| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Farmers Union Central Exchange, Inc. | Oil & Gas Operator | May 1983 | |
| 2 | Fidelity Exploration & Production Company | Denver, CO 80203 | Oil & Gas Operator | Sep 2025 |
| 3 | Five States Operating Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Aug 2025 |
| 4 | Fortson Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2020 |