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.
Aubrey McClendon is eying Utica shale development in Carroll and Columbiana counties in eastern Ohio.
McClendon, ousted last spring as CEO of Cheaspeake Energy Corp., the nation's No. 2 natural gas producer, has new Utica plans.
His company, American Energy Partners, has teamed up with a Texas firm, Orange Energy Consultants, to form Great River Energy.
That firm is seeking leases in southern Columbiana County and also in Carroll County, the East Liverpool Review reported on Sunday.
A similar partnership surfaced last week in Harrison and Guernsey counties between McClendon's firms and Red Hill Development, based outside of Dover in Tuscarawas County.
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