| 1 | Nadel And Gussman, L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2024 |
| 2 | National Energy Group Inc | Dallas, TX 75206 | Oil & Gas Operator | Sep 2014 |
| 3 | Nbi Services, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Apr 2024 |
| 4 | Neg Operating LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Apr 2017 |
| 5 | Nelson Exploration Corporation | | Oil & Gas Operator | Jan 2024 |
| 6 | Nemaha Environmental Services LLC | Enid, OK 73703 | Oil Operator | Feb 2024 |
| 7 | Neok Production Company LLC | Nowata, OK 74048-0428 | Oil & Gas Operator | Jan 2024 |
| 8 | NFC Petroleum Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1996 |
| 9 | Njre Operating Company | Tulsa, OK 74119 | Gas Operator | Dec 2016 |
| 10 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 11 | Noble Energy Production Inc | Houston, TX 77067 | Oil & Gas Operator | Apr 2024 |
| 12 | Northbrook Oil & Gas Co LLC | Norman, OK 73072 | Oil & Gas Operator | Nov 2014 |
| 13 | Nye Oil Company | Oklahoma City, OK 73118-1245 | Oil & Gas Operator | Jun 2004 |