| 1 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 2 | Nadel And Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 3 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2025 |
| 4 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Jun 2025 |
| 5 | National Cooperative Refinery Assoc. | Great Bend, KS 67530 | Oil & Gas Operator | Feb 2023 |
| 6 | National Oil Com | | Oil & Gas Operator | Oct 1992 |
| 7 | National Petrole | | Oil & Gas Operator | Dec 1996 |
| 8 | National Petroleum Reserves, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Apr 2012 |
| 9 | Natural Gas Expl | | Oil & Gas Operator | Jul 1990 |
| 10 | Nec Operating - Kansas, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jun 2025 |
| 11 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Oct 2025 |
| 12 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2025 |
| 13 | North American Drilling & Exploration, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Aug 2015 |
| 14 | North Plains Oil | | Oil Operator | Jul 1990 |
| 15 | Northern Lights Oil Company, LLC | Andover, KS 67002 | Oil & Gas Operator | Jun 2025 |
| 16 | Northstar Investments, Inc. | Wichita, KS 67230 | Oil & Gas Operator | Jun 2025 |
| 17 | Novy Oil & Gas, Inc. | Goddard, KS 67052 | Oil & Gas Operator | Aug 2025 |
| 18 | NPF Energy Corporation | Boise, ID 83708 | Oil & Gas Operator | Jun 2025 |