| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Iberia Operating Corporation | Oil & Gas Operator | Jan 2003 | |
| 2 | Imperial-American Energy,Inc. | Oil & Gas Operator | Jul 1978 | |
| 3 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Oct 2025 |
| 4 | Indigo II Louisiana Operating LLC | Oil & Gas Operator | Feb 2015 | |
| 5 | Indigo Minerals LLC | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 6 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 7 | Int'L Petr & Expl Opr Corp | Oil & Gas Operator | Jan 2012 | |
| 8 | Irwin H. Parnes | Oil Operator | Jun 1982 |