| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | U. S. Energy Development Corporation | Fort Worth, TX 76164 | Oil & Gas Operator | Jul 2025 |
| 2 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Jul 2025 |
| 3 | United Energy Partners, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 4 | Upstream Properties, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jul 2025 |
| 5 | Us. Fuels, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |