{"name":"Oasis Petroleum North America Drilling Activity in Roosevelt County, Montana","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/oasis-petroleum-north-america/montana/roosevelt","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Oasis Petroleum North America","operatorSlug":"oasis-petroleum-north-america","state":"MT","county":"Roosevelt","totalWells":123,"producingWells":85,"permits24mo":6,"spuds24mo":6,"ducCount":12,"topFormation":"Bakken","rankInCounty":1,"firstPermitDate":"1981-07-07","lastPermitDate":"2026-04-21"}