{"name":"Exxon Mobil Drilling Activity in San Mateo County, California","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/exxon-mobil-corporation/california/san-mateo","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Exxon Mobil","operatorSlug":"exxon-mobil-corporation","state":"CA","county":"San Mateo","totalWells":3,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":3,"topFormation":null,"rankInCounty":2,"firstPermitDate":"1950-06-04","lastPermitDate":"1959-07-15"}