| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | D-Pex Operating Company | Oil & Gas Operator | Sep 2004 | |
| 2 | Daniel-Price Exploration Co | Tulsa, OK 74119 | Gas Operator | Apr 2011 |
| 3 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Feb 2025 |
| 4 | Derrick Resources Inc. | Henryetta, OK 74437-4249 | Oil & Gas Operator | Feb 2025 |
| 5 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 6 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 7 | Devon Louisiana Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2019 |
| 8 | DMS Oil Company | Houston, TX 77042 | Oil & Gas Operator | Mar 2025 |
| 9 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 10 | Drake Exploration Inc | Tulsa, OK 74105-4250 | Oil & Gas Operator | Mar 2025 |