Oil & Gas Companies in Weston County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | M & K Oil Company LLC | Gillette, WY 82716 | Oil & Gas Operator | Feb 2024 |
| 2 | M-3 Industries | Casper, WY 82602 | Oil & Gas Operator | Mar 2024 |
| 3 | Maguire Oil Company | Dallas, TX 75270 | Oil & Gas Operator | Mar 2015 |
| 4 | Maha Energy Us Inc | | Oil Operator | Nov 2023 |
| 5 | Manewal Bradley Oil Company | Newcastle, WY 82701 | Oil & Gas Operator | Aug 2013 |
| 6 | Manx Oil Corporation | Casper, WY 82601 | Oil & Gas Operator | Jun 2010 |
| 7 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 8 | Marlin Oil Company LLC | Gillette, WY 82718 | Oil & Gas Operator | Mar 2023 |
| 9 | Maxim Drilling & Expl Inc | Gillette, WY 82717 | Oil & Gas Operator | Feb 2024 |
| 10 | McRae & Henry LTD | Golden, CO 80401 | Oil & Gas Operator | May 2022 |
| 11 | Medicine Bow Operating Company | Houston, TX 77002 | Oil & Gas Operator | Apr 2014 |
| 12 | Mid-Con Energy Operating, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2024 |
| 13 | Moco Oil Inc | | Oil Operator | May 1984 |
| 14 | Mon-Oil Inc | | Oil & Gas Operator | Apr 1996 |
| 15 | Mueller Fred W | | Oil & Gas Operator | Dec 1995 |
| 16 | Mundell F E | Watertown, SD 57201 | Oil & Gas Operator | Aug 1994 |
| 17 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Feb 2024 |
| 18 | Mystique Developments | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
Production numbers shown above are only for Weston County, WY and for the production period listed.