SEC Info - Mdu Resources Group Inc - ‘10-K’ for 12/31/05

Mdu Resources Group Inc – ‘10-K’ for 12/31/05 – EX-23

On: Wednesday, 2/22/06, at 1:40pm ET · For: 12/31/05 · Accession #: 67716-6-58 · File #: 1-03480

Document/Exhibit Description Pages Size 1: 10-K Mdu Resources Group, Inc. 2005 10-K HTML 2.19M 2: EX-10.AE Mdu Resources 1997 Executive Long-Term Incentive HTML 92K Plan 3: EX-10.AF Mdu Resources Executive Incentive Compensation HTML 30K Plan 4: EX-10.AG Montana-Dakota Executive Incentive Compensation HTML 29K Plan 5: EX-10.AH Retirement Agreement for Warren L. Robinson HTML 41K 6: EX-10.AI Steven L. Bietz Change of Control Employment HTML 82K Agreement 7: EX-10.AJ Nicole A. Kivisto Change of Control Employement HTML 82K Agreement 8: EX-10.AK Doran N. Schwartz Change of Control Employement HTML 82K Agreement 9: EX-12 Mdu Resources Ratio of Earnings to Charges & HTML 53K Dividends 10: EX-21 Subsidiaries of Mdu Resources Group, Inc. HTML 33K 11: EX-23 Consent of Independent Registered Public HTML 11K Accounting Firm 12: EX-31.A CEO Certification to Section 302 HTML 15K 13: EX-31.B CFO Certification to Section 302 HTML 16K 14: EX-32 CEO & CFO Certification to Section 906 HTML 13K

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-06127 and No. 333-104150 on Form S-3, and No. 33-54486, No. 333-27879, No. 333-27877, No. 333-33186, No. 333-33184, No. 333-70622, No. 333-62900, No. 333-84844, No. 333-112035, No. 333-118622, and No. 333-114488 on Form S-8 of our reports dated February 22, 2006, relating to the consolidated financial statements and financial statement schedule of MDU Resources Group, Inc. and subsidiaries (the "Company") and management’s report on the effectiveness of internal controls over financial reporting (which report on the consolidated financial statements and financial statement schedule expresses an unqualified opinion and includes an explanatory paragraph related to the Company's change in method of accounting for asset retirement obligations, as described in Notes 1 and 8 to the consolidated financial statements) appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2005.

/s/ Deloitte & Touche LLP

Minneapolis, Minnesota

February 22, 2006

This ‘10-K’ Filing

Date

Other Filings

Filed on:

2/22/06

For Period End:

12/31/05

11-K, 5

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Mdu Resources Group Inc – ‘10-K’ for 12/31/05 – EX-23

On: Wednesday, 2/22/06, at 1:40pm ET · For: 12/31/05 · Accession #: 67716-6-58 · File #: 1-03480

Previous ‘10-K’: ‘10-K’ on 2/23/05 for 12/31/04 · Next: ‘10-K’ on 2/21/07 for 12/31/06 · Latest: ‘10-K’ on 2/22/24 for 12/31/23

Annual Report — Form 10-K
Filing Table of Contents

EX-23 — Consent of Independent Registered Public Accounting Firm

This exhibit is an HTML Document rendered as filed. [ Alternative Formats ]

Dates Referenced Herein and Documents Incorporated by Reference

Mdu Resources Group Inc – ‘10-K’ for 12/31/05 – EX-23

On: Wednesday, 2/22/06, at 1:40pm ET · For: 12/31/05 · Accession #: 67716-6-58 · File #: 1-03480

Previous ‘10-K’: ‘10-K’ on 2/23/05 for 12/31/04 · Next: ‘10-K’ on 2/21/07 for 12/31/06 · Latest: ‘10-K’ on 2/22/24 for 12/31/23

Annual Report — Form 10-KFiling Table of Contents

EX-23 — Consent of Independent Registered Public Accounting Firm

This exhibit is an HTML Document rendered as filed. [ Alternative Formats ]

Dates Referenced Herein and Documents Incorporated by Reference

Annual Report — Form 10-K
Filing Table of Contents