Two China-flagged supertankers that were sailing to Venezuela to pick up debt-paying crude cargoes amid the U.S. oil embargo on the OPEC country have made u-turn and are now heading back to Asia, LSEG shipping data showed on Monday.Following the U.S.<p><p>https://www.marinelink.com/news/supertankers-picking-venezuelan-oil-china-534304</p></p>