| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Halliburton Oil | Oil & Gas Operator | Sep 2008 | |
| 2 | Hansen Dane G TR | Oil Operator | Feb 1995 | |
| 3 | Hansen, Dane G. - Trust | Logan, KS 67646 | Oil Operator | Oct 2013 |
| 4 | Hawn Petroleum I | Oil Operator | Jun 1989 | |
| 5 | Heartland Enterprises, Incorporated | Phillipsburg, KS 67661 | Oil Operator | May 2005 |