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 Associated Press reported on Monday that the Ohio Ethics Commission has warned a member of the state's oil and gas commission that his consulting work with energy companies could present a conflict of interest.
The warning went to Robert Chase, a professor of petroleum engineering at Marietta College. He also operates a private consulting firm, Chaseland LLC, that deals with landowners and energy companies seeking to lease land.
His firm has dealt with some of the biggest players in Ohio's Utica shale: Chesapeake Energy, Anadarko, Marathon, Exxon and Chevron, according to information Chase submitted to the ethics panel.
The ethics commission said Ohio's ethics rules would block Chase from participating in any commission decision involving a group he negotiated with or a company that paid him for his services.
Chase told the Associated Press he saw nothing unexpected in the advisory. He sadi he was prepared to recuse himself if necessary.
The five-member Oil and Gas Commission hears appeals involving orders issued by state regulators
Its members are appointed by the governor.
Chase's term expires Dec. 31.