Document:

Exhibit 10.1

March 7, 2006                                                VIA OVERNIGHT

Mr. Donald Shassian
42 Woodland Drive
Rye Brook, N.Y. 10573

Dear Don:

On  behalf  of the  Senior  Leadership  Team,  I am  thrilled  to  confirm  your
acceptance of our offer to join the Company as the Chief Financial Officer (CFO)
for Citizens Communications. The work location for this position is in Stamford,
Connecticut  and we will  agree on a start date for your  employment  as soon as
possible.

Your  total  compensation  is based  upon  three  components:  a base  salary of
$425,000,  an annual  incentive  target of 100% of base  salary  (which  will be
pro-rated  for  2006  based  on  your  start  date)  and   long-term   incentive
compensation  in the form of an annual award of  restricted  shares of an amount
determined  each year by the  Compensation  Committee of the Board of Directors.
The base salary is paid on a semi-monthly  basis. The incentive  compensation is
earned based upon achieving the goals of the Citizens  Incentive Plan,  which is
paid on an annual basis,  generally near the end of the first quarter  following
the completion and certification of the operating year-end. You will be eligible
for the long-term incentive compensation determined in the first quarter of 2007
and each year thereafter.

In  addition,  you will  receive a sign-on  grant of  50,000  restricted  shares
(subject to approval by the  Compensation  Committee of the Board of  Directors)
that will vest over a four-year period (25/25/25/25%).

You will also receive two sign-on bonuses. The first is $25,000, less applicable
taxes, which will be paid after 30 days of employment.  The second sign-on bonus
in the amount of $50,000,  less  applicable  taxes,  will be paid one year after
your start  date.  In order to receive  the second  sign-on  bonus,  you must be
actively employed on that date and in good standing.

As the CFO, you will be covered by an Enhanced Severance Benefit in the event of
a change in control of the company.  The Enhanced Severance Benefit includes two
year's  salary and bonus target in the event that your  position is  eliminated,
your  responsibilities  materially  change,  or  your  title,  base  pay or cash
incentive  target  changes  for any  reason  other  than  cause  during a period
commencing on the effective  date of a change in control and ending on the first
anniversary  of the date on which a change of control  takes place,  should that
occur.
<PAGE>

Mr. Donald Shassian
March 7, 2006
Page 2

This offer is contingent upon the Company's  receipt of acceptable  results of a
standard background check, which has three components:  a criminal record check,
drug screening and verification of education, employment and credit.

You've already received our New Hire Kit, Background Check Authorization  forms,
a drug  testing  form (bring this with you to the drug  testing  facility),  the
Citizens Employee Handbook,  our Code of Conduct, and key benefits  information.
Please be advised that your health and welfare  benefits will begin on your 30th
day of employment.  As a Citizens Communications  employee, you will be eligible
to participate in our full range of benefits.

Don, I am personally  excited about the  opportunity to work with you. On behalf
of Citizens Communications,  I look forward to the benefits that your leadership
will  bring to our  business.  Please do not  hesitate  to  contact  me with any
questions regarding this offer.

To  acknowledge  your  acceptance of this offer,  please sign the bottom of this
offer letter and fax it to me directly at 203-614-4627.  Also, please return the
original  signed  offer  letter,  along with all other  required  forms,  in the
enclosed UPS envelope.

Sincerely,

/s/ Cecilia K. McKenney
------------------------
Cecilia K. McKenney
Sr. Vice President
Human Resources

By signing below, I hereby accept Citizens  Communications  Company's contingent
offer of employment.  I understand that I will not have a contract of employment
with  Citizens for a specified  period of time. I further  agree to abide by the
employment policies and procedures established by Citizens.

/s/ Donald R. Shassian                                3/8/06
------------------------------------------------------------------
Signature (please include middle initial)              DateEmployment Agreement between MDU Resources and John Castleberry

    

      

      February
        16, 2006

      

      

      Mr.
        John
        K. Castleberry

      240
        110th
        Avenue
        NW

      Bismarck,
        ND 58503

      

      Dear
        John:

      

      This
        letter sets forth MDU Resources Group, Inc.’s offer letter relating to the
        position of Executive Vice President-Administration. Your drive, knowledge
        of
        the Company and operating experience make you an outstanding candidate. I
        believe you can make a tremendous impact on our future success. 

      

      Title: Executive
        Vice President (EVP) - Administration, leading our Shared Services, Purchasing,
        Corporate Communications and Government Affairs functions. You will continue
        to
        be a member of our Management Policy Committee and report to me. 

