Which explains why they came to the USA in the first place instead of going to the the University of Gunthersen?
Seriously, ever see their prisons? Better than college dorms or apartments here.
Now take away that oil revenue and the US protecting the softees that used to be Vikings a millenia ago from Russia, Germany, or even Sweden for that matter, and it's back to sacking monastaries for silver & gold and farms for women and cows.
Then again, the potential for expanding Artic Char and cloud berry markets is there so in 2068 when it all runs dry and Moslems outnumber Norwegians and Soumi 25:1 at least they got something to keep up the lifestyle.