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.
Reuters reports that President Barack Obama is considering naming nuclear physicist Ernest Moniz, one of his science and energy advisers, as the next energy secretary, sources said.
Moniz, who was undersecretary at the Energy Department during the Clinton administration, is a familiar figure on Capitol Hill, where he has often talked to lawmakers about how abundant supplies of U.S. natural gas will gradually replace coal as a source of electricity.
Moniz is director of MIT's Energy Initiative, a research group that gets funding from industry heavyweights including BP, Chevron, and Saudi Aramco for academic work on projects aimed at reducing climate-changing greenhouse gases.