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.
Two energy company chief executive officers defended the oil potential of Ohio's Utica shale.
The comments came from Texas-based EnerVest CEO John Walker and Oklahoma-based Gulfport Energy Corp. CEO James Palm and appeared to contradict earlier comments by Cheasapeake Energy Corp. CEO Aubrey McClendon.
Walker and Palm spoke on Wednesday at a shale conference in Pittsburgh.
Walker said he believed the Utica shale under eastern Ohio will produce significant oil "once we get the right completion method," according to the Wheeling Intelligencer.
He acknowledged that his view is different from McClendon's.
McClendon told investors earlier this week that his Oklahoma-based company, the No. 1 player in the Utica shale, does not expect big poil returns but is satusfied with the natural gas and natural gas lkiquids like ethane, butane and propapne it is getting from its Ohio wells.