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.
The Fiscal Times reports that U.S. shale gas and oil is disrupting the global energy market and Russia's economy.
David Francis writes: "Russia had the United States on its heels during the Bush administration. Now, Russia is concerned about how much the U.S. shale gas explosion will hit Russia’s energy industry, the single source of the country’s economic strength.
"In 2000, shale gas provided only one percent of U.S. natural gas production. By 2010 that number grew to 20 percent, and some analysts predict it will swell to 46 percent by 2035, according to Paul Stevens, an oil and energy expert, in his book The Shale Gas Revolution."
Read the whole thing here.