| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 2 | Newcastle Oil & Gas Inc | Oil Operator | Dec 1988 | |
| 3 | Noarko Resources | Oil & Gas Operator | Mar 1990 | |
| 4 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2024 |
| 5 | Nor-Am Exploration | Oil Operator | Jun 1981 | |
| 6 | North Finn LLC | Casper, WY 82605 | Oil & Gas Operator | Oct 2024 |
| 7 | Northern Michigan Expl Co | Oil & Gas Operator | Jul 1990 |