I have seen it in so many of my favourite ipas in the region. They use it in combination with wheat for a smoother texture and mouthfeel to balance out strong and hoppy beer. I just love it.
Great lakes brewing is probably my favourite of them all but acrolling up a week, here is another that has oats from Amsterdam brewing in Toronto.
Pretty common and i find so many of the ones i like have oats these days. Not much for the german purity law.
Well, I keep learning :))