| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | I C Gas Amcana Inc | Tulsa, OK 74103-3713 | Oil & Gas Operator | Apr 1996 |
| 2 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jun 2025 |
| 3 | Indrex Inc | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2000 |
| 4 | Inter-States Oil & Gas Inc | Edmond, OK 73003-0023 | Oil & Gas Operator | Apr 2020 |
| 5 | Iron Sights Operating, Inc. | Stillwater, OK 74076 | Oil & Gas Operator | Jul 2022 |