      

      Effective
        Date:
        March
        4, 2006.

      

      Salary
        Class:
        Salary
        Class is “I”, which has a market value of $310,000.

      

      Base
        Salary:
        $300,000 per year, effective March 4, 2006, and reviewed annually by the
        Compensation Committee along with other officers’ salaries for the possibility
        of adjustment.

      

      2006
        Executive Incentive Compensation Plan (EICP):
        Target
        award of 50% of base salary. Your EICP will be structured so that awards
        will be
        tied to MDU Resources Group, Inc.’s performance on EPS and ROIC. For 2006, we
        will pro-rate the EICP to reflect two months (January and February) of
        service as the CEO of WBI Holdings, Inc. under your current bonus structure
        and
        10 months of service as EVP-Administration with a base salary of $300,000
        per
        year and an EICP target of 50% of base. The 2006 EICP Plans will be provided
        to
        you.

      

      One-time
        Performance Bonus:
        I will
        establish (with your input) performance measures relating to financial
        improvements and/or efficiency gains in the functions you will be managing.
        Payment will range from $0 to $250,000, depending on actual results vs. the
        performance measures. Please note that any Supplemental Bonus payments to
        you
        are subject to Compensation Committee approval. 

      

      2006
        Executive Long-Term Incentive Plan Performance Shares:
        Target
        award of 75% of base salary. The February, 2006 Performance Share grant by
        the
        Compensation Committee will be based on 75% of $300,000.

      

      Stock
        Ownership:
        As a
        senior member of management, your ownership of MDU stock should reflect the
        levels set forth in the MDU Resources Group, Inc. Stock Ownership Guideline.
        However, please be mindful of the short-swing profit provisions of
        Section 16 before purchasing additional Shares.

      

      As
        with
        all officers, the Compensation Committee of the Board of Directors may, from
        time to time, modify the components of our compensation program (e.g., base
        salary, EICP, Performance Shares, etc.). Any such modification(s) will apply
        to
        you and your participation in the program(s).

      

      Pension
        Benefits:
        Pension
        benefits are provided according to the terms of the pension plan. As previously
        communicated to you, your pension benefits upon a potential March 3, 2006
        separation would be as follows:

      

      Age:
        51
        Years, 5 Months

      March
        3, 2006

      
        	 	 	 	 	
                Estimated
                  Pension Amount

              	 	
                Estimated
                  SISP Excess Amount

              	 
	
                LUMP
                  SUM PAYMENT:

              	 	 	 	
                 

                $676,936.06

              	 	
                 

                $222,037.28

              	 
	 	 	 	 	 	 	 	 
	
                IMMEDIATE
                  ANNUITY:

              	 	 	 	
                Estimated
                  Monthly Pension Amount

              	 	
                Estimated
                  SISP Excess Amount

              	 
	
                Qualified
                  Joint & Survivor (Q J & S)

              	 	 	 	
                $3,041.53

              	 	
                 

                $1,917.30

              	 
	 	 	 	 	 	 	 	 
	
                DEFERRED
                  MONTHLY PENSION:

              	 	 	 	 	 	 
	 	 	 	 	 	 	 	 
	
                Age
                  55 Benefit 

                 

                Forms
                  of Payment:

              	 	
                Actuarial
                  Factor

              	 	
                Estimated
                  Monthly Pension Amount

              	 	
                 

                Estimated
                  SISP 

                Excess
                  Amount

              	 
	
                Straight
                  Life

              	 	
                1.000

              	 	
                $4,406.58

              	 	
                $2,777.79

              	 
	
                Ten
                  Year Certain

              	 	
                0.973

              	 	
                $4,287.60

              	 	
                $2,702.79

              	 
	
                Q
                  J
                  & S

              	 	
                0.932

              	 	
                $4,106.93

              	 	
                $2,588.90

              	 
	
                Joint
                  & 2/3

              	 	
                0.927

              	 	
                $4,084.90

              	 	
                $2,575.01

              	 
	
                Joint
                  & 100%

              	 	
                0.863

              	 	
                $3,802.88

              	 	
                $2,397.23

              	 

      

      

      

      
        	
                Age
                  62 Benefit

              	 	
                Actuarial

              	 	
                Estimated
                  Monthly

              	 	
                 

                Estimated
                  SISP

              	 
	
                Forms
                  of Payment:

