| 1 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 2 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 3 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 4 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 5 | Glacier Petroleum Co Okla Inc | Edmond, OK 73013-1977 | Oil & Gas Operator | Feb 2024 |
| 6 | Gladiator Operating LLC | | Oil & Gas Operator | Feb 2024 |
| 7 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2024 |
| 8 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Jan 2024 |
| 9 | Golden Gas Service Company | Tulsa, OK 74114-1757 | Oil & Gas Operator | Feb 2024 |
| 10 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Apr 2024 |
| 11 | Great Plains Pipeline Company | Tulsa, OK 74135-6405 | Oil & Gas Operator | Jul 2014 |
| 12 | Great Western Drilling Co | Midland, TX 79701 | Oil & Gas Operator | Apr 2024 |
| 13 | Green River Operating Co Inc | Noble, OK 73068-5521 | Oil & Gas Operator | Feb 2018 |
| 14 | Green River Resources Inc. | Keystone, CO 80435 | Oil & Gas Operator | Apr 2024 |
| 15 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 16 | Greenlee Oil And Gas LLC | Oklahoma City, OK 73189-1613 | Oil & Gas Operator | Dec 2023 |
| 17 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 18 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |