| 1 | G & M Gas & Oil | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 2 | Gala Resources, LTD. | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 3 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | May 2026 |
| 4 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 5 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Sep 2026 |
| 6 | Giebel Petroleum LTD. | Midland, TX 79705 | Oil & Gas Operator | Jul 2019 |
| 7 | Gilliam'S Aghorn Energy | Odessa, TX 79768 | Oil & Gas Operator | May 1997 |
| 8 | Gilmore Oil & Gas | Houston, TX 77002 | Oil & Gas Operator | Sep 2026 |
| 9 | Golden Specialties Oil & Gas | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 10 | Golden, Marty Joe | Midland, TX 79706 | Oil & Gas Operator | Sep 2026 |
| 11 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 12 | Great Basin Well Service Corp. | Odessa, TX 79765 | Oil & Gas Operator | Feb 2025 |
| 13 | Great Western Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 14 | Griffin Petroleum Company | Midland, TX 79705 | Oil & Gas Operator | Sep 2026 |
| 15 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 16 | Guidon Energy MGMT Services LLC | Irving, TX 75062 | Oil & Gas Operator | Dec 2020 |
| 17 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 18 | Gunvor USA LLC | Houston, TX 77002 | Oil Operator | Apr 2007 |