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"Natural gas for transportation refueler\u00A0Clean Energy Fuels\u00A0 has taken investors on a roller coaster during the past several years and, after a strong run from early May to the end of June, shares"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2014/07/11/why-is-clean-energy-fuels-down-10-in-july/20929697/>