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Reston, Virginia: by U.S. Geological Survey Mexico Assessment Team, 2015
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Washington, DC: U.S. Energy Information Administration, 2015
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Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2014
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Washington: USGS, 2013
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Washington, D.C: Energy Information Administration, november 30, 2020
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Reston: U.S. Geological Survey, 2018
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Tulsa, OK: AAPG, october 23, 2018
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Reston, Va: U.S. Geological Survey, 2016