Brent crude hit $75 per barrel on Thursday for the first time in nearly six months after quality concerns suspended some Russian crude exports to Europe while the United States prepared to tighten sanctions on Iran.  Poland and Germany suspended imports of Russian crude via the Druzhba pipeline, citing contamination. The pipeline can ship up to 1 million barrels per day, or 1 percent of global crude demand, and about 700,000 bpd of flow was suspended, according to trading sources and Reuters calculations. Russia, the world’s second-largest crude exporter, said it planned to start pumping clean fuel to Europe through the pipeline on April 29. Brent crude futures were up 43 cents to $75.00 a barrel by 1:58 p.m. EDT (1758 GMT) after […]