{"name":"Union Oil Company Of California Drilling Activity in Glacier County, Montana","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/union-oil-company-of-california/montana/glacier","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Union Oil Company Of California","operatorSlug":"union-oil-company-of-california","state":"MT","county":"Glacier","totalWells":131,"producingWells":17,"permits24mo":0,"spuds24mo":0,"ducCount":86,"topFormation":null,"rankInCounty":2,"firstPermitDate":"1935-12-01","lastPermitDate":"1993-05-18"}