Oil & Gas Companies in Ellsworth County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Mar 2026 |
| 2 | Har-Ken Agent, Ok | Owensboro, KY 42302 | Oil Operator | Mar 2026 |
| 3 | Harbacek Florence | Holyrood, KS 67450 | Oil Operator | Aug 2002 |
| 4 | Herman L. Loeb LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Mar 2026 |
| 5 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Mar 2026 |
| 6 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Mar 2026 |
| 7 | Hoffman Oil, Inc. | Claflin, KS 67525 | Oil Operator | Mar 2026 |
| 8 | Horizon Oil & Ga | | Oil & Gas Operator | Jan 1992 |
| 9 | Hupfer Oil & Gas | Hays, KS 67601 | Oil & Gas Operator | Dec 1993 |
Production numbers shown above are only for Ellsworth County, KS and for the production period listed.