Figure 7. Number of establishments (in thousands) by industry and state versus shale gas production (in trillion cubic feet [Tft³]) by state, 2007–16
State and year	O&G extraction (number of establishments)	Drilling O&G wells(number of establishments)	Support activities O&G (number of establishments)	O&G pipeline construction (number of establishments)	Pipeline transportation NG (number of establishments)	Shale gas production in Tft³(secondary axis)
Ohio
2007	182	93	163	86	40	0.0
2008	182	89	171	87	35	0.0
2009	190	87	174	86	40	0.0
2010	193	81	173	88	38	0.0
2011	201	82	186	98	36	0.0
2012	210	93	204	106	37	0.0
2013	225	95	238	135	38	0.1
2014	221	103	273	153	41	0.4
2015	209	111	308	166	43	1.0
2016	190	110	306	175	48	1.4
Pennsylvania
2007	180	60	102	59	121	0.0
2008	199	72	118	63	128	0.0
2009	218	94	165	68	128	0.1
2010	236	112	250	90	128	0.4
2011	248	122	334	116	128	1.1
2012	252	117	390	148	133	2.0
2013	266	114	425	156	137	3.1
2014	275	113	454	157	136	4.0
2015	279	108	463	155	128	4.6
2016	271	97	457	154	127	5.1
West Virginia
2007	230	48	167	48	76	0.0
2008	227	52	181	57	80	0.0
2009	235	53	197	61	85	0.0
2010	246	56	224	64	90	0.1
2011	247	53	239	75	92	0.2
2012	247	55	244	91	88	0.3
2013	245	56	257	93	88	0.5
2014	242	60	255	98	89	0.9
2015	243	64	258	103	90	1.2
2016	235	57	246	106	95	1.2
Notes: Cells with a value of 0 indicate actual data. NG = natural gas. O&G = oil and natural gas. Sources: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages; U.S. Energy Information Administration; Pennsylvania Department of Environmental Protection; West Virginia Department of Environmental Protection; and Ohio Department of Natural Resources.