Stocks Hitting 52-Week Highs By: Benzinga via Benzinga May 31, 2016 at 10:15 AM EDT MDU Resources Group Inc (NYSE: MDU) shares rose 2.81 percent to reach a new 52-week high of $22.66. Argus Research upgraded MDU ... Read More >> Related Stocks: Big Lots Jazz Pharma Plc Mdu Res Group Inc