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| 0000077159-18-000022-index.html | 2018-11-08 11:56:45 | |
| 0000077159-18-000022.txt | 2018-11-08 11:56:45 | |
 0000077159-18-000022-xbrl.zip | 213807 | 2018-11-08 11:56:45 |
| ex101gatheringagreementame.htm | 60744 | 2018-11-08 11:56:45 |
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| Financial_Report.xlsx | 83035 | 2018-11-08 11:56:45 |
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| pva-20180930.xml | 1678674 | 2018-11-08 11:56:45 |
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| report.css | 2767 | 2018-11-08 11:56:45 |
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