| 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 | Apr 2026 |
| 3 | Interstate Explorations LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2026 |
| 4 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Jan 2026 |
| 5 | Investors Resources Corp | Edmond, OK 73034 | Oil & Gas Operator | Feb 2026 |
| 6 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2026 |
| 7 | Itr Petroleum Inc | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |