/EINPresswire.com/ -- BISMARCK, ND--(Marketwired - March 31, 2016) - MDU Resources Group, Inc. (NYSE: MDU) will webcast its first quarter 2016 earnings conference call May 4 following the release of its results.

The webcast will begin at 10 a.m. EDT and can be accessed at www.mdu.com. Audio and webcast replays will be available. Audio will be available through May 18 at 855-859-2056, or 404-537-3406 for international callers, conference ID 77094219.

About MDU Resources

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, pipelines and midstream operations, construction materials and services and a diesel refinery. 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.

Contact:
Rick Matteson
Director of Investor Relations
701-530-1057

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