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MDU RESOURCES GROUP INC

Form10-K

Report Period2021-12-31

Date Filed2022-02-23

Time Filed12:06:44

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Recognized Type Unidentified

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Exhibits

MDU RESOURCES 2021 FORM 10-K
MDU RESOURCES LONG-TERM PERFORMANCE INCENTIVE PLAN
MDU RESOURCES RESTRICTIVE STOCK UNIT AWARD AGREEMENT
MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 01-01-22
MDU RESOURCES SUBSIDIARIES OF MDU RESOURCES
MDU RESOURCES CONSENT OF INDEPENDENT ACCOUNTING FIRM
MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER
MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER
MDU RESOURCES CERTIFICATION OF CEO AND CFO
MDU RESOURCES MINE SAFETY DISCLOSURES
Filing on SEC Edgar