Oldham County--court House, County Auditor Helen Wyly Vega, TX 79092 Phone : (806) 267-2722 Business Category Government Offices-County Government Offices & Public Schools Oldham County Of--county Auditor 105 S Main Vega, TX 79092 Phone : (806) 267-2722 Oldham County Of--county Auditor Business Category Government Offices-County Public Finance Taxation & Monetary Policy Government Offices & Public Schools