| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D & M Company | Rockdale, TX 76567 | Oil & Gas Operator | Mar 2008 |
| 2 | Dash Production Company, Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Mar 2025 |
| 3 | Daystar Operating Company, LLC | Austin, TX 78750 | Oil & Gas Operator | Apr 2008 |
| 4 | Deltex Minerals Inc. | Peachtree Cty, GA 30269 | Oil & Gas Operator | Mar 2025 |
| 5 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2014 |
| 6 | DSW Production Corp. | Houston, TX 77265 | Oil & Gas Operator | Mar 2025 |
| 7 | Dyad Petroleum Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2021 |