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 few interesting numbers from Environment America's recent report, "Fracking by the Numbers: Key Impacts of Dirty Drilling at the State and National Level:"
Well permitted, drilled or fracked since 2005: 82,000 in United States.
Toxic wastewater produced in 2012: 280 billion gallons.
Water used since 2005: 250 billion gallons.
Chemical used since 2005: 2 billion gallons
Air pollution in one year: 450,000 tons.
Land directly damaged since 2005: 360,000 acres.
Texas is No. 1 for water use with 110 billion gallons since 2005. Pennsylvania is at 30 billion gallons, Arkansas and Colorado are both at 26 billion gallons. West Virginia is at 17 billion gallons. North Dakota is at 12 billion gallons. Ohio is at 1.4 billion gallons.
You can access the full report at XXXXXXXXXX.