{"name":"Tenneco Oil Company Drilling Activity in Custer County, Montana","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/tenneco-oil-company/montana/custer-mt","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-09-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Tenneco Oil Company","operatorSlug":"tenneco-oil-company","state":"MT","county":"Custer","totalWells":4,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":4,"topFormation":null,"rankInCounty":6,"firstPermitDate":"1966-07-05","lastPermitDate":"1967-06-14"}