Chad Zamarian is the new president and chief operating officer of NiSource Midstream and Minerals Group.
He replaced Joseph A. Blount Jr., who had held that post since July 2011.
The company is a subsidairy of Indiana-based Nisource, the parent company of Columbia Gas.
It is involved in natural gas leasing and midstream deveiopment on the Ohio-Pennsylvania line with Texas-based Hilcorp. It intends to build pipelines and a gas-processing facility.
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.