It is too early to quantify the impact of the latest U.S. sanctions on Venezuela’s oil industry and exports, Fatih Birol, the Executive Director of the International Energy Agency (IEA), told Reuters on Wednesday. On Monday, the U.S. Treasury slapped another round of sweeping sanctions against Venezuelan state-owned oil firm PDVSA, in order to “help prevent further diverting of Venezuela’s assets by Maduro and preserve these assets for the people of Venezuela.” The U.S. backed last week Juan Guaidó, the chairman of…