Nobody in banking risks money. They buy commodities to offset another bet. It is like a bookie that bets on the Giants because to many of their clients bet on the Redskins, that way, either way, they get their fee. That is the basis of the derivative scheme. Goldman Sachs and JP Morgan don’t really care what oil does despite having money in it. Whether it goes up or down, they win. Wall Street is now run by mathematicians.
Same pricing system is used by refineries managers that actually need oil delivered every week.