MDU Resources Group Inc (MDU) Q1 2020 earnings call dated May 08, 2020 Corporate Participants: Jason L. Vollmer -- Vice President, Chief Financial Officer
MDU Resources Group Inc.
-(MDU)
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XNYS:MDU
MDU Resources Group Inc (MDU) Q1 2020 earnings call dated May 08, 2020 Corporate Participants: Jason L. Vollmer -- Vice President, Chief Financial Officer