A handout photo released by the Venezuelan Ministry of Popular Power for Communication and Information shows the Iranian-flagged oil tanker Fortune docked at the El Palito refinery after its arrival in Puerto Cabello, in the northern state of Carabobo, Venezuela, on May 25, 2020...

A senior source within the Iranian petroleum industry says the United States would be practically unable to block shipments of gasoline from Iran to Venezuela at a time the two countries need to cooperate to mitigate the impacts of American sanctions on their energy sectors...