{"name":"Shell Oil Company Drilling Activity in Custer County, South Dakota","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/shell-oil-company/southdakota/custer","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-08-06","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Shell Oil Company","operatorSlug":"shell-oil-company","state":"SD","county":"Custer","totalWells":3,"producingWells":0,"permits24mo":0,"spuds24mo":0,"ducCount":3,"topFormation":null,"rankInCounty":4,"firstPermitDate":"1955-08-13","lastPermitDate":"1955-09-28"}