| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Oct 2025 |
| 2 | Apollo Exploration And Development Inc | Oil & Gas Operator | Jun 2025 | |
| 3 | CMS Oil And Gas Company | Jackson, MI 49201 | Oil & Gas Operator | Oct 2002 |
| 4 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 5 | Delta Oil Co Inc | Oil & Gas Operator | Oct 2023 | |
| 6 | Great Lakes Niagaran Inc | Oil & Gas Operator | Mar 1988 | |
| 7 | Hound Resources LLC | Oil & Gas Operator | Jul 2025 | |
| 8 | Jaguar Energy LLC | Oil & Gas Operator | Jun 2022 | |
| 9 | Lambda Energy Resources LLC | Oil & Gas Operator | Aug 2025 | |
| 10 | Lignum Oil Company | Oil & Gas Operator | Dec 1989 | |
| 11 | Lindenmuth & Associates Inc | Austin, TX 78703 | Oil & Gas Operator | Jun 2025 |
| 12 | Mack Oil Corp | Oil & Gas Operator | Nov 1998 | |
| 13 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Oct 2025 |
| 14 | Miller Brothers | Oil & Gas Operator | Nov 2000 | |
| 15 | O I L Energy Corp | Oil & Gas Operator | Oct 2017 | |
| 16 | O I L Niagaran LLC | Oil & Gas Operator | May 2017 | |
| 17 | Ososki Edward D Dba Federal Oil Company | Oil & Gas Operator | Jun 2025 | |
| 18 | Swepi LP | Houston, TX 77079 | Oil & Gas Operator | Jul 2020 |
| 19 | Total Petroleum Inc | Houston, TX 77210 | Oil & Gas Operator | Feb 1998 |