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All Oil & Gas Companies
Oil & Gas Companies in North Dakota
Mountrail County, ND Oil & Gas Companies
Oil & Gas Companies in Mountrail County, ND
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Company Name
Company Location
Company Type
Most Recent Production
1
Fidelity Exploration & Production Company
Denver, CO 80203
Oil & Gas Operator
Jan 2026
2
Foundation Energy Management, LLC
Addison, TX 75001
Oil & Gas Operator
Feb 2026
Production numbers shown above are only for Mountrail County, ND and for the production period listed.
Top Producing Companies in Mountrail County, ND
Continental Resources, Inc.
Devon Energy Williston, L.L.C
EOG Resources Inc
Hess Bakken Investments II, LLC
Hunt Oil Company
Iron Oil Operating, LLC
Lime Rock Resources III-A, L.P.
Marathon Oil Company
Murex Petroleum Corporation
Oasis Petroleum North America LLC
Petro-Hunt, L.L.C.
Petrogulf Corporation
Phoenix Operating LLC
Silver Hill Energy Operating, LLC
Slawson Exploration Company Inc
Sogc, Inc.
Stephens Williston, LLC Dba Seg Williston, LLC
White Butte Oil Operations, LLC
Whiting Oil And Gas Corporation
XTO Energy Inc.
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