| 1 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 2 | Newark E&P Operating, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jun 2017 |
| 3 | Newark Energy LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2011 |
| 4 | Nichols Oil & Gas Corporation | Shreveport, LA 71135 | Oil & Gas Operator | Aug 2003 |
| 5 | Nordan Oil & Gas Corporation | Abilene, TX 79604 | Oil & Gas Operator | Feb 2018 |
| 6 | North American Exploration Co. | Abilene, TX 79602 | Oil & Gas Operator | Apr 1998 |
| 7 | North Texas Llano Operating Corp | Dallas, TX 75225 | Oil & Gas Operator | Dec 2024 |
| 8 | North Texas Plugging, LLC | Denton, TX 76205 | Oil & Gas Operator | Dec 2024 |
| 9 | Northridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 10 | Now Development Co., Inc. | Tyler, TX 75702 | Oil & Gas Operator | Dec 2017 |