| 1 | G & S Oil Company | | Oil & Gas Operator | Jul 2024 |
| 2 | Gas Masters Of America | | Oil & Gas Operator | Oct 1993 |
| 3 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jul 2024 |
| 4 | General American Oil Co Of TX | | Oil & Gas Operator | Jun 1983 |
| 5 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 6 | Georgetown Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 1995 |
| 7 | Gish & McBead | | Oil Operator | Jan 1989 |
| 8 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 9 | GNR Production Services Inc | | Oil Operator | Oct 2001 |
| 10 | Goldco Operating LLC | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 11 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 12 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Dec 2024 |
| 13 | Graham Energy LTD | Houston, TX 77024 | Oil & Gas Operator | Mar 1994 |
| 14 | Greer Energy, Inc. | | Oil Operator | Dec 1996 |
| 15 | Grenadier Energy Partners II,LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2020 |
| 16 | Griffin Operating | | Oil & Gas Operator | Mar 1995 |
| 17 | Grit Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2023 |
| 18 | Gulf South Minerals, Inc. | | Oil Operator | Nov 1993 |
| 19 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jul 2024 |
| 20 | Gulf South Pipeline Company, LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2020 |
| 21 | Gulf States Pipeline Corp. | | Oil & Gas Operator | May 2003 |