{"name":"Atlantic Richfield Company Drilling Activity in Big Horn County, Montana","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/atlantic-richfield-company/montana/bighorn","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Atlantic Richfield Company","operatorSlug":"atlantic-richfield-company","state":"MT","county":"Big Horn","totalWells":9,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":4,"topFormation":null,"rankInCounty":2,"firstPermitDate":"1982-09-24","lastPermitDate":"1985-10-17"}