North Dakota health officials say a pipeline trenching operation near Alexander has caused a spill of about 300 barrels of oil.
Officials say the crude has been recovered and berms have been put in place to contain it in the event of rain.
The state's Department of Health says the trenching operation damaged a Belle Fourche Pipeline in McKenzie County and caused the spill. Officials say most of the oil was confined to the trench and no water sources were affected.
Members of the McKenzie County Emergency Management office and the health department have been at the scene.
Belle Fourche is a Wyoming-based company that transports crude oil in the Williston Basin in western North Dakota and the Powder River Basin in Wyoming.