| 2901 | Synergy Development Corp | | Oil Operator | Apr 2011 |
| 2902 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
| 2903 | Synergy Oil & Gas LLC | | Oil & Gas Operator | Sep 2025 |
| 2904 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 2905 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 2906 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 2907 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 2908 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Jul 2024 |
| 2909 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 2910 | Synergy Resources | Artesia, NM 88210 | Oil & Gas Operator | Jan 2015 |
| 2911 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | Dec 2025 |
| 2912 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | Dec 2025 |
| 2913 | Szumigala, Edward R. & Ruth A. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |