| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Mar 2026 |
| 2 | Slawson Donald C | Wichita, KS 67202 | Oil & Gas Operator | Oct 2025 |
| 3 | Slawson Exploration Company Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2026 |
| 4 | SMG Resources LLC | Oil & Gas Operator | Feb 2026 | |
| 5 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 6 | Stratakan Exploration, LLC | Plainville, KS 67663 | Oil & Gas Operator | Feb 2026 |