The Atlantic cites a Hamilton Project graph showing the changes in mining, oil and gas employment between 2007-2011. Employment growth primarily occurred in states with shale gas reserves. States like North Dakota, Pennsylvania, and West Virginia, which saw some of the largest increases in proven reserves, have also had some of the most remarkable employment growth. For instance, employment in mining nearly tripled in North Dakota and increased 59 percent in Pennsylvania and 17 percent in West Virginia. Read the full Hamilton Project piece here.