| 1 | Sabinal Energy Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Dec 2024 |
| 2 | Samedan Oil Corporation | Houston, TX 77067 | Oil & Gas Operator | Dec 2019 |
| 3 | Santa Fe Energy Resources, Inc. | Houston, TX 77024 | Oil & Gas Operator | Mar 2008 |
| 4 | Santa Fe Snyder Corporation | Houston, TX 77024 | Oil & Gas Operator | Oct 2000 |
| 5 | Santo Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 6 | Scythian, LTD. | Midland, TX 79701 | Oil & Gas Operator | Dec 2020 |
| 7 | Seaboard Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Dec 2024 |
| 8 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2024 |
| 9 | Smith Pipe Of Abilene | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 10 | Socorro Exploration, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Dec 2024 |
| 11 | SSC, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Dec 2024 |
| 12 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 13 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | Dec 2024 |
| 14 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Dec 2024 |