| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | N-B Company Inco | Oil & Gas Operator | Apr 1992 | |
| 2 | National Develop | Oil & Gas Operator | Jan 1990 | |
| 3 | National Oil Com | Oil & Gas Operator | Oct 1992 | |
| 4 | Niehage Oil Company, LLC | McPherson, KS 67460 | Oil Operator | Apr 2025 |
| 5 | Nixon R P Operat | Oil Operator | Aug 1995 | |
| 6 | North American D | Oil & Gas Operator | Sep 1986 |