{"name":"Grace Petroleum Drilling Activity in San Luis Obispo County, California","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/grace-petroleum/california/san-luis-obispo","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Grace Petroleum","operatorSlug":"grace-petroleum","state":"CA","county":"San Luis Obispo","totalWells":57,"producingWells":10,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":7,"firstPermitDate":"1957-09-04","lastPermitDate":"2015-05-10"}