New York state Attorney General Eric Schneiderman, pictured during a speech last year, says Peabody Energy misled investors when it insisted it couldn't predict the impact of climate change regulation. Mike Groll/AP hide caption

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Austin Mitchell walks away from an oil derrick outside Williston, N.D., in July 2011. North Dakota is now the No. 2 producer of oil in the U.S. behind Texas. Gregory Bull/AP hide caption

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