| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | U. D. Man, Inc. | San Antonio, TX 78212 | Oil & Gas Operator | May 2024 |
| 2 | United Gas Pipe Line Co. | Oil Operator | Aug 1993 | |
| 3 | Universal Petroleum Corporation | Houston, TX 77002 | Oil & Gas Operator | Sep 2002 |
| 4 | Universal Resources Corp. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jan 2000 |
| 5 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | May 2024 |