{"name":"Greylock Conventional Drilling Activity in Mercer County, West Virginia","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/greylock-conventional/westvirginia/mercer-wv","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":"WV","county":"Mercer","totalWells":13,"producingWells":13,"permits24mo":0,"spuds24mo":0,"ducCount":0,"topFormation":"Medina-Clinton-Tuscarora","rankInCounty":3,"firstPermitDate":"1977-03-11","lastPermitDate":"1981-07-08"}