Shale oil 'adds 11% to world reserves'

Estimated global reserves of shale oil could increase total world crude resources by 11%, according to a US government report. The Energy Information Administration estimated there were some 345 billion barrels of "technically recoverable" shale oil reserves in 41 countries. via Pocket http://www.bbc.co.uk/news/business-22850607#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa