# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-11-000073
Filing Date
2011-08-05
Accepted
2011-08-05 11:01:08
Documents
15
Period of Report
2011-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | MDU RESOURCES GROUP, INC. 2ND QUARTER 2011 FORM 10-Q | mduform10-q.htm | 10-Q | 2363431
2 | NON-EMPLOYEE DIRECTOR STOCK COMPENSATION PLAN 5/12/11 | exhibit10a.htm | EX-10.A | 38368
3 | DIRECTORS' COMPENSATION POLICY 5/12/11 | exhibit10b.htm | EX-10.B | 40467
4 | SECTION 16 OFFICERS AND DIRECTORS WITH INDEMNIFICATION AGREEMENTS CHART | exhibit10c.htm | EX-10.C | 33602
5 | INSTRUMENT OF AMENDMENT TO MDUR 401(K) RETIREMENT PLAN 6/30/11 | exhibit10d.htm | EX-10.D | 20934
6 | COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND COMBINED FIXED CHARGES AND | exhibit12.htm | EX-12 | 47318
7 | CERTIFICATION OF CEO - SEC 302 SOX ACT 2002 | exhibit31a.htm | EX-31.A | 12302
8 | CERTIFICATION OF CFO - SEC 302 SOX ACT 2002 | exhibit31b.htm | EX-31.B | 13573
9 | CERTIFICATION OF CEO AND CFO - 18 USC SEC 1350 - SEC 906 SOX ACT 2002 | exhibit32.htm | EX-32 | 7803
| Complete submission text file | 0000067716-11-000073.txt |  | 11089302

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
10 | INSTANCE DOCUMENT | mdu-20110630.xml | EX-101.INS | 1866443
11 | SCHEMA DOCUMENT | mdu-20110630.xsd | EX-101.SCH | 61699
12 | CALCULATION LINKBASE DOCUMENT | mdu-20110630_cal.xml | EX-101.CAL | 91330
13 | LABEL LINKBASE DOCUMENT | mdu-20110630_lab.xml | EX-101.LAB | 695493
14 | PRESENTATION LINKBASE DOCUMENT | mdu-20110630_pre.xml | EX-101.PRE | 329021
15 | DEFINITION LINKBASE DOCUMENT | mdu-20110630_def.xml | EX-101.DEF | 553032

Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1059
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 111012782
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)