Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-052653-index-headers.html | 2020-02-27 16:08:13 | |
| 0001193125-20-052653-index.html | 2020-02-27 16:08:13 | |
| 0001193125-20-052653.txt | 2020-02-27 16:08:13 | |
 0001193125-20-052653-xbrl.zip | 33226 | 2020-02-27 16:08:13 |
| d865765d8k.htm | 30891 | 2020-02-27 16:08:13 |
| d865765d8k_htm.xml | 3291 | 2020-02-27 16:08:13 |
| d865765dex991.htm | 375557 | 2020-02-27 16:08:13 |
| FilingSummary.xml | 1734 | 2020-02-27 16:08:13 |
| Financial_Report.xlsx | 5801 | 2020-02-27 16:08:13 |
 g865765g0227075911561.jpg | 2945 | 2020-02-27 16:08:13 |
| gpor-20200227.xsd | 3075 | 2020-02-27 16:08:13 |
| gpor-20200227_lab.xml | 17373 | 2020-02-27 16:08:13 |
| gpor-20200227_pre.xml | 10956 | 2020-02-27 16:08:13 |
| MetaLinks.json | 18292 | 2020-02-27 16:08:13 |
| R1.htm | 38635 | 2020-02-27 16:08:13 |
| report.css | 2766 | 2020-02-27 16:08:13 |
| Show.js | 1085 | 2020-02-27 16:08:13 |