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.
Inquiring minds want to know:
Chesapeake Energy Corp. is one of the five founding partners in the Oklahoma City Thunder, the National Basketball Association team.
The energy giant was identified in a press release from the team issued last summer when Chesapeake acquired naming rights for the basketball team's arena.
The release identified Chesapeake as a founder of the NBA team, along with two other Oklahoma-based energy companies, a bank and the local newspaper.
Chesapeake last summer signed a 12-year deal to have the arena named the Chesapeake Energy Arena.
The price: $3 million a year and the price escalates by 3 percent per year.
Click here to read the team's press release.
The Thunder is playing the Miami Heat for the NBA title.