Oil & Gas Companies in Sumner County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | D & A Oil Company | Abilene, TX 79606 | Oil & Gas Operator | Oct 2018 |
| 2 | D & A Oil Company, A General Partnership | Clearwater, KS 67026 | Oil Operator | Dec 2024 |
| 3 | D & M Oil, Inc. | Winfield, KS 67156 | Oil Operator | Apr 2001 |
| 4 | Dawson-Markwell | | Oil & Gas Operator | Nov 1996 |
| 5 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jun 2025 |
| 6 | Daystar Petroleum, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Jun 2025 |
| 7 | Delhi Pipeline | | Oil & Gas Operator | Sep 1999 |
| 8 | Delta Petroleum Company | Houston, TX 77267 | Oil Operator | Aug 1996 |
| 9 | Delta Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2024 |
| 10 | Denmark Oil | Wichita, KS 67212 | Oil & Gas Operator | May 2000 |
| 11 | Destiny Petroleum LLC | The Woodlands, TX 77381 | Oil & Gas Operator | May 2024 |
| 12 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 13 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Aug 2025 |
| 14 | Docking Developm | | Oil & Gas Operator | Dec 1996 |
| 15 | Docking Development Company, LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Oct 2013 |
| 16 | Doralex Energy I | | Oil & Gas Operator | Feb 1995 |
| 17 | Doralex Energy, Inc. | San Angelo, TX 76904 | Oil Operator | Feb 2000 |
| 18 | Double "D" Oil Company, Inc. | Winfield, KS 67156 | Oil Operator | Jun 2025 |
| 19 | Drake Exploration LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Jun 2025 |
| 20 | Dunne-Gardner Pe | | Oil & Gas Operator | Nov 1992 |
Production numbers shown above are only for Sumner County, KS and for the production period listed.