Oil rig explosion in North Dakota kills worker
14 September 2012
On September 4 a worker for Denver-based Frontier Drilling at the rig site owned by Wichita, Kansas-based Slawson Exploration died of injuries suffered in an oil rig explosion near Stanley in western North Dakota.

Oil rig and camp in North Dakota
A Frontier spokesman said the worker was transferring drilling fluid out of a 400-barrel tank when the blast happened. He suffered burns on about 90% of his body. The spokesman said the incident is still under investigation.
The rich Bakken and Three Forks shale formations in Western North Dakota have attracted a number of exploration companies in recent years.