| Bourbon Barrel O.E. | Smog City Brewing Company | | |
| Bourbon Barrel Oil of Aphrodite | Jackie O's Pub & Brewery | American Stout | |
| Bourbon Barrel Okie Weekend | Prairie Artisan Ales | American Imperial Stout | 14.6% |
| Bourbon Barrel Old Dipsea Barleywine | Marin Brewing | American Barleywine | 10.0% |
| Bourbon Barrel Old Scrooge | Silver City Brewing Co. | Old Ale | 9.5% |
| Bourbon Barrel OPA (Oklahoma Pale Ale) | Choc Beer Company | American Pale Ale | 6.8% |
| Bourbon Barrel Oro Negro | Jackie O's Pub & Brewery | American Imperial Stout | 12.0% |
| Bourbon Barrel Oubliette | Seventh Son Brewing Co | American Imperial Stout | 11.5% |
| Bourbon Barrel Overwhelmingly Ridiculous Extra Outstanding (O.R.E.O.) Sleeping Forever | The Veil Brewing Company | American Imperial Stout | 14.0% |
| Bourbon Barrel Paw Paw Wheat | Jackie O's Pub & Brewery | American Dark Wheat Beer | 11.0% |
| Bourbon Barrel Peche | Almanac Beer Co. | Wild Ale | 7.3% |
| Bourbon Barrel Pinstripe | Blue Pants Brewery | American Imperial Stout | 8.0% |
| Bourbon Barrel Polar Eclipse | RoughTail Brewing Company | American Imperial Stout | |
| Bourbon Barrel Polygamy Porter | Wasatch Brewery | Imperial Porter | 9.5% |
| Bourbon Barrel Porter | Alewerks Brewing Company | American Porter | 9.0% |