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 wholly owned construction materials subsidiary, Knife River Corporation, effective Jan. 1, 2023. David C. Barney will remain Knife River’s chief executive officer. On Aug. 4, MDU Resources announced its intent to […] The post MDU Resources Names Brian Gray President of Knife River Corporation; David Barney Remains CEO appeared first on Knife River .