| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | I. H. Delatte | Oil & Gas Operator | Jul 1991 | |
| 2 | Iberia Operating Corporation | Oil & Gas Operator | Jan 2003 | |
| 3 | Imc Exploration Co. | Oil & Gas Operator | Oct 1986 | |
| 4 | Imperial-American Energy,Inc. | Oil & Gas Operator | Jul 1978 | |
| 5 | Indian Exploration, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Oct 2025 |
| 6 | Inexco Oil Company | Houston, TX 77210 | Oil & Gas Operator | Mar 2013 |
| 7 | Iowa Production Company, Inc. | Oil & Gas Operator | Jan 1992 | |
| 8 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |