LONDON — Western oil companies trying to find shale gas in Europe are discovering that Ukraine, eager to reduce its dependence on Russian energy imports, is one of their most willing partners. (For read more http://www.nytimes.com/2013/11/06/business/international/chevron-and-ukraine-sign-deal-on-shale-gas.html?ref=energy-environment&_r=0)
(English, Article, 2013)
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