| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Sabre Exploratio | Oil Operator | Oct 1988 | |
| 2 | Schmitt Carmen I | Oil Operator | Dec 1996 | |
| 3 | Sedona Oil & Gas Corporation | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 4 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Sep 2025 |
| 5 | Slawson Donald C | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 6 | Slawson Explorat | Oil & Gas Operator | Dec 1996 | |
| 7 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 8 | Standard Operating Company | Wichita, KS 67205 | Oil & Gas Operator | Jun 2025 |
| 9 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 10 | Strabala Joseph | Oil Operator | Jan 1992 | |
| 11 | Stromquist C Dal | Oil & Gas Operator | Aug 1991 |