| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | G3 Operating, LLC | Oil & Gas Operator | May 2013 | |
| 2 | Geolinear Co. | Oil & Gas Operator | Jul 1996 | |
| 3 | Grayson Mill Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Aug 2025 |
| 4 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |