Amended and restated Form of Severance Agreement (Three-Year Term)



 Exhibit 10.2 
 UNITIL CORPORATION 
 SEVERANCE AGREEMENT 
 THIS AGREEMENT, dated this xx day of xxxxx, xxxx, made effective as of the date on which a Change in Control (as defined in paragraph 2) occurs, by and
among Unitil Corporation (“Unitil”), a New Hampshire corporation, Unitil Service Corp., a New Hampshire corporation and a wholly-owned subsidiary of Unitil (“Subsidiary”) (Unitil and Subsidiary are herein referred to collectively
as the “Company”) and xxxxxxxxx (the “Employee”). 
 W I T N E S S E T H  T H A T: 
 WHEREAS, the Employee is an employee of the Company and an integral part of its management who participates in the decision making process relative to
short and long-term planning and policy for the Company; and 
 WHEREAS, the Board of Directors of Unitil, determined that it would be in the
best interests of Unitil, its shareholders and the Employee to assure continuity in the management of the Company’s administration and operations in the event of a Change in Control by entering into an employment agreement to retain the
services of the Employee, and the Board of Directors of the Subsidiary made the same determination; and 
 WHEREAS, the Company and the
Employee previously entered into a severance agreement dated the xx day of xxxxxx, xxxx (the “Prior Agreement”) and the Company and the Employee desire to amend and restate the Prior Agreement; and 
 WHEREAS, the Company and the Employee agree that this Agreement shall amend and supersede the terms and conditions of the Prior Agreement. 
 NOW, THEREFORE, it is hereby agreed by and between the parties hereto as follows: 
 1. Employment. The Company agrees to continue the Employee in its employ and the Employee agrees to remain in the employ of the Company for the
period stated in paragraph 4 hereof and upon the terms and conditions herein provided. 







 2. Change in Control. The term “Change in Control” shall mean the occurrence of any of
the following: 
 (a) Unitil receives a report on Schedule 13D filed with the Securities and Exchange Commission pursuant to
Section 13(d) of the Securities Exchange Act of 1934, as amended (hereinafter referred to as the “Exchange Act”), disclosing that any person, group, corporation or other entity is the beneficial owner, directly or indirectly, of
twenty-five (25%) percent or more of the outstanding common stock of Unitil; 
 (b) any person (as such term is defined in
Section 13(d) of the Exchange Act), group, corporation or other entity other than Unitil or a wholly-owned subsidiary of Unitil, purchases shares pursuant to a tender offer or exchange offer to acquire any common stock of Unitil (or securities
convertible into common stock) for cash, securities or any other consideration, provided that after consummation of the offer, the person, group, corporation or other entity in question is the beneficial owner (as such term is defined in Rule 13d-3
under the Exchange Act), directly or indirectly, of twenty-five (25%) percent or more of the outstanding common stock of Unitil (calculated as provided in paragraph (d) of Rule 13d-3 under the Exchange Act in the case of rights to acquire
common stock); 
 (c) the stockholders of Unitil approve (i) any consolidation or merger of Unitil in which Unitil is not the continuing
or surviving corporation or pursuant to which shares of common stock of Unitil would be converted into cash, securities or other property (except where Unitil shareholders before such transaction will be the owners of more than seventy-five
(75%) percent of all classes of voting stock of the surviving entity), or (ii) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all or substantially all the assets of Unitil; or

  

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 (d) there shall have been a change in a majority of the members of the Board of Directors of Unitil
within a twenty-five (25) month period unless the election or nomination for election by the Unitil stockholders of each new director was approved by the vote of two-thirds of the directors then still in office who were in office at the
beginning of the twenty-five (25) month period. 
 Should the Change in Control be stockholder approval under paragraph 2(c) and if the
Board of Directors of Unitil determines the approved transaction will not be completed and is abandoned prior to any termination of the Employee’s employment, a Change in Control shall no longer be in effect and the provisions of this Agreement
shall continue in the effect as if a Change in Control had not occurred. 
 3. Position and Responsibilities. During the period of
employment hereunder, the Employee agrees to serve the Company in an executive capacity. Such service shall involve duties and responsibilities at least equal in importance and scope to those of the Employee’s position immediately prior to the
effective date of this Agreement, as the Board of Directors, the Chairman of the Board of Directors or chief executive officer or any other executive officer of the Company to whom the Employee reports may from time to time determine. During said
period, the Employee also agrees to serve, if elected, as an officer and/or director of any subsidiary or affiliate of the Company. 
 4.
Term and Duties. 
 (a) The period of the Employee’s employment under this Agreement shall be deemed to have commenced as of the
effective date of this Agreement and shall continue for a period of thirty-six (36) full calendar months thereafter. 
  

