In the opinion of Russian officials, the oil contamination crisis that disrupted flows from the world’s second-largest exporter of crude this spring is long over. But a closer look at a dozen tankers containing dirty Russian oil suggests that for the buyers, the debacle has a long way to run and will cost them hundreds of millions of dollars. Two months since buyers discovered Russia was shipping oil contaminated with organic chloride, which is designed to boost output but can destroy refining equipment, less than half of the tainted crude loaded on tankers have found end-users. More than 1 million tonnes worth around $500 million remains homeless, zigzagging between Europe and Asia. In China, buyers have refused to […]