| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Occidental Energy Company, Inc. | Houston, TX 77282 | Oil & Gas Operator | Jul 2021 |
| 2 | Okie Crude Company | Tulsa, OK 74103 | Oil & Gas Operator | May 2026 |
| 3 | Ops Group Limited | Houston, TX 77060 | Oil & Gas Operator | Jun 2014 |
| 4 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
| 5 | Overton Park Oil & Gas LP | Fort Worth, TX 76113 | Oil & Gas Operator | Sep 2026 |