| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Dec 2023 |
| 2 | Haven Oil & Gas | Hutchinson, KS 67504 | Oil & Gas Operator | Mar 2009 |
| 3 | Hawkeye Oil | Oil & Gas Operator | Jun 2007 | |
| 4 | Helberg Oil Comp | Oil Operator | Mar 1995 | |
| 5 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Dec 2023 |
| 6 | Hiebert & Wedel | Oil & Gas Operator | May 1995 | |
| 7 | Hillenburg Oil C | Oil Operator | Apr 1994 | |
| 8 | Hillenburg Oil Co., A General Partnership | Broken Arrow, OK 74011 | Oil Operator | Dec 2023 |
| 9 | Holton Brothers | Canton, KS 67428 | Oil Operator | Apr 1990 |