{"name":"Chevron Drilling Activity in Contra Costa County, California","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/chevron/california/contra-costa","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-02","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Chevron","operatorSlug":"chevron","state":"CA","county":"Contra Costa","totalWells":51,"producingWells":6,"permits24mo":0,"spuds24mo":0,"ducCount":43,"topFormation":null,"rankInCounty":1,"firstPermitDate":"1943-10-12","lastPermitDate":"1982-12-07"}