| 2801 | Swinea Well Service Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2015 |
| 2802 | Swingle Drilling Inc | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2025 |
| 2803 | Swinkwood Oil Co | | Oil Operator | Apr 2015 |
| 2804 | Switchgrass E&P Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Mar 2026 |
| 2805 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | Jun 2026 |
| 2806 | SWN Production (Louisiana), LLC | | Oil & Gas Operator | Dec 2024 |
| 2807 | SWN Production (Ohio), LLC | Spring, TX 77389 | Oil & Gas Operator | Mar 2024 |
| 2808 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Dec 2025 |
| 2809 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 2810 | Swo & Ism, LLC | | Oil & Gas Operator | Dec 2021 |
| 2811 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | Jun 2026 |
| 2812 | Swordfish Energy Operating, LLC | Houston, TX 77060 | Oil & Gas Operator | Jun 2026 |
| 2813 | SWS | Humble, TX 77338 | Oil Operator | Jun 2026 |
| 2814 | SWS Operating LLC | Lawton, OK 73501-3236 | Oil Operator | Sep 2024 |
| 2815 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 2816 | SX54, LLC | Sheridan, WY 82801 | Oil Operator | Nov 2017 |
| 2817 | Sycamore Development Partners LLC | | Oil & Gas Operator | Apr 2026 |
| 2818 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | Jun 2026 |
| 2819 | Sydson D'Oro Exploration Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 1992 |
| 2820 | Sydson Energy, Inc. | Houston, TX 77019 | Oil & Gas Operator | Jun 2026 |
| 2821 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 2822 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2026 |
| 2823 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | Jun 2026 |
| 2824 | Sylvan Oil Operating Company | Tulsa, OK 74103-3516 | Oil & Gas Operator | Apr 2016 |
| 2825 | Sylvite Corp | Tulsa, OK 741363908 | Oil & Gas Operator | Dec 2000 |
| 2826 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | Jun 2026 |
| 2827 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | Jun 2026 |
| 2828 | Synd Enterprises Inc | Lakewood, NY 14750-9613 | Oil & Gas Operator | Dec 2006 |
| 2829 | Syndex Resources, Inc. | Wellesley, MA 02181-000 | Oil & Gas Operator | Dec 2021 |
| 2830 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2026 |
| 2831 | Synergy Development Corp | | Oil Operator | Apr 2011 |
| 2832 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
| 2833 | Synergy Oil & Gas LLC | | Oil & Gas Operator | Feb 2026 |
| 2834 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 2835 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 2836 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 2837 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2026 |
| 2838 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Nov 2025 |
| 2839 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 2840 | Synergy Resources | Artesia, NM 88210 | Oil & Gas Operator | Jan 2015 |
| 2841 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | Jun 2026 |
| 2842 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | Jun 2026 |
| 2843 | Szumigala, Edward R. & Ruth A. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |