{"name":"Carey John Oil Drilling Activity in Sangamon County, Illinois","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/carey-john-oil/illinois/sangamon","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Carey John Oil","operatorSlug":"carey-john-oil","state":"IL","county":"Sangamon","totalWells":173,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":1,"firstPermitDate":"1970-01-01","lastPermitDate":"1999-09-09"}