{"name":"Devon Energy Williston,LLC Drilling Activity in Mountrail County, North Dakota","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/devon-energy-willistonllc/northdakota/mountrail","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-09-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Devon Energy Williston,LLC","operatorSlug":"devon-energy-willistonllc","state":"ND","county":"Mountrail","totalWells":311,"producingWells":289,"permits24mo":15,"spuds24mo":3,"ducCount":10,"topFormation":"Bakken","rankInCounty":7,"firstPermitDate":"2007-11-16","lastPermitDate":"2025-07-29"}