{"name":"Grayrock Energy Ii LLC Drilling Activity in Nolan County, Texas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/grayrock-energy-ii-llc/texas/nolan","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Grayrock Energy Ii LLC","operatorSlug":"grayrock-energy-ii-llc","state":"TX","county":"Nolan","totalWells":289,"producingWells":262,"permits24mo":0,"spuds24mo":0,"ducCount":8,"topFormation":null,"rankInCounty":2,"firstPermitDate":"1951-05-02","lastPermitDate":"2019-06-26"}