| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Diversified Production LLC | Keithville, LA 71047 | Oil & Gas Operator | Oct 2025 |
| 2 | Dominion Energy Transmission, Inc. | Oil & Gas Operator | Dec 2019 | |
| 3 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 4 | Dorward Energy Corporation | Saint Petersburg, FL 33701-3255 | Oil & Gas Operator | Dec 2024 |
| 5 | Dri Operating Company | West Chester, PA 19382-0000 | Gas Operator | Dec 2008 |