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.
A naturally occuring "eternal flame" in New York state could change the world's assumptions about how much natural gas is available, says a research report published at the NASDAQ stock exchange website.
Wyatt Investment Research: "One eternal flame located just south of Buffalo, NY could change every assumption about energy in America.
"Tucked behind a small waterfall in a county park - at the northern edge of the Marcellus Shale, a naturally occurring eternal flame flickers in the town of Orchard Park, New York.
"... For investors, there is an important takeaway.
"There is likely to be much more natural gas throughout the world than previously thought. Not just a little bit more. But much, much more.
"We're talking orders of magnitude."
Read the whole thing here.