| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Indexgeo & Associates, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2009 |
| 2 | Ineos USA Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 3 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 4 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 2025 |
| 5 | Ipact | Austin, TX 78734 | Oil & Gas Operator | Oct 2025 |
| 6 | Ironroc Energy | The Woodlands, TX 77381 | Oil & Gas Operator | Oct 2025 |