | 2014-07-31 10:31:23 |
| R6.htm | 6582 | 2014-07-31 10:31:23 |
| R7.htm | 26773 | 2014-07-31 10:31:23 |
| R8.htm | 4903 | 2014-07-31 10:31:23 |
| R9.htm | 85979 | 2014-07-31 10:31:23 |
| report.css | 2740 | 2014-07-31 10:31:23 |
| Show.js | 1410 | 2014-07-31 10:31:23 |