MDU Resources Declares Quarterly Dividends on Common and Preferred Stock

The MDU Resources Group (NYSE:MDU) board of directors today declared quarterly dividends on the company’s common and preferred stock.

The dividend for common stock is 18.25 cents per share, unchanged from the previous quarter. Dividends for preferred stock are:

• $1.12-1/2 per share on 4.50 percent Series Preferred
• $1.17-1/2 per share on 4.70 percent Series Preferred
• $1.27-1/2 per share on 5.10 percent Series Preferred

The dividends are payable April 1, 2015, to stockholders of record March 12, 2015.

MDU Resources Group, Inc., a member of the S&P MidCap 400 index, provides value-added natural resource products and related services that are essential to energy and transportation infrastructure, including regulated utilities and pipelines, construction materials and services, and exploration and production. For more information about MDU Resources, see the company’s website at www.mdu.com or contact the Investor Relations Department at investor@mduresources.com.