{"name":"Horizontal Development & Production Drilling Activity in Jefferson County, Kansas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/horizontal-development-production/kansas/jefferson-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":"Horizontal Development & Production","operatorSlug":"horizontal-development-production","state":"KS","county":"Jefferson","totalWells":37,"producingWells":4,"permits24mo":0,"spuds24mo":0,"ducCount":31,"topFormation":null,"rankInCounty":6,"firstPermitDate":"1994-08-25","lastPermitDate":"1998-10-07"}