| 1 | Atlantic Richfield Company | Plano, TX 75074 | Oil & Gas Operator | Dec 2016 |
| 2 | Benelli Oil LLC | | Oil Operator | Dec 2023 |
| 3 | Country Boy Oil Co Inc | | Oil Operator | Nov 2017 |
| 4 | D And B Brine Inc | | Oil Operator | Sep 2024 |
| 5 | Dart Oil & Gas Corporation | Mason, MI 48854 | Oil & Gas Operator | Jun 2018 |
| 6 | Dominion Midwest Energy Inc | | Oil & Gas Operator | Dec 2007 |
| 7 | Golden Petroleum Corp And Black River Oil Corp | | Oil & Gas Operator | May 2016 |
| 8 | H And H Star Energy Inc Dba Petrostar Energy | | Oil & Gas Operator | Feb 2004 |
| 9 | Jennings Petroleum And Enveron Corp | | Oil & Gas Operator | Mar 2017 |
| 10 | Layline Oil And Gas LLC | Marion, MI 49665 | Oil & Gas Operator | Sep 2024 |
| 11 | Mercury Exploration Co | Fort Worth, TX 76104 | Oil & Gas Operator | Dec 2006 |
| 12 | Mid Michigan Gas Storage Co | | Oil & Gas Operator | Mar 2022 |
| 13 | Northwestern Natural Gas | | Gas Operator | Aug 2000 |
| 14 | O I L Energy Corp | | Oil & Gas Operator | Oct 2017 |
| 15 | Ranch Production LLC | | Oil & Gas Operator | Jun 2024 |
| 16 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2024 |
| 17 | Sappington Crude Oil Inc | | Oil & Gas Operator | Dec 2023 |
| 18 | Savoy Energy LP | Traverse City, MI 49685-1560-1560 | Oil & Gas Operator | May 2024 |
| 19 | Slow Stroke Productions LLC | | Oil Operator | Oct 2024 |
| 20 | Terra Energy LTD | | Oil & Gas Operator | Apr 2018 |
| 21 | Ward M Haggard Oil And Gas Exploration Inc | | Oil Operator | Oct 2024 |
| 22 | Wellmaster Production Co LLC | | Oil & Gas Operator | Jul 2015 |
| 23 | Wolverine Environmental Production Inc | | Oil & Gas Operator | Sep 2000 |