| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Jun 2025 |
| 2 | Sawtooth Energy Partners LLC | Oil & Gas Operator | Nov 2005 | |
| 3 | Schneider Energy Services Inc | Oil & Gas Operator | Jul 2025 | |
| 4 | Smith Energy Corp | Oil & Gas Operator | Jan 2024 | |
| 5 | Smith Oil Properties Inc | Oil & Gas Operator | Nov 2022 | |
| 6 | Starlight Resources LLC | Oil & Gas Operator | Jun 2006 | |
| 7 | Strachan Exploration Inc | Englewood, CO 80112 | Oil & Gas Operator | Jul 2025 |
| 8 | Synergy Resources Corporation | Oil & Gas Operator | Oct 2022 |