DEFINITIVE PROXY STATEMENT DATED 04-22-2008

Company

MDU RESOURCES GROUP INC

Filed

March 7, 2008

Period of Report

April 22, 2008

Accession Number

0000897101-08-000511

A DEF 14A is a proxy statement sent to shareholders before an annual meeting. It covers executive compensation, board elections, and shareholder votes. Learn more about DEF 14A filings →