Figure 1. Marcellus–Utica state-level shale gas production, 2007 through 2016 (in trillion cubic feet)
Year	Ohio	Pennsylvania	West Virginia
2007	0.000	0.001	0.000
2008	0.000	0.001	0.000
2009	0.000	0.065	0.011
2010	0.000	0.396	0.080
2011	0.000	1.068	0.192
2012	0.014	2.036	0.345
2013	0.101	3.076	0.498
2014	0.441	4.009	0.869
2015	0.959	4.597	1.163
2016	1.389	5.096	1.208
Sources: U.S. Energy Information Administration, Pennsylvania Department of Environmental Protection, West Virginia Department of Environmental Protection, and Ohio Department of Natural Resources.