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.
Columnist Mitchell Schruman of the Fort Worth Star-Telegram in Texas wrote an interesting column on how Cheaspeake Energy Corp. is trying to boost natural gas use inthe United States.
The company, the No. 1 player in Ohio's Utica shale, has pledged to invest $1 billion in the next decade to increase natural gas use in American transportation.
In a federal filing, the Oklahoma-based company said one of its key business strategies is to "transform the U.S. transporation fuels market."
The company has posted the column on its Web site.
You read the column here.