KEENE, N.D. (AP) — State officials are monitoring cleanup of a spill at an oil well in McKenzie County.

Samson Oil and Gas USA, Inc. on Thursday reported the spill of about 41,000 gallons of brine and 1,000 gallons of oil due to tank overflow at the site about 13 miles northwest of Keene.

The state Oil and Gas Division says all of the brine and oil was contained within on-site diking. A state inspector has visited the site.