| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Inca Oil Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2009 |
| 2 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jun 2025 |
| 3 | Indrex Inc | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2000 |
| 4 | Internorth Inc | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2014 |
| 5 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Apr 2025 |
| 6 | Iochem Corporation | Oklahoma City, OK 73118-7483 | Oil & Gas Operator | Mar 2025 |