| 1 | Nanke Energy LLC | Westminster, CO 80234 | Oil & Gas Operator | Oct 2025 |
| 2 | National Fuel Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2025 |
| 3 | Natural Resource Group Inc | | Oil & Gas Operator | Jan 2024 |
| 4 | Newell Energy LTD | | Gas Operator | Nov 2021 |
| 5 | Nielson & Associates, Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 6 | Nighthawk Production LLC | | Oil & Gas Operator | May 2016 |
| 7 | Niobrara Illuminating Gas Associates LLC | | Oil & Gas Operator | Jul 2007 |
| 8 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Feb 2026 |
| 9 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Feb 2026 |
| 10 | Nonsuch Natural Gas Inc | Naples, FL 34108 | Oil & Gas Operator | Jan 2026 |
| 11 | Norstar Petroleum Inc | Englewood, CO 80112 | Oil & Gas Operator | Sep 2025 |
| 12 | North American Resources Company | Billings, MT 59101 | Oil & Gas Operator | Dec 2019 |
| 13 | North Shore Exploration & Prod LLC | Broomfield, CO 80021 | Oil & Gas Operator | Dec 2025 |
| 14 | Northstar Gas Company, Inc. | | Oil & Gas Operator | Jan 2016 |
| 15 | Nuevida Resources, LLC | Dallas, TX 75235 | Gas Operator | Nov 2025 |