Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-19-280465-index-headers.html | 2019-10-31 16:14:10 | |
| 0001193125-19-280465-index.html | 2019-10-31 16:14:10 | |
| 0001193125-19-280465.txt | 2019-10-31 16:14:10 | |
 0001193125-19-280465-xbrl.zip | 29807 | 2019-10-31 16:14:10 |
| d821673d8k.htm | 27812 | 2019-10-31 16:14:10 |
| d821673d8k_htm.xml | 3291 | 2019-10-31 16:14:10 |
| d821673dex991.htm | 352447 | 2019-10-31 16:14:10 |
| FilingSummary.xml | 1729 | 2019-10-31 16:14:10 |
| Financial_Report.xlsx | 5798 | 2019-10-31 16:14:10 |
 g821673g1031220645641.jpg | 3215 | 2019-10-31 16:14:10 |
| gpor-20191031.xsd | 3077 | 2019-10-31 16:14:10 |
| gpor-20191031_lab.xml | 17375 | 2019-10-31 16:14:10 |
| gpor-20191031_pre.xml | 10958 | 2019-10-31 16:14:10 |
| MetaLinks.json | 18262 | 2019-10-31 16:14:10 |
| R1.htm | 38630 | 2019-10-31 16:14:10 |
| report.css | 2767 | 2019-10-31 16:14:10 |
| Show.js | 1084 | 2019-10-31 16:14:10 |