Four Roses OESQ Single Barrel Private Select ‘THE BARREL TAP'. Distilled with precision and aged for 11 years and 1 month, this special select bourbon, with a 58.2% ABV, is crafted from the OESQ recipe featuring a mashbill of 75% corn, 20% rye, and 5% malted barley. Matured in a freshly charred American white oak cask (Barrel 12-3f.