The Ohio Department of Natural Resources has issued 457 permits to drill in the Utica shale through Nov. 24.
The new permits are two in Harrison County and three in Noble County, according to the Division of Oil and Gas Resources Management.
To date, 187 wells have been drilled, 45 of which are in production.
A total of 29 drilling rigs are working in Ohio, up one from the previous weekly state report.
Carroll County is No. 1 in Ohio with 159 permits.
Other totals are Columbiana, 66; Harrison, 58; Jefferson, 31; Guernsey, 24; Monroe, 20; Noble, 17; Mahoning, 15; Portage, 14; Stark, 13; Tuscarawas, 12; and Belmont, 11.
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.