| 1 | Nadcf Recovery Group, Inc. | Chapin, SC 29036 | Oil & Gas Operator | Mar 2025 |
| 2 | Nance Engineering Inc. | Houston, TX 77058 | Oil & Gas Operator | Mar 2002 |
| 3 | National Energy Group, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 4 | National Investors Group | Warren, OH 44481 | Oil & Gas Operator | Nov 1996 |
| 5 | NBL Permian LLC | Houston, TX 77070 | Oil & Gas Operator | Aug 2018 |
| 6 | Nelson, James L. | Pettus, TX 78146 | Oil & Gas Operator | Mar 2025 |
| 7 | Neuhaus, V. F. Properties, Inc. | Palmhurst, TX 78573 | Oil & Gas Operator | Dec 2022 |
| 8 | New Horizon Investments LTD. | George West, TX 78022 | Oil & Gas Operator | Mar 2025 |
| 9 | New Voyage Enterprises LLC | San Antonio, TX 78278 | Oil Operator | Mar 2025 |
| 10 | Newfield Exploration Company | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2017 |
| 11 | Newman Operating Company | Freer, TX 78357 | Oil & Gas Operator | Jun 2021 |
| 12 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Mar 2025 |
| 13 | Nordan Trust, The | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2003 |
| 14 | Nordstrand Engineering Inc | Houston, TX 77019 | Oil & Gas Operator | Mar 2025 |
| 15 | Norgas Energy | Lakehills, TX 78063 | Oil & Gas Operator | Mar 2025 |
| 16 | Nueces Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | Oct 2002 |
| 17 | Nye Exploration & Prod, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Mar 2025 |