| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Jun 2025 |
| 2 | Haffner Dan | Hoxie, KS 67740 | Oil Operator | Jun 2025 |
| 3 | Hansen Dane G TR | Oil Operator | Feb 1995 | |
| 4 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Jun 2025 |
| 5 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 6 | Hoff Oil & Gas | Oil Operator | May 2013 | |
| 7 | Hugoton Energy C | Oil & Gas Operator | Feb 2004 |