| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | May 2024 |
| 2 | United Energy Partners, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 3 | Upham Oil & Gas Company | Mineral Wells, TX 76068 | Oil & Gas Operator | May 2024 |
| 4 | Upham, Chester R., Jr. | Mineral Wells, TX 76067 | Oil & Gas Operator | Aug 2001 |
| 5 | Us. Fuels, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |