{"name":"The Ohio Oil Drilling Activity in St Clair County, Illinois","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/the-ohio-oil/illinois/st-clair","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"The Ohio Oil","operatorSlug":"the-ohio-oil","state":"IL","county":"St Clair","totalWells":71,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":6,"firstPermitDate":"1928-01-01","lastPermitDate":"1995-02-24"}