| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | S & W Drilling C | Oil Operator | May 1985 | |
| 2 | Sauvage W W Inco | Oil Operator | Nov 1989 | |
| 3 | Slawson Donald C | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 4 | Source Petroleum | Wichita, KS 67202 | Oil & Gas Operator | Oct 1993 |
| 5 | Stoeppelwerth DR | Oil Operator | May 1993 | |
| 6 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Jun 2025 |
| 7 | Stromquist C Dal | Oil & Gas Operator | Aug 1991 | |
| 8 | Stromquist, C. Dale, A General Partnership | Liberal, KS 67901 | Oil & Gas Operator | Aug 2010 |
| 9 | Suemaur Expl. & Prod., LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jun 2024 |