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.
A Jefferson County Common Pleas Court judge has allowed survey work to continue on a new pipeline.
Enterprise Liquids Pipeline of Houston had filed for an injunction to be allowed to enter a property near Bloomingdale.
The company is surveying for a liquid ethane pipeline that would run from eastern Ohio to Texas.It is eeking right of way on about 1,200 parcels in Ohio.
Ethane is a key component of polyethylene or plastic.