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All Oil & Gas Companies
Oil & Gas Companies in California
Contra Costa County, CA Oil & Gas Companies
Oil & Gas Companies in Contra Costa County, CA
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Company Name
Company Location
Company Type
Most Recent Production
1
Reabold California LLC
Oil & Gas Operator
Apr 2025
2
Robert A. Cohan
Oil & Gas Operator
Jan 2018
3
Royale Energy Inc
San Diego, CA 92108-4518
Oil & Gas Operator
May 2025
Production numbers shown above are only for Contra Costa County, CA and for the production period listed.
Top Producing Companies in Contra Costa County, CA
California Resources Production Corporation
Pacific Gas And Electric Company
Peoco LLC
Reabold California LLC
Sunset Exploration Inc.
Browse Companies in Nearby Counties
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