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Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000067716-12-000088
Filing Date
2012-11-07
Accepted
2012-11-07 09:19:37
Documents
17
Period of Report
2012-09-30

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. 3RD QUARTER 2012 FORM 10-Q mduform10-q9302012.htm 10-Q 1583274
2 COMPANY BYLAWS, 8/16/12 exhibit3.htm EX-3 156861
3 FIRST AMENDMENT TO CREDIT AGREEMENT, 10/4/12 exhibit4.htm EX-4 144476
4 INSTRUMENT OF AMENDMENT TO THE MDUR 401(K) RETIREMENT PLAN, DATED 8/29/12 exhibit10a.htm EX-10.A 23552
5 INSTRUMENT OF AMENDMENT TO THE MDUR 401(K) RETIREMENT PLAN, DATED 8/29/12 exhibit10b.htm EX-10.B 22169
6 FORM OF AGREEMENT FOR TERMINATION OF CHANGE OF CONTROL EMPLOYMENT AGREEMENT, EFF exhibit10c.htm EX-10.C 7758
7 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND COMBINED FIXED CHARGES AND exhibit12.htm EX-12 36856
8 CERTIFICATION OF CEO - SEC 302 SOX ACT 2002 exhibit31a.htm EX-31.A 10472
9 CERTIFICATION OF CFO - SEC 302 SOX ACT 2002 exhibit31b.htm EX-31.B 9611
10 CERTIFICATION OF CEO AND CFO - 18 USC SEC 1350 - SEC 906 SOX ACT 2002 exhibit32.htm EX-32 7103
11 MINE SAFETY DISCLOSURES exhibit95.htm EX-95 123472
  Complete submission text file 0000067716-12-000088.txt   9887478

Data Files

Seq Description Document Type Size
12 XBRL INSTANCE DOCUMENT mdu-20120930.xml EX-101.INS 1699008
13 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT mdu-20120930.xsd EX-101.SCH 60276
14 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT mdu-20120930_cal.xml EX-101.CAL 88084
15 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT mdu-20120930_lab.xml EX-101.LAB 701455
16 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT mdu-20120930_pre.xml EX-101.PRE 337714
17 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT mdu-20120930_def.xml EX-101.DEF 248197
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.: 121185021
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)