| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 2 | Scissortail Energy LLC | Tulsa, OK 74137-3644 | Oil & Gas Operator | Oct 2025 |
| 3 | Sedna Energy LLC | Blanchard, OK 73010-8043 | Gas Operator | Apr 2017 |
| 4 | Sellmeyer Frank | San Rafael, CA 94901-1339 | Oil Operator | Dec 2014 |
| 5 | SM Energy Company | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 6 | Survivor Oil Inc | Tulsa, OK 74133 | Oil & Gas Operator | Sep 2007 |