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.
Blogger Eric Fox paid attention to what energy companies were reporting in the last few weeks about second quarter 2012 earnings and company calls with analysts.
He offered his own brief summaries on Chesapeake Energy Corp, plus three other drillers active in Ohio's Utica shale.
Click here to find Fox's blog.
A note: The Akron Beacon Journal also paid attention to those reports/telephone calls and filed multiple stories on what the drillers are finding. That includes Chesapeake Energy, EV Energy Partners, Gulfport Energy and Devon Energy.