The firing of U.S. National Security Advisor John Bolton is giving oil markets some supply comfort, with initial expectations that U.S. foreign policy toward Iran and Venezuela will be less hawkish. Brent crude oil prices fell more than 2% after President Donald J. Trump announced via Twitter that he’d fired Bolton, widely held as one of his more hawkish foreign policy voices. Oil production in Iran has dropped by 40% and in Venezuela by 48% since Bolton took office in April 2018. Trump withdrew from a nuclear agreement between Iran and world powers in the month following Bolton’s appointment. That decision squeezed ... (full story)