Oil & Gas Companies in Duchesne County, UT
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Mapco Inc | Billings, MT 59102 | Oil & Gas Operator | Dec 1983 |
| 2 | Mapco Oil & Gas Company | Tulsa, OK 74101-2115 | Oil & Gas Operator | Jan 1985 |
| 3 | Mapco Production Co | Billings, MT 59102 | Oil & Gas Operator | Apr 1994 |
| 4 | Maxus Exploration Company | Dallas, TX 75201 | Oil & Gas Operator | Jan 1995 |
| 5 | McCulliss Resources Co Inc | Littleton, CO 80161-3248 | Oil & Gas Operator | Jun 2009 |
| 6 | McCulloch Oil Corp Of Ca | | Oil & Gas Operator | May 1980 |
| 7 | Medallion Exploration | Holladay, UT 84117 | Oil & Gas Operator | Dec 2015 |
| 8 | Medallion Production Company | Tulsa, OK 74103 | Oil & Gas Operator | May 1997 |
| 9 | Middle Fork Energy Uinta, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2024 |
| 10 | Moncrief Oil | Casper, WY 82602 | Oil & Gas Operator | Feb 1986 |
| 11 | Monsanto | Englewood, CO 80111 | Oil & Gas Operator | Apr 1986 |
| 12 | Mountain Fuel Supply Co | Salt Lake City, UT 84139 | Oil & Gas Operator | May 1984 |
| 13 | Mountain Oil And Gas Inc | Roosevelt, UT 84066 | Oil & Gas Operator | Jan 2024 |
Production numbers shown above are only for Duchesne County, UT and for the production period listed.