{"name":"Occidental Petroleum (Oxy) Drilling Activity in Contra Costa County, California","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/occidental/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":"Occidental Petroleum (Oxy)","operatorSlug":"occidental","state":"CA","county":"Contra Costa","totalWells":48,"producingWells":23,"permits24mo":0,"spuds24mo":0,"ducCount":25,"topFormation":null,"rankInCounty":2,"firstPermitDate":"1962-06-09","lastPermitDate":"1985-08-12"}