In this March 29, 2013 photo, workers tend to a well head during a hydraulic fracturing operation at an Encana Oil & Gas (USA) Inc. gas well outside Rifle, in western Colorado. Technology created an energy revolution over the past decade, but Old Energy is winning. Oil companies big and small have used technology to find a bounty of oil and natural gas so large that worries about running out have melted away. (AP Photo/Brennan Linsley)

Associated Press
In this March 29, 2013 photo, workers tend to a well head during a hydraulic fracturing operation at an Encana Oil & Gas (USA) Inc. gas well outside Rifle, in western Colorado. Technology created an energy revolution over the past decade, but Old Energy is winning. Oil companies big and small have used technology to find a bounty of oil and natural gas so large that worries about running out have melted away. (AP Photo/Brennan Linsley)
In this March 29, 2013 photo, workers tend to a well head during a hydraulic fracturing operation at an Encana Oil & Gas (USA) Inc. gas well outside Rifle, in western Colorado. Technology created an energy revolution over the past decade, but Old Energy is winning. Oil companies big and small have used technology to find a bounty of oil and natural gas so large that worries about running out have melted away. (AP Photo/Brennan Linsley)
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