| 1 | G & F Oil, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Oct 2025 |
| 2 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 3 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 4 | GBG Operating Corp. | Wichita Falls, TX 76302 | Oil & Gas Operator | Sep 1998 |
| 5 | General Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 6 | Georgetown Operating Company | Oklahoma City, OK 73113 | Oil & Gas Operator | Jun 2019 |
| 7 | Geostrat Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2011 |
| 8 | Geurin Oil & Gas | Saint Jo, TX 76265 | Oil & Gas Operator | Oct 2022 |
| 9 | Gilmore, Leo Oil, Inc. | Holliday, TX 76366 | Oil & Gas Operator | Oct 2025 |
| 10 | Ginnings Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 11 | Glahn Resources, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Oct 2025 |
| 12 | Glen D. Gonzenbach, LLC | Henrietta, TX 76365 | Oil & Gas Operator | Dec 2016 |
| 13 | Global Natural Resources | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 14 | Golden Resources Corporation | Dallas, TX 75238 | Oil & Gas Operator | Dec 1998 |
| 15 | Gonzenbach Oil & Gas, LLC | Henrietta, TX 76365 | Oil & Gas Operator | May 2020 |
| 16 | Gonzenbach, Glen D | Henrietta, TX 76365 | Oil & Gas Operator | Aug 2007 |
| 17 | Grace, Jack Production Co, LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Oct 2025 |
| 18 | Grace, Jack, Prod. Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Mar 1997 |
| 19 | Grand Operating, Inc. | Addison, TX 75001 | Oil & Gas Operator | Dec 2020 |
| 20 | Grant, Elmer D., Estate Of | Wichita Falls, TX 76302 | Oil Operator | Oct 2025 |
| 21 | Grayson Petroleum Company | Whitesboro, TX 76273 | Oil & Gas Operator | Oct 2025 |
| 22 | Great American Resources Inc. | Bowie, TX 76230 | Oil & Gas Operator | Oct 2025 |
| 23 | Great West Operating Co., Inc. | Dallas, TX 75240 | Oil & Gas Operator | Aug 2003 |
| 24 | Greco Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 25 | Greco Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 26 | Grewing, Wayne R. Oil & Gas, LLC | Muenster, TX 76252 | Oil Operator | Apr 2018 |
| 27 | GRS Oil & Gas Company | Irving, TX 75017 | Oil & Gas Operator | Aug 1994 |
| 28 | Guffey, Roy, Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2011 |
| 29 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |