| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D & D Exploration Co. Et Al | Oil Operator | Feb 1988 | |
| 2 | David New Operating Co., Inc. | Oil & Gas Operator | Feb 1999 | |
| 3 | Deepwell Co | Oil Operator | Jul 1989 | |
| 4 | Del Oil & Gas Corp | Oil Operator | Jul 1981 | |
| 5 | Delta Petroleum Inc | Houston, TX 77269-1007 | Oil & Gas Operator | May 2009 |
| 6 | Denbury Onshore, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2024 |
| 7 | Dixie Operating Company | Spring, TX 77379 | Oil & Gas Operator | Dec 2002 |
| 8 | Durango Operating, LLC | Ridgeland, MS 39157-5109 | Oil & Gas Operator | Jan 2024 |