Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000067716-10-000030
Filing Date
2010-02-17
Accepted
2010-02-17 09:44:36
Documents
29
Period of Report
2009-12-31

Document Format Files

Seq Description Document Type Size
1 MDU RESOURCES GROUP, INC. FORM 10-K FOR PERIOD ENDED 12/31/2009 mduform10-k2009.htm 10-K 5256133
2 COMPANY BYLAWS ex-3b.htm EX-3.B 189451
3 FIRST SUPPLEMENTAL INDENTURE 11/17/2009--THE BANK OF NEW YORK MELLON AS TRUSTEE ex-4c.htm EX-4.C 59815
4 CONSENT DATED 11/9/2009 UNDER CEHI CREDIT AGREEMENT, AMONG CEHI, US BANK NATIONA ex-4i.htm EX-4.I 76860
5 SUPPLEMENTAL INCOME SECURITY PLAN 11/12/2009 ex-10b.htm EX-10.B 324269
6 NON-EMPLOYEE DIRECTOR LONG-TERM INCENTIVE COMP PLAN 11/12/2009 ex-10f.htm EX-10.F 108207
7 1998 OPTION AWARD PROGRAM 11/12/2009 ex-10g.htm EX-10.G 72949
8 GROUP GENIUS INNOVATION PLAN 11/12/2009 ex-10h.htm EX-10.H 106376
9 WBIH EXEC INCENTIVE COMP PLAN AND RULES ex-10i.htm EX-10.I 127033
10 KRC EXEC INCENTIVE COMP PLAN AND RULES ex-10j.htm EX-10.J 130331
11 LONG-TERM PERFORMANCE-BASED INCENTIVE PLAN 11/12/2009 ex-10k.htm EX-10.K 140835
12 MDUR EXEC INCENTIVE COMP PLAN AND RULES ex-10l.htm EX-10.L 132102
13 MONTANA-DAKOTA EXEC INCENTIVE COMP PLAN AND RULES ex-10m.htm EX-10.M 134459
14 INSTRUMENT OF AMENDMENT TO MDUR 401(K) RETIREMENT PLAN 12/2/2009 ex-10w.htm EX-10.W 50105
15 INSTRUMENT OF AMENDMENT TO MDUR 401(K) RETIREMENT PLAN 12/30/2009 ex-10x.htm EX-10.X 18099
16 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND COMBINED FIXED CHARGES AND ex-12.htm EX-12 117294
17 SUBSIDIARIES OF MDU RESOURCES GROUP, INC. ex-21.htm EX-21 68494
18 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ex-23a.htm EX-23.A 4127
19 CONSENT OF RYDER SCOTT COMPANY, L.P. ex-23b.htm EX-23.B 4776
20 CERTIFICATION OF CEO - SEC 302 OF SOX ACT 2002 ex-31a.htm EX-31.A 16244
21 CERTIFICATION OF CFO - SEC 302 OF SOX ACT 2002 ex-31b.htm EX-31.B 15673
22 CERTIFICATION OF CEO AND CFO - 18 USC SEC 1350 - SEC 906 SOX ACT 2002 ex-32.htm EX-32 7789
23 RYDER SCOTT COMPANY, L.P. REPORT DATED 01/22/2010 ex-99.htm EX-99.B 125661
  Complete submission text file 0000067716-10-000030.txt   13677598

Data Files

Seq Description Document Type Size
24 INSTANCE DOCUMENT mdu-20091231.xml EX-101.INS 2581462
25 SCHEMA DOCUMENT mdu-20091231.xsd EX-101.SCH 21378
26 CALCULATION LINKBASE DOCUMENT mdu-20091231_cal.xml EX-101.CAL 61937
27 LABEL LINKBASE DOCUMENT mdu-20091231_lab.xml EX-101.LAB 253362
28 PRESENTATION LINKBASE DOCUMENT mdu-20091231_pre.xml EX-101.PRE 131108
29 DEFINITION LINKBASE DOCUMENT mdu-20091231_def.xml EX-101.DEF 15340
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58506-5650 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-K | Act: 34 | File No.: 001-03480 | Film No.: 10611366
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)