MDU Resources Group, a Bismarck, N.D.-based utilities company, is pledging to donate $10,000 to charities in Iowa, out of $500,000 the company is donating to coronavirus relief efforts. MDU Resources Group companies in Iowa include Jebro Inc. and Knife River Corp. Organizations receiving relief funds include the Food Bank of Sioux Land and Siouxland Soup Kitchen. Funding comes from the MDU Resources Foundation, which is supported by stockholders.