| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Geigo Co, LLP | Oil Operator | Dec 2017 | |
| 2 | Geo Oil Co Inc | Bloomington, IN 47402 | Oil Operator | Dec 2023 |
| 3 | Gulf Oil Corp. | Denver, CO 80201-0599 | Oil & Gas Operator | Dec 2014 |
| 4 | Gulf Refining Co. | Oil Operator | Dec 2006 |