{"name":"Signal Hill Petroleum Drilling Activity in Los Angeles County, California","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/signal-hill-petroleum/california/los-angeles","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Signal Hill Petroleum","operatorSlug":"signal-hill-petroleum","state":"CA","county":"Los Angeles","totalWells":724,"producingWells":582,"permits24mo":9,"spuds24mo":0,"ducCount":10,"topFormation":"Monterey","rankInCounty":6,"firstPermitDate":"1928-06-05","lastPermitDate":"2026-05-01"}