Powell warns of new energy supply shock as gas prices surge: 'No one knows how big it will be' Federal Reserve Chair Jerome Powell warned of a new energy supply shock as oil tops $100 a barrel and gas prices surged over 34% in just one month. Original Source: https://www.foxbusiness.com/economy/powell-warns-new-energy-supply-shock-gas-prices-surge-no-one-knows-how-big-be