Last Christmas, the tanker Yug cruised out of the Chinese port of Qingdao after offloading 2 million barrels of sanctioned Iranian oil. Near the Arctic, a vessel carrying Russian crude churned through icy seas, bound for India. Six thousand…

Last Christmas, the tanker Yug cruised out of the Chinese port of Qingdao after offloading 2 million barrels of sanctioned Iranian oil. Near the Arctic, a vessel carrying Russian crude churned through icy seas, bound for India. Six thousand…