{"name":"D90 Energy Drilling Activity in Sheridan County, Montana","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/d90-energy-llc/montana/sheridan-mt","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"D90 Energy","operatorSlug":"d90-energy-llc","state":"MT","county":"Sheridan","totalWells":145,"producingWells":119,"permits24mo":0,"spuds24mo":0,"ducCount":26,"topFormation":"Bakken","rankInCounty":1,"firstPermitDate":"1962-01-26","lastPermitDate":"2012-10-18"}