{"name":"Marathon Oil Company Drilling Activity in Mountrail County, North Dakota","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/marathon-oil-company/northdakota/mountrail","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Marathon Oil Company","operatorSlug":"marathon-oil-company","state":"ND","county":"Mountrail","totalWells":329,"producingWells":300,"permits24mo":0,"spuds24mo":0,"ducCount":14,"topFormation":"Bakken","rankInCounty":5,"firstPermitDate":"1978-12-18","lastPermitDate":"2023-12-15"}