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.
From the U.S. Energy Information Administartion today:
Nov 4, 2013
Increases in drilling efficiency have contributed to the breakdown of traditional methods that seek to estimate oil and natural gas production based principally on rig counts. The Drilling Productivity Report (DPR) analyzes drilling efficiency using the average number of wells a rig can drill over a period of time (left chart above) as well as a measure of how productive each new well is expected to be (right chart above).