The global energy industry may face challenges next year as the shale revolution continuous to spread across the globe, writes energy columnist Kevin Allison. An increase in shale drilling in countries such as the U.S. and China may create an oversupply of crude, which could drag oil prices down and make energy investments riskier, he writes. "Rapid technological change has a way of up-ending forecasts rooted in historical trends. In 2014 and beyond, energy market participants should expect the unexpected," Allison writes.
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