Garrison Brothers Balmorhea Texas Straight Bourbon Whiskey is named after an iconic West Texas park and is the latest release from the Garrison Brothers. Garrison Brothers Balmorhea Texas Straight Bourbon Whiskey is aged four years in a new American white oak barrel and then another year in a second new American white oak barrel. Simply put, Garrison Brothers Balmorhea Texas Straight Bourbon Whiskey is bourbon candy in a bottle.