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.
Motor vehicles in the United States powered by natural gas could ease the energy crisis more so than electric cars, Scientific American says in a story: ":Geopolitical issues are driving up the cost of oil and eroding U.S. energy security and could trigger another recession, according to energy experts.
"But fuels derived from natural gas could help avoid a future oil crisis if they're poised to effectively compete in the oil-dominated transportation sector, members of the U.S. Energy Security Council said yesterday at a meeting of energy industry leaders."
Read the full story here.