              	 	
                Factor

              	 	
                Pension
                  Amount

              	 	
                Excess
                  Amount

              	 
	
                Straight
                  Life

              	 	
                1.000

              	 	
                $5,577.95

              	 	
                $3,516.19

              	 
	
                Ten
                  Year Certain

              	 	
                0.943

              	 	
                $5,260.01

              	 	
                $3,315.76

              	 
	
                Q
                  J
                  & S

              	 	
                0.907

              	 	
                $5,059.20

              	 	
                $3,189.18

              	 
	
                Joint
                  & 2/3

              	 	
                0.901

              	 	
                $5,025.73

              	 	
                $3,168.09

              	 
	
                Joint
                  & 100%

              	 	
                0.820

              	 	
                $4,573.92

              	 	
                $2,883.27

              	 

      

      

      The
        above
        amounts were based on a number of factors (such as interest rates, IRS limits,
        etc.) in place at the time of an anticipated March 3, 2006 separation. We
        believe your future pension benefit will be higher given the extra years
        of
        credited service and the likelihood that your final average pay will exceed
        the
        IRS limits. However, certain events such as a significant change in interest
        rates or a significant change in mortality tables may cause your future
        pension
        benefit to be less. 

      

      Therefore,
        if your future pension benefit payment (limited to those distribution options
        available upon your separation) is less than the comparable distribution
        option
        amount as stated above, we will make a supplemental payment necessary to
        recognize the difference (the "Pension Shortfall"). Any such supplemental
        payment will be paid in a lump sum as soon as practicable after the date
        of your
        termination of employment (or the date 6 months thereafter if you are determined
        to be a "specified employee," as that term is used in Section 409A(a)(2)(B)
        of
        the Internal Revenue Code). Such lump sum payment will be equal to the then
        present value of the Pension Shortfall, determined in accordance with the
        methodology for calculating actuarially equivalent lump sum benefits under
        the
        pension plan, as in effect at the time of such payment. Any such supplemental
        payment will be paid from the general assets of the Company, not under the
        Pension Plan. 

      

      SISP
        Excess:
        If the
        actual monthly Q J & S SISP Excess payment you are eligible to receive upon
        termination of employment is less than $1,917.30, then the Company will provide
        a supplemental payment (the "SISP Excess Shortfall"). Any such supplemental
        payment will be paid in a lump sum as soon as practicable after the date
        of your
        termination of employment (or the date 6 months thereafter if you are determined
        to be a "specified employee," as that term is used in Section 409A(a)(2)(B)
        of
        the Internal Revenue Code). Such lump sum payment will be equal to the then
        present value of the SISP Excess Shortfall, assuming the SISP Excess Shortfall
        payments were made through August, 2019, and using the interest rate used
        for
        purposes of calculating actuarially equivalent lump sum benefits under the
        pension plan, as in effect at the time of such payment. Any such supplemental
        payment will be paid from the general assets of the Company, not under the
        SISP.

      

      Please
        note the following two points relating to the SISP Excess benefit:

      

      	1.  	
              The
                benefit is paid to you through August, 2019, which is the month
                immediately prior to your 65th
                birthday. If you separate employment at age 65 or later, you are
                not
                entitled to a SISP Excess benefit and will not be entitled to a
                supplemental SISP excess benefit under this
                agreement.

            

      

      	2.  	
              There
                is no lump-sum distribution option for the SISP Excess after 2006
                due to
                the American Jobs Creation Act of 2004.

            

      

      SISP
        Basic:
        You
        will remain at a Level 67, which carries an annual Survivors benefit of $468,600
        for 15 years, or an annual Retirement benefit of $234,300 for 15
        years.

      

      Other
        Benefits:
        Eligibility for the standard array of employee benefits offered to similarly
        situated MDU Resources Group, Inc. executives.

      

      As
        a
        final note, your employment as EVP-Administration is “at will”, which means the
        relationship can be terminated by you or the company at any time and for
        any
        reason; nothing in this letter should be construed as a guarantee of future
        employment.

      

      If
        these
        employment terms are acceptable, please sign and date below and return this
        letter to me. 

       

      Sincerely,

       

      /s/
        Terry D. Hildestad

      Terry
        D.
        Hildestad

      President
        and Chief Operating Officer

      

       

      I
        agree
        to the terms of Employment as
        described above:

      

      /s/
        John K. Castleberry

      John
        K.
        Castleberry

      

      Date:
        2-27-06

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