| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Imperial Oil & G | Gas Operator | Jan 1990 | |
| 2 | Imperial Oil And Gas, Inc. | Wichita, KS 67202 | Gas Operator | Jun 2002 |
| 3 | Imperial Oil Com | Oil & Gas Operator | Dec 1992 | |
| 4 | Indian Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Feb 2026 |
| 5 | Interior Oil Corporation | Derby, KS 67037 | Oil & Gas Operator | Jan 2023 |
| 6 | Iuka-Carmi Development LLC | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |