The regulars at this Rogers Park tavern love two sports. One, darts, is played right there in the bar. The Oasis has three dart boards and sponsors its own dart league. The other, hockey, is showing constantly on the TV sets hanging over the room. The bar shows its devotion to the Blackhawks by posting a huge schedule on one of the walls. It's a non-descript place--the metal door out front is battered, the bar and stools worn--but the beer is cheap and there's always a game to play or watch.