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Oklahoma is now experiencing more seismic activity than earthquake-prone California. The FT's Barney Jopson reports on how some local people are pointing the finger of blame at oil and gas.
► FT Business: http://bit.ly/1KUK08s
► FT Global Economy: http://bit.ly/1J5mmqH
► A New Paradigm For Oil?: http://bit.ly/1FoKhLH
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