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:
Companies that drill for oil and natural gas — and their critics — will have 60 more days to comment on a new rule regulating hydraulic fracturing operations on public lands.
Interior Secretary Sally Jewell announced the extension Thursday after industry groups and environmentalists said they needed more time to digest a 171-page "fracking" rule issued last month.
The rule requires companies for the first time to disclose publicly the chemicals used in fracking operations. It also sets standards for proper construction of wells and disposal of wastewater.
Jewell called the rule a "common-sense update" that increases safety while also providing flexibility and improving coordination with states and Indian tribes. Drilling regulations were last changed in 1982.
Comments on the drilling proposal will be accepted through late August.