After first noting their Midwestern humility and "Be Polite" billboards (adorable, right?), HBO's "Last Week Tonight with John Oliver" spent more than 19 minutes -- nineteen! -- on Sunday night skewering our northwest neighbors.

Why? You guessed it -- oil. Watch the full video below. It's okay to poke a little fun at him for his pronounciation of "Bakken" and "lutefisk," too.

(Be advised: There is some salty language in the video.)