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:
MORGANTOWN, W.Va. — A West Virginia University researcher is examining potential sources of pollution that could result from natural gas drilling.
The Morgantown school says that assistant professor Shikha Sharma has received $265,000 from the National Science Foundation to support the Stable Isotope Research Laboratory.
Officials say the lab advances research and training in earth sciences with a primary focus on energy and environmental topics.
The grant will fund the purchase of new equipment to analyze compounds, including dissolved natural gases.
The research could help find areas where gas is likely to be more abundant and help identify sources of gas and pollutants entering groundwater and streams.