From the Pittsburgh Tribune-Review:
An inexperienced natural gas worker loosening a bolt without proper supervision likely caused the leak that days later led to a fatal fire on a Chevron gas well in Greene County, Pennsylvania state investigators said.
In two Department of Environmental Protection reports released on Wednesday, officials pointed to human error by the unnamed employee of contractor Cameron International Corp. with less than six months of experience as the likely culprit.
The DEP criticized Chevron for a lack of oversight on the Lanco well pad in Dunkard before the Feb. 11 incident, and poor communication with state officials in the hours and days afterward.
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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.