BHP Billiton is to invest $4bn a year to step up output from its US shale reserves and expects the business to generate $3bn of cash annually by the end of the decade, helping the world’s largest mining group by market capitalisation to justify expensive bets placed on the assets two years ago. (Read more… http://www.ft.com/intl/cms/s/0/5298ccb8-619e-11e3-b7f1-00144feabdc0.html#axzz2n6jQfmOb)

(English, Article, 2013)

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