111 | Add to Reading ListSource URL: www.shalenetwork.orgLanguage: English - Date: 2013-05-15 15:10:16
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112 | Add to Reading ListSource URL: www.eia.govLanguage: English - Date: 2009-11-05 13:22:12
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113 | Add to Reading ListSource URL: www.msha.govLanguage: English - Date: 2014-07-24 09:55:49
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114 | Add to Reading ListSource URL: www.eia.govLanguage: English - Date: 2009-10-27 08:32:29
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115 | Add to Reading ListSource URL: www.potomacriver.orgLanguage: English - Date: 2013-07-19 15:32:17
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116 | Add to Reading ListSource URL: wvwgc.wvca.usLanguage: English - Date: 2012-01-03 11:17:00
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117 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2013-09-06 12:11:56
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118 | Add to Reading ListSource URL: www.cmfassociates.comLanguage: English - Date: 2013-10-15 15:09:47
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119 | Add to Reading ListSource URL: 205.254.135.7Language: English - Date: 2013-12-11 11:40:15
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120 | Add to Reading ListSource URL: www.eia.govLanguage: English - Date: 2013-04-02 08:25:07
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