KILLDEER, N.D. — State officials are forcing the closure of a waste-treating facility in the North Dakota oil patch that has a history of violations.

The Renewable Resources facility north of Killdeer took oil-contaminated waste and recycled it into usable materials. State officials say problems included unreported spills and storing more waste than allowed.

State Health Department Waste Management Director Scott Radig tells KXMA-TV ( ) that the company took care of some of the problems but not all of them. The state Industrial Commission last week declined to permit the plant under new state regulations.

Renewable Resources CEO Shawn Kluver thinks the violations were minor and says the company worked hard to meet the state’s conditions. He says he doesn’t understand the decision of regulators to force the facility to close.

Information from: KXMB-TV,