Oil & Gas Companies in Seward County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Darrah Oil Company, LLC | Wichita, KS 67201 | Oil & Gas Operator | Apr 2026 |
| 2 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2026 |
| 3 | Daystar Petroleum Inc | Eureka, KS 67045 | Oil & Gas Operator | Dec 2025 |
| 4 | Deltex Petroleum | | Oil Operator | Nov 1994 |
| 5 | Denmark Oil | Wichita, KS 67212 | Oil & Gas Operator | May 2000 |
| 6 | Derrick Resources Inc | Henryetta, OK 74437-4249 | Oil & Gas Operator | Jan 2026 |
| 7 | Devon Energy Production Company, L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2026 |
| 8 | Diamond Chemical | | Oil & Gas Operator | Jan 1995 |
| 9 | DMS Oil Company | Houston, TX 77042 | Oil & Gas Operator | Jan 2026 |
| 10 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Feb 2026 |
| 11 | Domar Oil & Gas | | Gas Operator | May 1995 |
| 12 | Domar Oil & Gas Inc | Liberal, KS 67905 | Oil & Gas Operator | Oct 2000 |
| 13 | Duke Drilling Co | Wichita, KS 67202 | Oil & Gas Operator | Feb 2006 |
Production numbers shown above are only for Seward County, KS and for the production period listed.