| 1 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 2 | Gaither Petroleum Corporation | Katy, TX 77493 | Oil & Gas Operator | Oct 2025 |
| 3 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 4 | Garrison Operating, L.L.C. | Tomball, TX 77375 | Oil & Gas Operator | Oct 2025 |
| 5 | Gary Oil & Gas | Deer Park, TX 77536 | Oil & Gas Operator | Oct 2025 |
| 6 | Gastar Exploration Texas, LP | Houston, TX 77010 | Oil & Gas Operator | Oct 2018 |
| 7 | Gec Operating, Inc. | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 8 | Genecov Group, Inc. The | Tyler, TX 75713 | Oil & Gas Operator | Dec 2002 |
| 9 | Genepa Petroleum Company | Spring, TX 77379 | Oil & Gas Operator | Oct 2025 |
| 10 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 11 | Giant NRG Co., LP | Dallas, TX 75230 | Oil & Gas Operator | Oct 2025 |
| 12 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 13 | Goldsmith Operating, LLC | Tyler, TX 75711 | Oil & Gas Operator | Oct 2025 |
| 14 | Goldsmith, J. Paul | Tyler, TX 75711 | Oil & Gas Operator | Feb 1997 |
| 15 | Goldsmith, Neta R. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2009 |
| 16 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 17 | Grand Energy, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Oct 2002 |
| 18 | Graward Operating, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Oct 2025 |
| 19 | Graystone Energy Corporation | Judson, TX 75660 | Oil & Gas Operator | Oct 2025 |
| 20 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 21 | Gsi Oil & Gas, Inc. | Bryan, TX 77806 | Oil & Gas Operator | Oct 2025 |