{"name":"Chizum Oil Drilling Activity in Sherman County, Kansas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/chizum-oil/kansas/sherman-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":"Chizum Oil","operatorSlug":"chizum-oil","state":"KS","county":"Sherman","totalWells":18,"producingWells":6,"permits24mo":2,"spuds24mo":1,"ducCount":10,"topFormation":"Niobrara East","rankInCounty":3,"firstPermitDate":"2017-06-06","lastPermitDate":"2026-04-16"}