| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Imperial Oil Company | Houston, TX 77073 | Oil & Gas Operator | Oct 2004 |
| 2 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 3 | Iron Ridge Operating, LLC | Austin, TX 78738 | Oil & Gas Operator | Dec 2025 |
| 4 | Italian-American Oil Co., Inc. | Tomball, TX 77377 | Oil & Gas Operator | Dec 2025 |