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.
Chesapeake CEO Aubrey McClendon is profiled by Rolling Stone in an online article posted this week.
He studied history at Duke University, wanted to be an accountant, was a landman seeking gas-oil leases in his early days, formed Chesapeake in 1989 and now directs America's second-lar4gest producer of natural gas.
He is the No. 1 driller in the United States and has a personal worth of $1.2 billion.
The article looks at Chesapeake's land-flipping efforts and how McClendon deals with debt.
His company is the No. 1 player in Ohio's Utica shale.
You can read the article here.