| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | G&G Productions | Oil Operator | Jul 2024 | |
| 2 | G. R. Goodwill | Oil & Gas Operator | Jun 1997 | |
| 3 | Gaines Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
| 4 | Gas Resources, Limited | Oil & Gas Operator | Jun 2024 | |
| 5 | Gas Rock Corporation | Oil Operator | Mar 1983 | |
| 6 | Gep Haynesville II, LLC | Gas Operator | May 2024 | |
| 7 | Gep Haynesville, LLC | Gas Operator | Dec 2021 | |
| 8 | Gerald C. Eddy | Oil & Gas Operator | Oct 1987 | |
| 9 | Global Operating Co. Inc. | Oil Operator | Dec 2008 | |
| 10 | Granja Corporation | Oil & Gas Operator | Dec 2003 | |
| 11 | Gravtro, Inc. | Oil Operator | Apr 1986 | |
| 12 | Great Southern Oil &Gas Co Inc | Oil & Gas Operator | Dec 2004 | |
| 13 | Griffin Southern Corp. | Oil & Gas Operator | Jun 1983 | |
| 14 | Grogan Field Production, L.L.C. | Oil Operator | Jul 2024 | |
| 15 | Grynberg Petroleum Company | Greenwood Vge, CO 80111-3326 | Oil & Gas Operator | Oct 2019 |
| 16 | Guardian Oil Company | Oil & Gas Operator | Aug 1985 | |
| 17 | Guernsey Petroleum Corporation | Atlanta, GA 30318 | Oil & Gas Operator | Nov 1997 |