Oil & Gas Companies in Trego County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Dakota Resources | | Oil & Gas Operator | Jan 1989 |
| 2 | Damar Resources, Inc. | Hays, KS 67601 | Oil & Gas Operator | Apr 2025 |
| 3 | Dane G. Hansen Trust | | Oil Operator | Dec 1994 |
| 4 | Darrah John J Jr | | Oil & Gas Operator | Oct 1994 |
| 5 | Darrah John Jay Jr | Wichita, KS 67201 | Oil & Gas Operator | Aug 2025 |
| 6 | Darrah Oil Company LLC | Wichita, KS 67201 | Oil & Gas Operator | Oct 2025 |
| 7 | Davis Petroleum | | Oil & Gas Operator | Dec 1996 |
| 8 | Davis Petroleum, Inc. | Great Bend, KS 67530 | Oil Operator | Aug 2021 |
| 9 | Daystar Petroleum, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Jun 2025 |
| 10 | Decab Company | Victoria, KS 67671 | Oil Operator | Aug 1996 |
| 11 | Diehl Glenn D Oi | | Oil Operator | Jul 1993 |
| 12 | Diehl Oil Inc | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 13 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Aug 2025 |
| 14 | Double "K" Oil, Inc. | Ellis, KS 67637 | Oil Operator | Dec 2019 |
| 15 | Double D'S LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 16 | Downing-Nelson Oil Co Inc | Hays, KS 67601 | Oil & Gas Operator | Jun 2025 |
| 17 | DR Well Operator | | Oil Operator | Jan 1990 |
| 18 | Dreiling Oil Inc | Hays, KS 67601 | Oil Operator | Jun 2018 |
| 19 | Dunne Equities I | | Oil & Gas Operator | Dec 1995 |
Production numbers shown above are only for Trego County, KS and for the production period listed.