{"name":"Luff Exploration Company Drilling Activity in Harding County, South Dakota","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/luff-exploration-company/southdakota/harding","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-09-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Luff Exploration Company","operatorSlug":"luff-exploration-company","state":"SD","county":"Harding","totalWells":96,"producingWells":78,"permits24mo":0,"spuds24mo":0,"ducCount":17,"topFormation":"Judith River- Eagle","rankInCounty":2,"firstPermitDate":"1973-04-24","lastPermitDate":"2011-06-20"}