Oil & Gas Companies in Sheridan County, MT
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Main Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | May 2009 |
| 2 | Makoil, Inc. | Lake Forest, CA 92630 | Oil & Gas Operator | Jul 2007 |
| 3 | Manuel Corporation | Wichita, KS 67206 | Oil & Gas Operator | Jul 2025 |
| 4 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2025 |
| 5 | McCullis Resources Co., Inc. | Littleton, CO 80161 | Oil & Gas Operator | Jul 2025 |
| 6 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
| 7 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
Production numbers shown above are only for Sheridan County, MT and for the production period listed.