| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H And H Star Energy Inc Dba Petrostar Energy | Oil & Gas Operator | Feb 2004 | |
| 2 | H And K Resources Inc | Oil Operator | Dec 2012 | |
| 3 | Hasso Energy LLC | Oil & Gas Operator | Nov 2023 | |
| 4 | Henry Sappington Machine & Tool Dba Henry Sappingt | Oil Operator | Oct 2017 | |
| 5 | Howard Energy Co Inc | Traverse City, MI 49684 | Oil & Gas Operator | Jun 2014 |