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.
Sherry Laboratories is opening a new natural gas analysis laboratory in Ohio's Guernsey County.
"Sherry Laboratories is excited to be involved in the Utica and Marcellus shale boom happening in Cambridge and eastern Ohio," said Ben James, president of Sherry Petrochemic al Services.
"We support major players in the petrochemical industry in other shale plays and we understand clients operating in this industry need accurate test results in a hurry. We are dedicated to meeting or even exceeding their needs and expectations," he said.
The new facility in Cambridge will be directed by Mike Perl.
Last October, the company opened a similar laboratory n Shreveport, La.
Sherry Laboratories is based in Daleville, Ind. It operates 11 testing laboratories across the country.
For details, go to the web site at www.sherrylabs.com.