| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 2 | Neptune Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2024 |
| 3 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
| 4 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 5 | Nine Point Energy, LLC | Oil & Gas Operator | Oct 2021 | |
| 6 | North Plains Energy, LLC | Oil & Gas Operator | Jan 2016 | |
| 7 | Northern Pump Company | Denver, CO 80202-3130 | Oil & Gas Operator | Feb 2006 |
| 8 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
| 9 | Nucorp Energy, Inc. | Oil & Gas Operator | Jan 1985 |