The "sweet spot" in the Utica shale is smaller than first thought.
It stretches from Carroll County in the north to Washington County in the south, but the best wells are being found in the southern counties, private geologist Larry Wickstrom told the Ohio Oil and Gas Association on Friday.
Companies are spending billions on midstream infrastructure to handle growing Utica production.
Click here to read the full story from John Funk of the Cleveland Plain Dealer.
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.