| 1 | Gco Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 2 | GGP Exploration, LTD. | Fort Worth, TX 76101 | Oil & Gas Operator | Oct 2025 |
| 3 | Giebel Petroleum LTD. | Midland, TX 79705 | Oil & Gas Operator | Jul 2019 |
| 4 | Gilstrap, Joel | Water Valley, TX 76958 | Oil & Gas Operator | Oct 2025 |
| 5 | Go Oil Corp. | Jacksboro, TX 76458 | Oil & Gas Operator | Oct 2025 |
| 6 | Golden Oil And Ranch, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 7 | Golden Specialties Oil & Gas | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 8 | Grace 7 Properties, LTD. | Argyle, TX 76226 | Oil & Gas Operator | Oct 2025 |
| 9 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 10 | Grandfield Consulting, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2011 |
| 11 | Great Northern Energy, Inc | Irving, TX 75039 | Oil & Gas Operator | Oct 2025 |
| 12 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 13 | Green, Roy W. Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2021 |
| 14 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 15 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
| 16 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 17 | Guffey, Roy, Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2011 |
| 18 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |