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<http://cts.businesswire.com/ct/CT?id=bwnews&amp;amp;amp;sty=20130402006432r1&amp;amp;amp;sid=40241&amp;amp;amp;distro=ftp>
<http://www.aol.com/article/2013/04/02/mdu-resources-announces-webcast-of-analyst-confere/20527259/?gen=1>