| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | O'Benco, Inc. | Shreveport, LA 71136 | Oil & Gas Operator | Mar 2025 |
| 2 | O'Brien Resources LLC | Shreveport, LA 71136 | Oil Operator | Nov 2017 |
| 3 | O'Ryan Oil And Gas | Odessa, TX 79768 | Oil & Gas Operator | Mar 2025 |
| 4 | Ocean Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 5 | One Tec Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2007 |
| 6 | Optimum Exploration LLC | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |