Oil & Gas Companies in Calhoun County, WV
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Hallwood Petroleum, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 2 | Haught Energy Corporation | Smithville, WV 26178-7004 | Oil & Gas Operator | Dec 2021 |
| 3 | Haught, Glenn L. & Sons | | Oil & Gas Operator | Dec 1997 |
| 4 | Hays & Anderson | | Oil & Gas Operator | Feb 2019 |
| 5 | HG Energy LLC | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 6 | Hildreth, Roy G & Son Inc | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 7 | Hildreth, Va Roy | | Oil & Gas Operator | Dec 1996 |
| 8 | Hope Gas, Inc. | Richmond, VA 23261 | Oil & Gas Operator | Dec 2010 |
| 9 | Horizon Energy Corporation | Sand Fork, WV 26430 | Oil & Gas Operator | Dec 2021 |
| 10 | Hunt, K Metal | | Oil & Gas Operator | Dec 2021 |
Production numbers shown above are only for Calhoun County, WV and for the production period listed.