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.
Pennsylvania-based Rex Energy said on Tuesday that it has completed its first Utica well in Ohio.
The well in Carroll County will likely go into production in September.
The company said it would disclose production data from that well during its third quarter earnings conference call.
The well in Washington Township is 12,332 feet deep and has a lateral of 4,170 feet.
The company is developing other wells in Guernsey, Noble and Belmont counties.