A general view of the OPEC building and logo in Vienna , November 7, 2013. Organization of the Petroleum Exporting Countries could lose almost 8 percent of its oil market share in the next five years ... more 
A general view of the OPEC building and logo in Vienna , November 7, 2013. Organization of the Petroleum Exporting Countries could lose almost 8 percent of its oil market share in the next five years as the shale energy boom and other competing sources boost rival supply, offering the exporter group little benefit from rising world demand. REUTERS/Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS LOGO CITYSPACE) less 
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Reuters | Photo By LEONHARD FOEGER / REUTERS
Thu, Nov 7, 2013 10:17 AM EST