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All Oil & Gas Companies
Oil & Gas Companies in Montana
Phillips County, MT Oil & Gas Companies
Oil & Gas Companies in Phillips County, MT
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Company Name
Company Location
Company Type
Most Recent Production
1
Decker Operating Co., L.L.C.
Houston, TX 77008
Oil & Gas Operator
Sep 2026
2
Diamond Oil & Gas LLC
Casper, WY 82604
Oil & Gas Operator
Jul 2026
Production numbers shown above are only for Phillips County, MT and for the production period listed.
Top Producing Companies in Phillips County, MT
Chelin LLC
Ridge Energy, LLC
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