| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Samson Oil Company | Oil & Gas Operator | Feb 2001 | |
| 2 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Aug 2025 |
| 3 | Sawtooth Energy Partners LLC | Oil & Gas Operator | Nov 2005 | |
| 4 | Schreider & Company, Inc | Oil & Gas Operator | Jun 2023 | |
| 5 | Sovereign Energy LLC | Oil & Gas Operator | Sep 2011 | |
| 6 | Sovereign Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2016 |