{"name":"Ohio Oil Company Drilling Activity in Cumberland County, Illinois","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/ohio-oil-company/illinois/cumberland-il","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-09-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Ohio Oil Company","operatorSlug":"ohio-oil-company","state":"IL","county":"Cumberland","totalWells":110,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":4,"firstPermitDate":"1970-01-01","lastPermitDate":"2016-08-16"}