| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 401 | Swander, Everett | Cunningham, KS 67035 | Oil Operator | May 1998 |
| 402 | Swenco-Western I | Oil Operator | Sep 1987 | |
| 403 | Swenton, Michael J. | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 404 | Swift Energy Com | Oil & Gas Operator | Sep 1995 | |
| 405 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 406 | SX54, LLC | Sheridan, WY 82801 | Oil Operator | Nov 2017 |