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 Seeking Alpha blog on Tuesday:
Chesapeake Energy won't re-incorporate in Delaware after all, as the Oklahoma legislature reverses a law requiring staggered terms for board members.
Despite the law, activist shareholders managed to replace most of CHK's board last year; with the new board in place, CHK reversed its stance and said it would seek in re-incorporate in Delaware if the law wasn't overturned.