{"name":"Greylock Conventional Drilling Activity in Indiana County, Pennsylvania","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/greylock-conventional/pennsylvania/indiana-pa","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-09-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Greylock Conventional","operatorSlug":"greylock-conventional","state":"PA","county":"Indiana","totalWells":511,"producingWells":511,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":"Marcellus","rankInCounty":4,"firstPermitDate":"1901-01-01","lastPermitDate":"1987-01-21"}