| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D.O.E. Energy | Palestine, TX 75801 | Oil & Gas Operator | Dec 2024 |
| 2 | Daco Oil | Joinerville, TX 75658 | Oil & Gas Operator | Aug 2019 |
| 3 | Dallas Operating Corp. | Dallas, TX 75205 | Oil & Gas Operator | Nov 2006 |
| 4 | Daniel Explorations Inc | Georgetown, TX 78627 | Oil & Gas Operator | Apr 2009 |
| 5 | Deck Oil Company | Tulsa, OK 74101 | Oil & Gas Operator | Jun 2020 |
| 6 | DG&E/Slocum, Limited Partnership | Dallas, TX 75206 | Oil & Gas Operator | Dec 2024 |
| 7 | Double Diamond Petroleum, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |