| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Damson Oil Corpo | Oil & Gas Operator | May 1994 | |
| 2 | Derrick Resources Inc. | Henryetta, OK 74437-4249 | Oil & Gas Operator | Jun 2025 |
| 3 | Devon Energy Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
| 4 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 5 | Dorchester Hugot | Gas Operator | Sep 1993 | |
| 6 | Dorchester Minerals Operating LP | Dallas, TX 75219 | Oil & Gas Operator | Jun 2022 |