{"name":"McFadden Oil Company Drilling Activity in Allen County, Kansas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/mcfadden-oil-company/kansas/allen-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":"McFadden Oil Company","operatorSlug":"mcfadden-oil-company","state":"KS","county":"Allen","totalWells":571,"producingWells":297,"permits24mo":5,"spuds24mo":10,"ducCount":76,"topFormation":"Excello-Mulky","rankInCounty":2,"firstPermitDate":"1960-09-23","lastPermitDate":"2025-11-10"}