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.
More December news:
New York state is conducting hearings on whether it should proceed with hydraulic fracturing or fracking.
On Dec. 12, scientist-author-environmental health expert Sandra Steingraber testified before a New York Senate committee during hearings in Canandaigua.
Steingraber, now a scholar in residence at Ithaca College in Ithaca, N.Y., testifed that fracking essentially "turns the Earth inside out."
The fracking liquid is dangerous and a threat to human health and needs to carefully handled, she said during 14 minutes of her testimony.
Fracking, she said, could produce another "Love Canal on an epic scale," a reference to the infamous New York Superfund site.
New York state could drill as many as 62,000 wells and that would produce enough fracking liquid to equal the flow of water over Niagara Falls for 35 minutes. Much of that frackign waste could be headed to Ohio, she said.
There is some evidence that Ohio does not want to get the fracking liquid from New York like it is already getting fracking liquid from Pennsylvania, she said. Ohio has been injecting the waste into underground rock formations via about 200 injection wells.
Her testimony is widely circulating among anti-fracking activists across Ohio.