| 1 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 2 | Nall Oil & Gas | Mineral Wells, TX 76067 | Oil & Gas Operator | Aug 2025 |
| 3 | Natural Petroleum Company | Overton, TX 75684 | Oil & Gas Operator | Jun 1994 |
| 4 | Nautilus Exploration, Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Nov 2021 |
| 5 | New Era International | Graham, TX 76450 | Oil & Gas Operator | Sep 2017 |
| 6 | New Horizon Resources LLC | Houston, TX 77057 | Oil & Gas Operator | Aug 2025 |
| 7 | Newark E&P Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2017 |
| 8 | Newark Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 9 | Newberry, Charles D Inc | Campbellsvlle, KY 42719 | Oil Operator | Aug 2025 |
| 10 | NHRG Inc | Wichita Falls, TX 76308 | Oil Operator | Aug 2025 |
| 11 | Nichols,Edwin S Explorations Inc | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 12 | Nitschke, Dan E. | Henrietta, TX 76365 | Oil & Gas Operator | Aug 2025 |
| 13 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 14 | North Central Texas Energy LLC | Graham, TX 76450 | Oil & Gas Operator | Aug 2025 |
| 15 | North Lake Resources LLC | Oklahoma City, OK 73132 | Oil & Gas Operator | Aug 2025 |
| 16 | North Texas Plugging, LLC | Denton, TX 76205 | Oil & Gas Operator | Aug 2025 |
| 17 | Northridge Exploration, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2025 |
| 18 | Northridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2025 |
| 19 | Northwest Oil Company | Dallas, TX 75204 | Oil & Gas Operator | Jun 2014 |
| 20 | NT Minerals, LLC | Tulsa, OK 74172 | Oil & Gas Operator | Aug 2025 |
| 21 | Nytex Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2014 |