| 1 | Nacogdoches Oil & Gas Inc | Nacogdoches, TX 75963 | Oil & Gas Operator | Sep 2026 |
| 2 | Nadk, LLC | Orem, UT 84097 | Oil & Gas Operator | Apr 2026 |
| 3 | National Oil Company | Garden City, KS 67846 | Oil & Gas Operator | Jun 2024 |
| 4 | Natural Gas Corp Of Ca | Vernal, UT 84078 | Oil & Gas Operator | Jun 1989 |
| 5 | Navajo Nation Oil & Gas Co | Window Rock, AZ 86511 | Oil & Gas Operator | Oct 2012 |
| 6 | Negaunee, LLC | Pewaukee, WI 53072 | Oil Operator | Jun 2026 |
| 7 | Newfield Production Company | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2021 |
| 8 | Nicor Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 9 | Nnogc Exploration & Production, LLC | Window Rock, AZ 86515 | Oil & Gas Operator | Jul 2026 |
| 10 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Sep 2026 |
| 11 | North Plains Corp | Tulsa, OK 74137 | Oil & Gas Operator | May 2026 |
| 12 | North Shore Exploration & Prod LLC | Broomfield, CO 80021 | Oil & Gas Operator | Jul 2026 |
| 13 | Northstar Gas Company Of Texas | Houston, TX 77057-2768 | Oil & Gas Operator | Jan 2026 |
| 14 | Northstar Gas, Inc. | Orem, UT 84097-6360 | Oil & Gas Operator | Jun 2026 |
| 15 | Northwest Exploration Co | Salt Lake City, UT 84108-0900 | Oil & Gas Operator | Sep 1991 |
| 16 | Nova Natural Res Corp | Denver, CO 80202 | Oil & Gas Operator | Nov 1989 |
| 17 | Nova Petroleum Corp | Salt Lake City, UT 84147 | Oil & Gas Operator | Sep 1986 |
| 18 | NP Energy Corporation | Englewood, CO 80111 | Oil & Gas Operator | Jun 1989 |