| 1 | Nadel And Gussman Rockies, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2012 |
| 2 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 3 | Nearburg Producing Company | Dallas, TX 75380 | Oil & Gas Operator | Oct 2025 |
| 4 | Neptune Operating LLC | Houston, TX 77024 | Oil & Gas Operator | Aug 2025 |
| 5 | Nerdlihc Company, Inc. | Long Beach, CA 90815 | Oil & Gas Operator | Nov 2006 |
| 6 | New Horizon Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jun 2006 |
| 7 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 8 | New Millennium Resources, Inc. | | Oil & Gas Operator | Aug 2025 |
| 9 | Newfield Production Company | The Woodlands, TX 77380-2764 | Oil & Gas Operator | Jul 2022 |
| 10 | Nexen Oil And Gas U.S.A. Inc. | Calgary, AB T2P 5C1 | Oil & Gas Operator | Feb 2010 |
| 11 | Nine Point Energy, LLC | | Oil & Gas Operator | Oct 2021 |
| 12 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Oct 2025 |
| 13 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 14 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 15 | North Plains Energy, LLC | | Oil & Gas Operator | Jan 2016 |
| 16 | North Range Resources, LLC | | Oil & Gas Operator | Nov 2023 |
| 17 | Northern Pump Company | Denver, CO 80202-3130 | Oil & Gas Operator | Feb 2006 |
| 18 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
| 19 | Northwestern Production LLC | | Oil & Gas Operator | Apr 2024 |
| 20 | Norton Frickey | Lakewood, CO 80215 | Oil & Gas Operator | Dec 2023 |
| 21 | NP Resources, LLC | | Oil & Gas Operator | Aug 2022 |
| 22 | Nucorp Energy, Inc. | | Oil & Gas Operator | Jan 1985 |