{"name":"Casillas Petroleum Drilling Activity in Kearny County, Kansas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/casillas-petroleum/kansas/kearny","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Casillas Petroleum","operatorSlug":"casillas-petroleum","state":"KS","county":"Kearny","totalWells":99,"producingWells":98,"permits24mo":1,"spuds24mo":0,"ducCount":0,"topFormation":null,"rankInCounty":4,"firstPermitDate":"1990-02-23","lastPermitDate":"2026-07-01"}