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:
President Barack Obama's nominee to be the nation's top energy regulator has withdrawn, saying he doesn't have enough support for confirmation.
Ron Binz, a former Colorado energy regulator, was opposed by at least half of the 22-member Senate Energy Committee, including all 10 Republicans and at least one Democrat.
Opponents said they considered Binz's views to be outside the mainstream and were troubled by his comment that natural gas may be a "dead end" fuel.
Republicans said they were concerned that Binz was not truthful when he assured them that he was not part of a coordinated effort by a green-energy group and a Washington lobbying firm to boost his nomination to head the Federal Energy Regulatory Commission.
Binz said he plans to return to Colorado. No replacement was announced.