/PRNewswire/ The Board of Directors of MDU Resources Group, Inc. (NYSE: MDU) today announced that Brian R. Gray has been named president of the company s.
/PRNewswire/ Knife River Corporation announced today it has acquired Baker Rock Resources and Oregon Mainline Paving, two premier construction materials.
Knife River Receives Permit for Texas Quarry Operations prnewswire.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from prnewswire.com Daily Mail and Mail on Sunday newspapers.