| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Haussler Farms Inc. | Oil Operator | Dec 1992 | |
| 2 | HDT Inc. | Oil & Gas Operator | Nov 2025 | |
| 3 | Hilliard Oil & Gas, Inc. | New Orleans, LA 70112 | Oil & Gas Operator | May 2001 |
| 4 | Husky Oil Company | Cody, WY 82414 | Oil & Gas Operator | Dec 1984 |
| 5 | Hvi Cat Canyon Inc. | Oil & Gas Operator | Oct 2025 |