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 Corp. announced this week that it has completed drilling its first Utica shale well in Ohio's Carroll County.
It reported that the well was drilled to a depth of 12,332 feet with a lateral length of 4,170 feet.
The well is slated to be hydraulically fractured or fracked in June.
The rig has been moved to western Pennsylvania where it is scheduled to drill a Utica well in Lawrence County.
In related news, Rex Energy announced that its Bluestone cryogenic processing plant in Pennsylvania's Butler County has gone online and will begin selling natural gas by June 1.
The company also announced that it has closed on a previously announced deal to sell its subsidiary Keystone Midstream to MarkWest Energy for $512 million.