{"name":"Exxon Mobil Drilling Activity in Starr County, Texas","publisher":"Buckhead Energy","url":"https://www.buckheadenergy.com/operators/exxon-mobil-corporation/texas/starr","license":"https://creativecommons.org/licenses/by/4.0/","dataAsOf":"2026-07-04","source":"Public state oil & gas well-header records (permits, spuds, completions).","operator":"Exxon Mobil","operatorSlug":"exxon-mobil-corporation","state":"TX","county":"Starr","totalWells":307,"producingWells":90,"permits24mo":0,"spuds24mo":0,"ducCount":138,"topFormation":"Vicksburg","rankInCounty":2,"firstPermitDate":"1937-07-31","lastPermitDate":"2007-11-09"}