| 1 | Gilliam'S Aghorn Energy | Odessa, TX 79768 | Oil & Gas Operator | May 1997 |
| 2 | Ginger Oil Company (A) | The Woodlands, TX 77380 | Oil & Gas Operator | Jan 2016 |
| 3 | Glacier Park Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2001 |
| 4 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 5 | Golden Specialties Oil & Gas | Midland, TX 79708 | Oil & Gas Operator | Sep 2026 |
| 6 | Golden, Marty Joe | Midland, TX 79706 | Oil & Gas Operator | Sep 2026 |
| 7 | Gouger Oil Co. | San Antonio, TX 78217 | Oil & Gas Operator | Nov 1995 |
| 8 | Graham, Bill J. Oil & Gas Corp. | Midland, TX 79710 | Oil & Gas Operator | Nov 2000 |
| 9 | Graham, H.E. | Imperial, TX 79743 | Oil & Gas Operator | Mar 2007 |
| 10 | Grand Banks Energy Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 11 | GRB Properties, Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2003 |
| 12 | Great American Resources Inc. | Bowie, TX 76230 | Oil & Gas Operator | Sep 2026 |
| 13 | Great Basin Petroleum Serv, Inc. | Odessa, TX 79765 | Oil & Gas Operator | Nov 2002 |
| 14 | Great Basin Petroleum Serv, L.P. | Odessa, TX 79765 | Oil & Gas Operator | Jul 2008 |
| 15 | Great Basin Well Service Corp. | Odessa, TX 79765 | Oil & Gas Operator | Feb 2025 |
| 16 | Great Western Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 17 | Green Century Exp & Prod, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 18 | Greenstone Energy, LLC | Houston, TX 77208 | Oil Operator | Sep 2026 |
| 19 | Greka Am Inc | Santa Maria, CA 93454 | Oil & Gas Operator | May 2013 |
| 20 | Grizzle, Joe B. | Paris, TX 75461 | Oil & Gas Operator | Sep 2026 |
| 21 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
| 22 | Grover-McKinney Oil Company | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 23 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 24 | Guadalupe Properties, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2013 |