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.
Oklahoma-based Chesapeake Energy Corp. is not happy with the Rolling Stone profile of CEO Aubrey McClendon and the energy giant.
The company, late Friday, issued its response to the article by Jeff Goodell.
"Although our expectations for honesty and fairness were quite low, the writer failed to reach even that low bar," the company said in its statement.
It added: "There is little new in this story and much that is either half true or just flat wrong."
Chesapeake goes on to dispute contentions in Goodell's article and it offer its own assessment.
Here is the company's full statement.