| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | U.S. Enercorp, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Jul 2004 |
| 2 | U.S. Enercorp, LTD. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2019 |
| 3 | U.S.A. Plugging Company | Pearsall, TX 78061 | Oil & Gas Operator | Apr 2024 |
| 4 | Ultra Oil & Gas, Inc. | Centerton, AR 72719 | Oil & Gas Operator | Apr 2024 |
| 5 | Union Gas Operating Company | Houston, TX 77014 | Oil & Gas Operator | Apr 2024 |