{"name":"Granholm & Assoc Drilling Activity in Montgomery County, Illinois","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/granholm-assoc/illinois/montgomery-il","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Granholm & Assoc","operatorSlug":"granholm-assoc","state":"IL","county":"Montgomery","totalWells":451,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":1,"firstPermitDate":"1970-01-01","lastPermitDate":"1996-12-06"}