| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Habit Petroleum, LLC | Hays, KS 67601 | Oil Operator | Feb 2026 |
| 2 | Halliburton Oil | Oil & Gas Operator | Sep 2008 | |
| 3 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 4 | Hays Oil Field S | Oil Operator | Nov 1988 | |
| 5 | Hellar Drilling | Oil & Gas Operator | Jan 1994 | |
| 6 | Helmerich & Payn | Oil & Gas Operator | Aug 1995 |