Four Peaks Brewing Company: Oatmeal Stout

Official description from the brewery:
Our Oatmeal Stout is creamy, dark and chocolaty, but drinks more easily than you might expect. The roastiness of this English-style stout starts on the bitter side, but is tamed by an infusion of a nitrogen, which is also responsible for the cascading bubbles and velvety mouthfeel that make authentic stouts like this one so revered.