Officials say an out-of-control oil well in northwestern North Dakota has been plugged.
Williams County Emergency Manager Mike Hallesy says the well located near Tioga was under control on Tuesday.
Denver-based Emerald Oil Inc. reported to state regulators on Friday that the well was out of control. Officials say an unknown amount of oil, gas and other liquids was contained on site.
Officials say the well sprayed mist and emitted hydrogen sulfide from natural gas, prompting air-quality monitoring and road closures in the area.
Emerald Oil CEO McAndrew Rudisill says a break in a pipe near the surface likely caused the problem during hydraulic fracturing operations. He says the well was "killed" on Monday and has since been plugged.
He says fracking operations likely will resume later this week.