Delaware
|
1-3480
|
41-0423660
|
(State or other jurisdiction of
incorporation)
|
(Commission File
Number)
|
(I.R.S. Employer
Identification No.)
|
|
q
|
Written communications pursuant
to Rule 425 under the Securities Act (17 CFR
230.425)
|
|
q
|
Soliciting material pursuant to
Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)
|
|
q
|
Pre-commencement communications
pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))
|
|
q
|
Pre-commencement communications
pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))
|
|
99
|
Press
release issued April 7, 2008, reporting positive initial results from its
Bakken wells.
|
|
MDU
RESOURCES GROUP, INC.
|
|
Date April 7,
2008
|
By
|
/s/ Doran N. Schwartz
|
Doran
N. Schwartz
Vice
President and Chief Accounting
Officer
|
Exhibit
Number
|
Description of
Exhibit
|
99
|