Areas Served Areas Served TEXAS AmarilloArlingtonAustinCorpus ChristiDallasEl PasoFort WorthFriscoGarlandGrand PrairieHoustonIrvingLaredo LubbockMcKinneyOdessaPlanoSan AntonioSan MarcosWaco OKLAHOMAEdmondLawtonNormanOklahoma CityStillwaterTulsa