Driller at center of Oklahoma well blast has history of deadly accidents

HOUSTON (Reuters) - Patterson-UTI Energy, the contractor at the center of the deadliest U.S. drilling accident since the Deepwater Horizon rig explosion in 2010, has the second worst worker fatality rate among its peers, according to federal workplace safety data.

from Reuters: U.S. http://ift.tt/2DFnR4B