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.
Federal policing of oil and natural gas drilling on public lands is lax and insistent, according to a report released Wednesday by House Democrats.
Only 6 percent of violations resulted in monetary fines over 13 years, the report says.
Fines over that time totaled less than $275,000, and federal regulators imposed n0 fines from February 1998 to February 2011 in Ohio and seven other drilling states.
The report says the government has done little to ensure accountability or to protect the environment, even as drilling has increased in recent years.
A total of 2,025 safety and drilling violations were filed against 335 companies with 64 companies paying fines of $273,875 in the 13 years.
The report looked at drilling activity on federal land in 17 states during two Democratic and one Republican administration.