{"name":"Millennium Oil & Gas Drilling Activity in Niobrara County, Wyoming","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/millennium-oil-gas/wyoming/niobrara","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Millennium Oil & Gas","operatorSlug":"millennium-oil-gas","state":"WY","county":"Niobrara","totalWells":35,"producingWells":27,"permits24mo":0,"spuds24mo":0,"ducCount":8,"topFormation":"Niobrara- Mowry","rankInCounty":7,"firstPermitDate":"1925-07-17","lastPermitDate":"2012-05-30"}