"Saudi Arabia's Oil Minister Ali al-Naimi talks to journalists before a meeting of OPEC oil ministers in Vienna in this June 11, 2014 file photo. Saudi Arabia Oil Minister Ali al-Naimi broke months of silence on November 12, 2014 to reaffirm the kingdom's longstanding policy of seeking stable global markets, dismissing talk of a ""price war"" but offering no insight on his response to tumbling crude prices. Picture taken June 11, 2014. REUTERS/Heinz-Peter Bader/Files  (AUSTRIA - Tags: POLITICS ENERGY HEADSHOT)"
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