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 grass-roots group, Carroll Concerned Citizens, is holding a workshop Thursday on water testing for landowners.
The program on understanding water test results will be 7 p.m at the Church of Christ-Christian Disciples, 353 Moody St., Carrollton.
Landowners need to get their drinking water sampled by a laboratory approved by the Ohio Environmental Protection Agency before oil shale-related drilling on the property begins, said Mo Osman of Summit Environmental Technologies based in Summit County.
Companies are not required under Ohio law to do well testing. Some companies may test wells within a certain distance of the wells, but others could be at risk, said spokesman Paul Feezel.
Testing can cost $200 to $700.
Carroll County, southeast of Canton, is the No. 1 shale drilling area in Ohio.
For more information, contact Feezel at 330-627-7163 or firstname.lastname@example.org.