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  • 05/04/2015 - MDU Resources Group, Inc. (NYSE:MDU) and Calumet Specialty Products Partners, L.P. (NASDAQ:CLMT) today announced that the Dickinson, North Dakota-based Dakota Prairie refinery, the first greenfield fuels refinery built in the U.S. in nearly 40 years, has commenced operations. The facility has begun producing diesel fuel and is expected to begin sales of diesel as the plant ramps up during May.
  • 03/31/2015 - MDU Resources Group, Inc. (NYSE:MDU) will webcast its first quarter 2015 earnings conference call May 5 following the release of its results.