{"name":"Highmark Energy Operating Drilling Activity in Yazoo County, Mississippi","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/highmark-energy-operating-llc/mississippi/yazoo","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Highmark Energy Operating","operatorSlug":"highmark-energy-operating-llc","state":"MS","county":"Yazoo","totalWells":395,"producingWells":264,"permits24mo":320,"spuds24mo":0,"ducCount":131,"topFormation":null,"rankInCounty":1,"firstPermitDate":"1941-04-22","lastPermitDate":"2026-04-14"}