| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2025 |
| 2 | San Marco Petroleum Inc | Denver, CO 80293 | Oil & Gas Operator | Oct 2025 |
| 3 | SG Interests I LTD | Houston, TX 77007 | Oil & Gas Operator | Oct 2025 |
| 4 | Simcoe LLC | Durango, CO 81301 | Oil & Gas Operator | Oct 2025 |
| 5 | Simmons, Inc.* D. J. | Oil & Gas Operator | May 2020 |