Exclusive: U.S. considers blacklisting more oil tankers for trading with Venezuela, sources say

LONDON/NEW YORK (Reuters) - The United States is considering imposing sanctions on at least 40 additional foreign oil tankers for trading with Venezuela, four shipping sources told Reuters on Friday.The sources said the potential sanctions on the various ships could be imposed imminently, although no decision had been taken yet. The vessels that could be targeted included 25 supertankers, which can each carry a maximum of 2 million barrels of oil, and 17 smaller vessels, the sources said.There..