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EX-31.B - MDU RESOURCES CERTIFICATION OF CHIEF FINANCIAL OFFICER - MDU RESOURCES GROUP INCa2016q1ex31b.htm
EX-32 - MDU RESOURCES CERTIFICATION OF CEO AND CFO - MDU RESOURCES GROUP INCa2016q1ex32.htm
EX-10.E - MDU RESOURCES SECTION 16 OFFICERS AND DIRECTORS - MDU RESOURCES GROUP INCa2016q1ex10e.htm
EX-95 - MDU RESOURCES MINE SAFETY DISCLOSURES - MDU RESOURCES GROUP INCa2016q1ex95.htm
EX-12 - MDU RESOURCES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES - MDU RESOURCES GROUP INCa2016q1ex12.htm
EX-10.B - MDU RESOURCES EXECUTIVE INCENTIVE COMPENSATION PLAN AMENDED 2-11-2016 - MDU RESOURCES GROUP INCa2016q1ex10b.htm
EX-31.A - MDU RESOURCES CERTIFICATION OF CHIEF EXECUTIVE OFFICER - MDU RESOURCES GROUP INCa2016q1ex31a.htm
EX-10.A - MDU RESOURCES SUPPLEMENTAL INCOME SECURITY PLAN 2-11-2016 - MDU RESOURCES GROUP INCa2016q1ex10a.htm
EX-10.D - MDU RESOURCES 401 K RETIREMENT PLAN AMENDMENT 3-10-2016 - MDU RESOURCES GROUP INCa2016q1ex10d.htm
10-Q - MDU RESOURCES FORM 10-Q 3-31-2016 - MDU RESOURCES GROUP INCa2016q1form10-q.htm

INSTRUMENT OF AMENDMENT TO THE
MDU RESOURCES GROUP, INC.
401(k) RETIREMENT PLAN


The MDU Resources Group, Inc. 401(k) Retirement Plan (as amended and restated March 1, 2011) (the “K-Plan”), is hereby further amended, as follows:


1.
Effective May 1, 2015, by replacing the table in Section D-2-2 Eligibility to Share in the Retirement Contribution of Supplement D-2, Provisions Relating to the Retirement Contribution Feature for Certain Participating Affiliates, in its entirety, with the following:

Participating Affiliate
Current Effective Date (Original Effective Date)
Retirement Contribution Amount - Percentage of Compensation
Cascade Natural Gas Corporation
(non-bargaining)
January 1, 2011
(July 2, 2007)
5%
Cascade Natural Gas Corporation
(Field Operations Bargaining Unit employees hired on or after 1/1/2007)
May 1, 2015
(July 2, 2007)
5%
Fidelity Exploration & Production Company2
January 1, 2006
(July 2, 2001)
5%
Great Plains Natural Gas Co.
January 1, 2003
5%
Intermountain Gas Company
January 1, 2011
(October 12, 2008)
5%
On Electric Group, Inc.
March 7, 2011
6%
Rocky Mountain Contractors, Inc.
(non-bargaining)
January 1, 2005
5%
WBI Energy Midstream, LLC1
July 1, 2012
(January 1, 2001)
5%

1The following participants of WBI Energy Midstream, LLC are excluded:, Grady Breipohl, Jon Forbes, Richard Guderjahn, Steven Haag, Raymond Harms, Wade Hasler, Douglas Henry, Pamela Lynn, Todd Mandeville, Marlin Mogan, and Dale Sudbrack due to participation in the appropriate pension plan replacement contribution.
2The following participants of Fidelity Exploration & Production Company are excluded: Harlan R. Jirges, Marvin E. Rygh, Judy A. Schmitt, and Dennis M. Zander due to participation in the appropriate pension plan replacement contribution.

Explanation: This amendment updates the Retirement Contribution percentage for Cascade Natural Gas Corporation (“CNG”) Field Operations Bargaining Unit employees hired on or after January 1, 2007, effective May 1, 2015, due to an agreement signed between CNG and Local 121-C of the International Chemical Worker’s Union Council/UFCW. This signed agreement was provided to Corporate HR on January 14, 2016.

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IN WITNESS WHEREOF, MDU Resources Group, Inc., as Sponsoring Employer of the K-Plan, has caused this amendment to be duly executed by a member of the MDU Resources Group, Inc. Employee Benefits Committee on this 22nd day of January, 2016.

                            
 
MDU RESOURCES GROUP, INC.
 
 
  EMPLOYEE BENEFITS COMMITTEE
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/s/ Doran N. Schwartz
 
By:
Doran N. Schwartz, Chairman
 


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