U.S. sanctions are dismantling what remains of Lukoil's Litasco, once Russia's biggest oil trader and a rival to top Swiss houses and oil majors, five sources told Reuters.The measures, which also target state-owned Rosneft, took effect on Friday…<p><p>https://www.marinelink.com/news/lukoil-trading-arm-falls-apart-us-532763</p></p>