| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Oak Valley Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2015 |
| 2 | Ocean Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 3 | Okie Operating Company, LTD. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 4 | Omega Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 5 | Outline Oil Company LLC | Beeville, TX 78104 | Oil Operator | Oct 2025 |
| 6 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |