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.
From the Associated Press:
Colorado Gov. John Hickenlooper says he is trying to be impartial on issues involving oil and gas production in Colorado.
In a lecture Thursday at the University of Colorado, the former geologist said he is constantly attacked for being in the pocket of oil and gas, which he said is not the case.
According to the Boulder Daily Camera), Hickenlooper said the science on the impact of fracking is far from settled and the focus should be on getting better facts.
Hydraulic fracturing, also known as fracking, is a gas drilling process that blasts chemical-laden water deep into the ground. Supporters say the process is safe, while opponents say the technique pollutes groundwater.