Ohio has approved 1,397 Utiuca shale permits, as of July 12.
The state has 953 drilled Utica wells, of which 476 are producing, says the Ohio Department of Natrual resources and its Division of Oil & Gas Resources Management.
There are 45 rigs working in Ohio.
The state has approved 13 new permits: three in Belmont County, four in Guernsey County, three in Harrison County, one in Jefferson County, one in Monroe County and one in Trumbull Counjty.
Chesapeake Energy Corp,the Oklahoma-based firm is the No. 1 driller in Ohio.
Rig Count Interactive Map by Baker Hughes, an energy services company.
Shale Sheet Fracking, a Youngstown Vindicator blog.
The Ohio Environmental Council, a statewide eco-group based in Columbus.
Earthjustice, a national eco-group.
People's Oil and Gas Collaborative-Ohio, a grass-roots group in Northeast Ohio.
Concerned Citizens of Medina County, a grass-roots group.
No Frack Ohio, a Columbus-based grass-roots group.
Fracking: Gas Drilling's Environmental Threat by ProPublica, an online journalism site.
Pipeline, blog from Pittsburgh Post-Gazette on Marcellus shale drilling.
Allegheny Front, environmental public radio for Western Pennsylvania.