MOSCOW (Reuters) – Poland, Germany and Slovakia have suspended imports of Russian oil via a major pipeline, citing poor quality and triggering a rare crisis over supply from the world’s second-largest crude exporter. Halting imports from the Druzhba pipeline could trigger legal claims by Western buyers against Russian suppliers, who would in turn seek compensation from Russian pipeline monopoly Transneft, three traders with Western buyers said. The suspension cuts off a major supply route for Polish refineries owned by Poland’s PKN Orlen and Grupa Lotos, as well as plants in Germany owned by Total, Shell, Eni and Rosneft. The quality problem arose last week when an unknown Russian producer contaminated oil with high levels of organic chloride, which is used to boost oil output but must be separated before shipment as it can destroy refining equipment. Halting supplies of tainted oil, which can corrode refining units, has pushed some […]