{"name":"Delta Oil Drilling Activity in Otsego County, Michigan","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/delta-exploration-llc/michigan/otsego","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Delta Oil","operatorSlug":"delta-exploration-llc","state":"MI","county":"Otsego","totalWells":93,"producingWells":73,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":"Antrim","rankInCounty":1,"firstPermitDate":"1971-06-02","lastPermitDate":"2001-10-03"}