Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000320575-16-000152-index-headers.html | 2016-11-01 09:31:30 | |
| 0000320575-16-000152-index.html | 2016-11-01 09:31:30 | |
| 0000320575-16-000152.txt | 2016-11-01 09:31:30 | |
 0000320575-16-000152-xbrl.zip | 260745 | 2016-11-01 09:31:30 |
 a2016rigcountsandprices.jpg | 47085 | 2016-11-01 09:31:30 |
| exhibit3113q2016.htm | 11996 | 2016-11-01 09:31:30 |
| exhibit3123q2016.htm | 11853 | 2016-11-01 09:31:30 |
| exhibit3213q2016.htm | 6006 | 2016-11-01 09:31:30 |
| exhibit3223q2016.htm | 6041 | 2016-11-01 09:31:30 |
| FilingSummary.xml | 32143 | 2016-11-01 09:31:30 |
| Financial_Report.xlsx | 76929 | 2016-11-01 09:31:30 |
| form10q-q32016.htm | 1740371 | 2016-11-01 09:31:30 |
| pes-20160930.xml | 2687862 | 2016-11-01 09:31:30 |
| pes-20160930.xsd | 69294 | 2016-11-01 09:31:30 |
| pes-20160930_cal.xml | 101247 | 2016-11-01 09:31:30 |
| pes-20160930_def.xml | 363567 | 2016-11-01 09:31:30 |
| pes-20160930_lab.xml | 760936 | 2016-11-01 09:31:30 |
| pes-20160930_pre.xml | 498141 | 2016-11-01 09:31:30 |
| R1.htm | 20362 | 2016-11-01 09:31:30 |
| R10.htm | 19706 | 2016-11-01 09:31:30 |
| R11.htm | 50617 | 2016-11-01 09:31:30 |
| R12.htm | 74042 | 2016-11-01 09:31:30 |
| R13.htm | 123591 | 2016-11-01 09:31:30 |
| R14.htm | 9156 | 2016-11-01 09:31:30 |
| R15.htm | 659746 | 2016-11-01 09:31:30 |
| R16.htm | 50098 | 2016-11-01 09:31:30 |
| R17.htm | 22324 | 2016-11-01 09:31:30 |
| R18.htm | 23754 | 2016-11-01 09:31:30 |
| R19.htm | 18075 | 2016-11-01 09:31:30 |
| R2.htm | 94876 | 2016-11-01 09:31:30 |
| R20.htm | 16203 | 2016-11-01 09:31:30 |
| R21.htm | 49618 | 2016-11-01 09:31:30 |
| R22.htm | 59034 | 2016-11-01 09:31:30 |
| R23.htm | 123614 | 2016-11-01 09:31:30 |
| R24.htm | 661181 | 2016-11-01 09:31:30 |
| R25.htm | 35167 | 2016-11-01 09:31:30 |
| R26.htm | 22795 | 2016-11-01 09:31:30 |
| R27.htm | 16084 | 2016-11-01 09:31:30 |
| R28.htm | 22448 | 2016-11-01 09:31:30 |
| R29.htm | 68136 | 2016-11-01 09:31:30 |
| R3.htm | 19121 | 2016-11-01 09:31:30 |
| R30.htm | 7649 | 2016-11-01 09:31:30 |
| R31.htm | 15792 | 2016-11-01 09:31:30 |
| R32.htm | 158251 | 2016-11-01 09:31:30 |
| R33.htm | 9663 | 2016-11-01 09:31:30 |
| R34.htm | 27376 | 2016-11-01 09:31:30 |
| R35.htm | 59369 | 2016-11-01 09:31:30 |
| R36.htm | 16911 | 2016-11-01 09:31:30 |
| R37.htm | 15799 | 2016-11-01 09:31:30 |
| R38.htm | 17979 | 2016-11-01 09:31:30 |
| R39.htm | 15872 | 2016-11-01 09:31:30 |
| R4.htm | 59599 | 2016-11-01 09:31:30 |
| R40.htm | 33993 | 2016-11-01 09:31:30 |
| R41.htm | 17166 | 2016-11-01 09:31:30 |
| R42.htm | 18055 | 2016-11-01 09:31:30 |
| R43.htm | 6238 | 2016-11-01 09:31:30 |
| R44.htm | 106904 | 2016-11-01 09:31:30 |
| R45.htm | 88753 | 2016-11-01 09:31:30 |
| R46.htm | 65177 | 2016-11-01 09:31:30 |
| R5.htm | 87678 | 2016-11-01 09:31:30 |
| R6.htm | 51239 | 2016-11-01 09:31:30 |
| R7.htm | 40968 | 2016-11-01 09:31:30 |
| R8.htm | 9509 | 2016-11-01 09:31:30 |
| R9.htm | 78513 | 2016-11-01 09:31:30 |
| report.css | 2767 | 2016-11-01 09:31:30 |
 rigcountsandspotprices.jpg | 50351 | 2016-11-01 09:31:30 |
| Show.js | 1410 | 2016-11-01 09:31:30 |