MDU Resources to Present at D.A. Davidson Engineering & Construction Conference

• Press Release
• Source: MDU Resources Group, Inc.
• On 9:59 am EDT, Tuesday September 8, 2009

BISMARCK, N.D.--(BUSINESS WIRE)--MDU Resources Group, Inc. (NYSE:MDU - News) will present at the D.A. Davidson Engineering & Construction Conference on Friday, Sept. 18. MDU Resources’ President and Chief Executive Officer Terry D. Hildestad and Executive Vice President, Treasurer and Chief Financial Officer Vernon A. Raile will present a strategic and financial overview.

Related Quotes

Symbol	Price	Change
MDU	22.00	-0.43

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The live audio webcast will begin at 7:45 a.m. PDT and can be accessed at www.mdu.com. A webcast replay will be available.

MDU Resources Group, Inc., a Fortune 500 company and 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, operating in three core lines of business: utility resources, energy and construction materials. MDU Resources includes electric and natural gas utilities, construction services, natural gas and oil production, natural gas pipelines and energy services, and construction materials and contracting. For more information about MDU Resources, see the company's Web site at www.mdu.com or contact the Investor Relations Department at investor@mduresources.com.

MDU Resources Group, Inc.
Phyllis A. Rittenbach, 701-530-1057
Director – Investor Relations