| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Imperial Oil Com | Oil & Gas Operator | Dec 1992 | |
| 2 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 3 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2025 |
| 4 | Indian Wells Oil | Oil & Gas Operator | Jul 1995 | |
| 5 | Investors Drilli | Gas Operator | Jan 1993 | |
| 6 | Irex Corporation | Englewood, CO 80111 | Oil & Gas Operator | May 2000 |