RAY, N.D. (AP) - North Dakota health officials say a natural gas flare at an oil pad has sprayed a mix of oil and brine into a tributary of the east fork of the Little Muddy River.
The North Dakota Department of Health says less than 42 gallons of the mix were sprayed into the river. The incident happened 10 miles northwest of Ray.
The site is owned by Continental Resources, Inc. A representative for the company did not immediately return a call from The Associated Press seeking comment on the incident.
Saltwater, or brine, is an unwanted byproduct of oil production. It's many times saltier than sea water and can easily kill vegetation.
Health Department inspectors are expected to visit the site to investigate the incident and determine a remediation plan.