Ohio has approved 1,099 Utica shale permits, as of Feb. 22.
Of that total, 747 wells have been drilled and 384 are in production, the Ohio Department of Natural Resources reported.
A total of 40 rigs are working in Ohio.
A total of 14 new permits have been approved: one in Belmont County, two in Carroll County, two in Columbiana County, one in Guernsey County, seven in Harrison County and one in Monroe County.
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.