| Date | Event |
| 17-Nov-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Change in Directors or Principal Officers, Amendments to Articles of Inc. |
| 5-Nov-09 | MDU RESOURCES GROUP INC Files SEC form 10-Q, Quarterly Report |
| 30-Oct-09 | MDU Resources Earnings Call scheduled for 1:00 pm ET today |
| 30-Oct-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and E |
| 30-Oct-09 | Earnings announcement |
| 8-Sep-09 | Ex-Date for dividend payment of $0.155 |
| 17-Aug-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhib |
| 7-Aug-09 | MDU RESOURCES GROUP INC Files SEC form 10-Q, Quarterly Report |
| 3-Aug-09 | MDU Resources Earnings Call scheduled for 1:00 pm ET today |
| 3-Aug-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and E |
| 9-Jun-09 | Ex-Date for dividend payment of $0.155 |
| 6-May-09 | MDU RESOURCES GROUP INC Files SEC form 10-Q, Quarterly Report |
| 1-May-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and E |
| 16-Mar-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 6-Mar-09 | Price hit new 52-week low ($12.79) |
| 5-Mar-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Triggering Events That Accelerate or Increase a Direct Financial Obligati |
| 5-Mar-09 | Price hit new 52-week low ($13.17) |
| 2-Mar-09 | Price hit new 52-week low ($13.98) |
| 18-Feb-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhib |
| 13-Feb-09 | MDU RESOURCES GROUP INC Files SEC form 10-K, Annual Report |
| 3-Feb-09 | MDU RESOURCES GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and E |
| 19-Nov-08 | MDU RESOURCES GROUP INC Files SEC form 8-K, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Financia |
| 5-Nov-08 | MDU RESOURCES GROUP INC Files SEC form 10-Q, Quarterly Report |
| 31-Oct-08 | MDU RESOURCES GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and E |