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.
Halcon Resources drew criticism earlier this year for night-time noise and lights associated with a horizontal well being drilled near Lordstown in Trumbull County.
Now the company wants to add two new wells at the same Kibler pad.
The first well at that site was successful, the company says.
It has promised to add sound barriers and indirect lighting to minimize complaints from neighbors, the Warren Tribune Chronicle reports.