{"name":"Mai Oil Operations Drilling Activity in Ellis County, Kansas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/mai-oil-operations/kansas/ellis-ks","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Mai Oil Operations","operatorSlug":"mai-oil-operations","state":"KS","county":"Ellis","totalWells":220,"producingWells":181,"permits24mo":4,"spuds24mo":4,"ducCount":28,"topFormation":null,"rankInCounty":3,"firstPermitDate":"1957-08-20","lastPermitDate":"2026-07-09"}