CNNMoney | Wall Street firms that bankrolled oil boom are hurting CNNMoney Cheap oil is creating headaches for the Wall Street firms that bankrolled America's oil boom. That's because the crash in oil prices is putting energy companies under financial stress. Oil revenue has dried up, yet these companies are still saddled ... Wall Street Setting Aside More Cash to Cover Weakening Oil Loans DIMON: JPMorgan is prepared for $30 oil |