What's moving the oil markets?

"Fresh overnight news from Nigeria spurred concerns about stability of crude supplies," one London-based broker said. "The militants threaten more attacks on the country's oil infrastructure and against oil workers." The militants said in a statement that they would carry out attacks on Shell and Chevron oil companies, though other companies, such as ExxonMobil, Total and Agip, are also at risk as the group vows to totally destroy the country's capacity to export oil.

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http://www.platts.com/Oil/Resources/Whats%20Moving%20the%20Market/