| 1 | S & JB, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Jul 2010 |
| 2 | S&JB, LLC | Rockdale, TX 76567 | Oil & Gas Operator | Apr 2024 |
| 3 | Sage Energy Company | San Antonio, TX 78215 | Oil & Gas Operator | Apr 2024 |
| 4 | San Dia Producing Company | Deanville, TX 77852 | Oil & Gas Operator | Apr 2024 |
| 5 | Schneider, Ernest | Rockdale, TX 76567 | Oil & Gas Operator | Dec 2014 |
| 6 | Scully And Smith Oil Corporation | Salado, TX 76571 | Oil & Gas Operator | Feb 1995 |
| 7 | SDG Operating Company, Inc | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 8 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2024 |
| 9 | Sellers Lease Service, Inc. | Flatonia, TX 78941 | Oil & Gas Operator | Apr 2024 |
| 10 | Shale Operating Co. | Dallas, TX 75356 | Oil & Gas Operator | Apr 2024 |
| 11 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Apr 2024 |
| 12 | Sheridan Production Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Jan 2024 |
| 13 | Shoreham Oil & Gas Company, Inc. | Katy, TX 77492 | Oil & Gas Operator | Apr 2024 |
| 14 | SHWJ Oil & Gas Co., Inc. | Oil City, LA 71061 | Oil Operator | Apr 2024 |
| 15 | Sierra Minerals, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Apr 2024 |
| 16 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 17 | Smith, L C Production | Jacksonville, TX 75766 | Oil Operator | Apr 2024 |
| 18 | Smith, L. C. | Jacksonville, TX 75766 | Oil & Gas Operator | Apr 2024 |
| 19 | Southwest Resources, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 20 | Stewardship Resources | Roanoke, TX 76262 | Oil & Gas Operator | Jun 2022 |
| 21 | Stingray Oil Company, Inc. | Mullin, TX 76864 | Oil Operator | Apr 2024 |
| 22 | Striper Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2002 |
| 23 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Apr 2024 |