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Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-11-000099
Filing Date
2011-11-04
Accepted
2011-11-04 09:25:48
Documents
13
Period of Report
2011-09-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. 3RD QUARTER 2011 FORM 10-Q mduform10-q.htm 10-Q 2341227
2 MDUR 401(K) REITREMENT PLAN, AS RESTATED 3/1/11 exhibit10a.htm EX-10.A 1062851
3 INSTRUMENT OF AMENDMENT TO THE MDUR 401(K) RETIREMENT PLAN, 9/9/11 exhibit10b.htm EX-10.B 47379
4 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND COMBINED FIXED CHARGES AND exhibit12.htm EX-12 46315
5 CERTIFICATION OF CEO - SEC 302 SOX ACT 2002 exhibit31a.htm EX-31.A 12292
6 CERTIFICATION OF CFO - SEC 302 SOX ACT 2002 exhibit31b.htm EX-31.B 13563
7 CERTIFICATION OF CEO AND CFO - 18 USC SEC 1350 - SEC 906 SOX ACT 2002 exhibit32.htm EX-32 7799
  Complete submission text file 0000067716-11-000099.txt   11875979

Data Files

Seq Description Document Type Size
8 INSTANCE DOCUMENT mdu-20110930.xml EX-101.INS 1859951
9 SCHEMA DOCUMENT mdu-20110930.xsd EX-101.SCH 63574
10 CALCULATION LINKBASE DOCUMENT mdu-20110930_cal.xml EX-101.CAL 93522
11 LABEL LINKBASE DOCUMENT mdu-20110930_lab.xml EX-101.LAB 717305
12 PRESENTATION LINKBASE DOCUMENT mdu-20110930_pre.xml EX-101.PRE 335942
13 DEFINITION LINKBASE DOCUMENT mdu-20110930_def.xml EX-101.DEF 560192
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)

IRS No.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-03480 | Film No.: 111179530
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)