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.
Warren will host a two-day conference on shale drilling for activists and environmental groups.
The program, "Unconventional Shale Drilling: A Science/Technology, Health, Environmental, Economics and Policy Discussion: What We Know! What We Don't Know! What We Need to Know Before Moving Forward," will be held Friday, April 5, and Saturday, April 6.
The keynote speaker will be Deborah Rogers of the Energy Policy Forum.
The program is being sponsored by the FracTracker Alliance, the Buckeye Forest Council and the FreshWater Accountability Project Ohio.
It will be held at the Wean Foundation, 147 W. Market St., Warren.
Hours: 9 a.m. to 4 p.m. both days.
Advance registration is required. Admission is $50 a person per day (lunch is included).
For more information, call 1-888-287-6068 or firstname.lastname@example.org.