| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D T E Gas And Oil Co | Gas Operator | May 2007 | |
| 2 | Dart Oil & Gas Corporation | Mason, MI 48854 | Oil & Gas Operator | Jun 2018 |
| 3 | Delta Oil Co Inc | Oil & Gas Operator | Oct 2023 | |
| 4 | Devonian Energy Inc | Gas Operator | Oct 2024 | |
| 5 | Devonian Energy Inc And Muzyl Oil Corp | Oil & Gas Operator | Aug 1999 | |
| 6 | Diamond Petroleum LLC | Oil & Gas Operator | Dec 2005 | |
| 7 | Dominion Midwest Energy Inc | Oil & Gas Operator | Dec 2007 | |
| 8 | Don Yohe Enterprises Inc. | Armada, MI 48005 | Oil & Gas Operator | Apr 2018 |
| 9 | Duff Oil Co | Oil & Gas Operator | Aug 2000 |