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 Associated Press:
Officials in Parachute, Colo., say pumper trucks leaving their hoses in Parachute Creek probably are responsible for diesel-like organics found near the town's irrigation water.
According to the Grand Junction Daily Sentinel, the state Department of Natural Resources said Monday the latest tests show no contamination at any creek monitoring points associated with a hydrocarbons leak.
Energy workers discovered contaminated soil and groundwater about a month ago near the Williams gas processing facility in Parachute. Liquid hydrocarbons, including cancer-causing benzene, were discovered within 10 feet of Parachute Creek, which runs into the Colorado River.
Williams says a faulty pressure gauge leaked the fluids. The Colorado Oil and Gas Conservation Commission continues to investigate.