| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Dakota Production Co., Inc. | Neodesha, KS 66757 | Gas Operator | Sep 2025 |
| 2 | Damson Oil Corpo | Oil & Gas Operator | May 1994 | |
| 3 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Dec 2025 |
| 4 | Daystar Petroleum Inc | Eureka, KS 67045 | Oil & Gas Operator | Sep 2025 |
| 5 | Dearinger Compan | Oil Operator | Dec 1994 | |
| 6 | Dorado Gas Resources LLC | Centennial, CO 80112 | Oil & Gas Operator | Jul 2009 |
| 7 | Dotson, Floyd | Oil Operator | Dec 1980 | |
| 8 | Double L Drilling | Yates Center, KS 66783 | Oil Operator | Jun 2000 |
| 9 | Dreyer Oil | Oil Operator | Dec 2019 | |
| 10 | Duke Oil & Gas Company, LLC | Wellsville, KS 66092 | Oil Operator | Sep 2025 |