| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D. C. Bintliff-McCormick O&G | Oil & Gas Operator | Oct 1983 | |
| 2 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 3 | Damson Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2005 |
| 4 | Daniel Oil Company | Oil & Gas Operator | Jan 1983 | |
| 5 | DCP, Inc. | Oil & Gas Operator | Jun 1990 | |
| 6 | Destin Operating Company, Inc. | Oil & Gas Operator | Jan 2023 | |
| 7 | Dew Oil And Gas Co.,Inc. | Oil & Gas Operator | Dec 1989 | |
| 8 | DKM Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 2011 |
| 9 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 10 | Duer Wagner & Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1998 |