| 1 | Gaither Petroleum Corporation | Katy, TX 77493 | Oil & Gas Operator | Feb 2026 |
| 2 | Galt Petroleum, Inc. | Iowa Park, TX 76367 | Oil Operator | Feb 2026 |
| 3 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 4 | Garrison LTD. | San Antonio, TX 78257 | Oil & Gas Operator | Feb 2026 |
| 5 | Gary Oil & Gas | Deer Park, TX 77536 | Oil & Gas Operator | Feb 2026 |
| 6 | Gasper Rice & Associates, Inc. | Houston, TX 77084 | Oil & Gas Operator | Aug 2003 |
| 7 | Gasper Rice Resources, LTD. | Houston, TX 77068 | Oil & Gas Operator | Feb 2026 |
| 8 | Gec Operating, Inc. | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 9 | Geiselman, Grover J. | Richmond, TX 77469 | Oil & Gas Operator | Feb 1995 |
| 10 | Gemini Exploration Company | Dallas, TX 75219 | Oil & Gas Operator | Mar 1997 |
| 11 | Glickenhaus Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Feb 2026 |
| 12 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 13 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Feb 2026 |
| 14 | Gordy Oil Company | Houston, TX 77007 | Oil & Gas Operator | Feb 2026 |
| 15 | Grand Operating, Inc. | Addison, TX 75001 | Oil & Gas Operator | Nov 2025 |
| 16 | Great Northern Energy, Inc | Irving, TX 75039 | Oil & Gas Operator | Feb 2026 |
| 17 | Great Western Onshore Inc | Houston, TX 77002 | Oil & Gas Operator | Mar 2008 |
| 18 | Greco Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 19 | Greco Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 20 | Greenhill Petroleum Corporation | Houston, TX 77077 | Oil & Gas Operator | Jan 1998 |
| 21 | Greylock Conventional, LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2025 |
| 22 | Greylock Opco LLC | Charleston, WV 25311 | Oil & Gas Operator | Dec 2025 |
| 23 | Gsi Oil & Gas, Inc. | Bryan, TX 77806 | Oil & Gas Operator | Feb 2026 |
| 24 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |
| 25 | GWM Operating Company, LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Feb 2026 |