| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2026 |
| 2 | Sappington Crude Oil Inc | Oil & Gas Operator | Dec 2025 | |
| 3 | Sappington Walter B Dianne M | Oil Operator | Dec 2025 | |
| 4 | Schmude And Pangborn Associates | Oil & Gas Operator | Apr 1993 | |
| 5 | Sogc, Inc. | Salt Lake Cty, UT 84131 | Oil & Gas Operator | Apr 2026 |
| 6 | Southern Energy Operating Co Inc | Oil Operator | Dec 2025 | |
| 7 | Sullivan & Co. | Tulsa, OK 74114 | Oil & Gas Operator | May 2022 |
| 8 | Sun Exploration And Production Co | Oil & Gas Operator | Jan 1990 |