How big a player is Chesapeake Energy Corp. in Ohio's Utica shale?
The Oklahoma-based energy company has been aggressively drilling in eastern Ohio and has 1.3 million acres under lease.
It has 230 of the 267 wells permitted, drilled, in process or producing in Carroll, Harrison and Columbiana counties, according to the Salem News.
CEO Aubrey McClendon called those three counties Chesapeake's "core of the core in a conference call with investors earlier this month.
Of the 155 wells in Carroll County, 147 belong to Chesapeake. That's 95 percent.
Of the 58 wells in Columbiana, 57 belong to Chesapeake. That's 98 percent.
Of the 54 wells in Harrison, 26 belong to Chesapeake. that's 48 percent.
Those totals are through Nov. 10, based on Ohio Department of Natural Resources data.
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.