Equine.com listing of horses for sale in Texas. With more than 979,000 horses, the Lone Star state of Texas is a leader in the U.S. equine industry. Amarillo is home to the American Quarter Horse Association and the National Cutting Horse Association is based in Fort Worth. English or Western, Equine.com has the most horses for sale in TX. Search for horses for sale from Lubbock to Austin, Dallas to Houston or San Angelo to San Antonio.