| 1 | G & G Production, LLC | | Gas Operator | Aug 2008 |
| 2 | G & S Oil Company | | Oil & Gas Operator | Dec 2024 |
| 3 | George Tarver Operating Co., LLC | | Oil & Gas Operator | Dec 2024 |
| 4 | Geoterre Operating, L.L.C. | | Oil & Gas Operator | Aug 2025 |
| 5 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 6 | Gibraltar Energy Company | | Oil & Gas Operator | Jul 2025 |
| 7 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 8 | Goldsberry, Et Al | | Oil & Gas Operator | Apr 1988 |
| 9 | Grady B. Langston | | Oil & Gas Operator | Jun 1982 |
| 10 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 11 | Griffin & Griffin Expl, LLC | | Oil & Gas Operator | Aug 2025 |
| 12 | Griffin & Griffin Oil Co Inc | | Oil & Gas Operator | Jun 2001 |
| 13 | Griffin & Griffin Oil Co., Inc Et Al | | Oil & Gas Operator | Jan 2010 |
| 14 | Griffith, Wesley | | Oil & Gas Operator | Jun 2000 |
| 15 | GRM LLC | | Oil & Gas Operator | Jun 2021 |
| 16 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 17 | Guaranty Energy Corp. | | Oil & Gas Operator | Aug 1990 |
| 18 | Guernsey Petroleum Corp Of MS | | Oil Operator | Jul 1988 |
| 19 | Guido Production Co Inc | | Oil Operator | May 1995 |
| 20 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
| 21 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |