FIRST QUARTER 2009 FORM 10-Q

Company

MDU RESOURCES GROUP INC

Filed

May 6, 2009

Period of Report

March 31, 2009

Accession Number

0000067716-09-000068

A 10-Q is a quarterly financial report filed after each of the first three quarters of a fiscal year. It includes unaudited financial statements and management commentary. Learn more about 10-Q filings →