| 1 | G & K Operating, LLC | Poth, TX 78147 | Oil & Gas Operator | Feb 2026 |
| 2 | G & M Gas & Oil | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 3 | Galilee Oil Investments LLC | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2026 |
| 4 | Gapp Oil & Gas, LLC | Ganado, TX 77962 | Oil & Gas Operator | Feb 2026 |
| 5 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 6 | Gassco Petroleum Corporation | Seguin, TX 78155 | Oil & Gas Operator | Feb 2026 |
| 7 | GBF Operating LLC | Morrison, CO 80465 | Oil & Gas Operator | Feb 2026 |
| 8 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | Nov 2025 |
| 9 | Geo-Graphic Production, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Feb 2026 |
| 10 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 11 | Geosouthern Energy Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2026 |
| 12 | Gibraltar Petroleum Corporation | Mabank, TX 75147 | Oil & Gas Operator | Nov 2008 |
| 13 | Gibraltar Resources, Inc. | Dallas, TX 75374 | Oil & Gas Operator | Jul 1993 |
| 14 | Ginger Petroleum Company, Inc. | La Grange, TX 78945 | Oil & Gas Operator | Feb 2026 |
| 15 | Glade Operating, LLC | San Antonio, TX 78280 | Oil Operator | Feb 2026 |
| 16 | Glassell, Alfred C., Jr. | Houston, TX 77002 | Oil & Gas Operator | Apr 2007 |
| 17 | Glenco Oil & Gas Company | Seguin, TX 78155 | Oil & Gas Operator | Dec 1994 |
| 18 | GN&J LLC | Pharr, TX 78577 | Oil & Gas Operator | Feb 2026 |
| 19 | Golden Child, Inc. | San Antonio, TX 78213 | Oil & Gas Operator | Feb 2026 |
| 20 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 21 | Goldmark Energy Corporation | Spring, TX 77393 | Oil & Gas Operator | Jul 2010 |
| 22 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Feb 2026 |
| 23 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 24 | Gsi Oil & Gas, Inc. | Bryan, TX 77806 | Oil & Gas Operator | Feb 2026 |
| 25 | Gulftex Energy III, LP | San Antonio, TX 78257 | Oil & Gas Operator | Jul 2018 |
| 26 | Gulftex Energy, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Feb 2026 |