Open this photo in gallery:Fishermen pass an oil tanker in the Gulf of Venezuela off the shore of Punta Cardon on Jan. 14.Matias Delacroix/The Associated PressSave for laterU.S. companies will be allowed to do business with Venezuela’s state-owned oil and gas company after the Treasury Department eased sanctions, with some limitations, on Wednesday as the Trump administration looks for ways to boost world oil supplies during the Iran war.The Treasury issued a broad authorization allowing Petróleos de Venezuela S.A, or PDVSA, to directly sell Venezuelan oil to U.S. companies and on global markets, a massive shift after Washington for years…