| 1 | Sabinal Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | Apr 2024 |
| 2 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Apr 2024 |
| 3 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 4 | Santa Fe Energy Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 5 | Saxet Operating Co.,Inc. | Madisonville, TX 77864 | Oil & Gas Operator | Apr 2024 |
| 6 | SDG Operating Company, Inc | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 7 | Shelby Boswell Operator, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 8 | Shell Trading Us Company | Houston, TX 77210 | Oil & Gas Operator | Dec 2023 |
| 9 | Silver Creek Oil & Gas, LLC | Flower Mound, TX 75022 | Oil & Gas Operator | Apr 2024 |
| 10 | Sinclair Oil & Gas Company | Salt Lake Cty, UT 84130 | Oil & Gas Operator | Apr 2024 |
| 11 | Sinclair Oil Corporation | Salt Lake Cty, UT 84130 | Oil & Gas Operator | Aug 2006 |
| 12 | SND Operating, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 13 | Sonat Exploration Company -Tyler | Houston, TX 77251 | Oil & Gas Operator | Dec 1999 |
| 14 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 15 | Stacha, Eddy A. | Rice, TX 75155 | Oil & Gas Operator | Apr 2024 |
| 16 | Stonebriar Operating, LLC | Plano, TX 75093 | Oil Operator | Apr 2024 |
| 17 | Stroube Energy Corporation | Dallas, TX 75248 | Oil & Gas Operator | Jan 2012 |
| 18 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |
| 19 | SW Operating, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Sep 2000 |