| 1 | Galloway Lone Star, L.L.C. | Tomball, TX 77377 | Oil & Gas Operator | Jun 2025 |
| 2 | Genecov Group, Inc. The | Tyler, TX 75713 | Oil & Gas Operator | Dec 2002 |
| 3 | Genepa Petroleum Company | Spring, TX 77379 | Oil & Gas Operator | Jun 2025 |
| 4 | General Atlantic Resources Inc | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 5 | Geo Logic Environmental SRVCS LC | Kilgore, TX 75663 | Oil Operator | Dec 2011 |
| 6 | Geo-Vest Of Texas, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2008 |
| 7 | Geonatural Resources, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jun 2025 |
| 8 | GGP Exploration, LTD. | Fort Worth, TX 76101 | Oil & Gas Operator | Jun 2025 |
| 9 | Gilbert, A. A. | Shreveport, LA 71133 | Oil & Gas Operator | Mar 1997 |
| 10 | Gilbert,A.A.TX Acct/Partnership | Shreveport, LA 71133 | Oil Operator | Jun 2025 |
| 11 | Glade Operating Co. | Longview, TX 75604 | Oil & Gas Operator | Jun 2025 |
| 12 | Glade Production | Gladewater, TX 75647 | Oil & Gas Operator | Nov 2008 |
| 13 | Glassell, Alfred C., Jr. | Houston, TX 77002 | Oil & Gas Operator | Apr 2007 |
| 14 | Glenn Supply Company, Inc. | Tulsa, OK 74101 | Oil & Gas Operator | Feb 2025 |
| 15 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 16 | GMT Energy Corporation | Houston, TX 77042 | Oil & Gas Operator | Feb 2005 |
| 17 | GMT Exploration Co Texas, LLC | Houston, TX 77070 | Oil & Gas Operator | Jun 2014 |
| 18 | GMT Inc. | Houston, TX 77042 | Oil & Gas Operator | Jan 2003 |
| 19 | Goforth Production Company | Rockdale, TX 76567 | Oil Operator | Feb 2014 |
| 20 | Goldsmith Operating, LLC | Tyler, TX 75711 | Oil & Gas Operator | Jun 2025 |
| 21 | Goldsmith, J. Paul | Tyler, TX 75711 | Oil & Gas Operator | Feb 1997 |
| 22 | Goodrich Petroleum Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2022 |
| 23 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 24 | Granite Oil Company | Austin, TX 78716 | Oil & Gas Operator | Nov 2000 |
| 25 | Graward Operating, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Jun 2025 |
| 26 | Graystone Energy Corporation | Judson, TX 75660 | Oil & Gas Operator | Jun 2025 |
| 27 | Green River Resources Inc. | Keystone, CO 80435 | Oil & Gas Operator | Jun 2025 |
| 28 | Gregg Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 29 | Greystone Oil & Gas, LLP | Houston, TX 77057 | Oil & Gas Operator | Dec 2015 |
| 30 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 31 | Guest Petroleum Incorporated | Edmond, OK 73013 | Oil & Gas Operator | Mar 2025 |
| 32 | Gulf States Petro. Corp. | Dallas, TX 75202 | Oil & Gas Operator | Apr 2006 |
| 33 | Gulfport Oil & Gas Inc. | Gulfport, MS 39501 | Oil & Gas Operator | Jun 2025 |