| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | O'Brien Energy Company | Shreveport, LA 71136 | Oil & Gas Operator | Sep 2019 |
| 2 | O.G.P. Operating, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Oct 2025 |
| 3 | Oxley Energy LLC | Houston, TX 77042 | Gas Operator | Jun 2025 |
| 4 | Oxley Petroleum Co | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Sep 2017 |