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 (b) During the period of employment hereunder and except for illness or incapacity and reasonable
vacation periods, the Employee’s business time, attention, skill and efforts shall be exclusively devoted to the business and affairs of the Company; provided, however, that nothing in this Agreement shall preclude the Employee from devoting
time during reasonable periods required for 
 (i) serving as a director or member of a committee of any company or organization involving no
conflict of interest with the Company or any of its subsidiaries or affiliates, 
 (ii) delivering lectures and fulfilling speaking
engagements, and 
 (iii) engaging in charitable and community activities, provided that such activities do not materially affect or
interfere with the performance of the Employee’s obligations to the Company. 
 5. Compensation. 
 (a) For all services rendered by the Employee in any capacity during employment under this Agreement, including services as an executive, officer,
director, or member of any committee of the Company or of any subsidiary or affiliate of the Company, the Company shall pay the Employee a fixed salary at an annual rate not less than the annual rate of salary being paid to Employee immediately
prior to the effective date of this Agreement. Such salary shall be subject to such periodic percentage increases after the effective date of this Agreement as the Company pays generally to the Company’s senior management employees from time to
time, and shall be payable in accordance with the customary payroll practices of the Company. Such periodic increases in salary, once granted, shall not be subject to revocation. 
  

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 (b) In addition to the salary payable under subsection (a), above, the Company shall provide to the
Employee a bonus opportunity not less than the bonus opportunity in effect for the year in which the effective date of this Agreement occurs and in any event shall pay to the Employee annual bonuses in an amount at least equal to the amount of the
last payment to the Employee under any short-term incentive performance program of the Company or any subsidiary of the Company in effect during the twelve (12) month period prior to the effective date of this Agreement. Nothing in this
subsection (b) shall be deemed to require the Company to (i) have or continue an incentive performance program in effect prior to the effective date of this Agreement or (ii) award to the Employee any bonuses under such program prior
to the effective date of this Agreement. 
 (c) Nothing in this Agreement shall preclude or affect any rights or benefits that may now or
hereafter be provided for the Employee or of which the Employee may be or become eligible under any bonus or other form of compensation or employee benefit plan now existing or that may hereafter be adopted or awarded by the Company. Specifically,
the Employee shall: 
 (i) participate in the Unitil Corporation Retirement Plan and any related excess benefit or supplemental retirement
program (hereinafter referred to collectively as the “Retirement Program”); 
 (ii) participate in any savings or thrift plan
maintained by the Company; 
 (iii) participate in any stock option, stock appreciation right, equity incentive or deferred compensation
plan maintained by the Company; 
 (iv) participate in the Company’s death benefit plans; 
 (v) participate in the Company’s disability benefit plans; 
  


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 (vi) participate in the Company’s medical, dental and health and welfare plans; and 
 (vii) participate in equivalent successor plans of the Company for which senior management employees are eligible; 
 provided, however, that nothing in this Agreement shall preclude the Company from amending or terminating any such plan or program, on the condition that such amendment
or termination is applicable to all of the Company’s senior management employees generally. For purposes of the foregoing, any plan or program maintained by any subsidiary of the Company which is made available to the senior management of the
Company and its subsidiaries taken as a whole, shall be deemed to be a plan or program maintained by the Company. 
 6. Business
Expenses. The Company shall pay or reimburse the Employee for all reasonable travel or other expenses incurred in connection with the performance of the Employee’s duties under this Agreement in accordance with such procedures as the
Company may from time to time establish. 
 7. Additional Benefits. Nothing in this Agreement shall affect the Employee’s
eligibility to participate in all group health, dental, hospitalization, life, travel or accident or other insurance plans or programs and all other perquisites, fringe benefit or retirement plans or additional compensation, including termination
pay programs, which the Company or any subsidiary of the Company may hereafter, in their sole and absolute discretion, elect to make available to the senior management employees of the Company generally, and the Employee shall be eligible to
receive, during the period of employment under this Agreement, all benefits and emoluments for which key employees are eligible under every such plan, program, perquisite or arrangement to the extent permissible under the general terms and
provisions thereof. 
  

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 8. Termination of Employment. Notwithstanding any other provision of this Agreement, the
Employee’s employment under this Agreement may be terminated for any of the following reasons: 
 (a) By the Company for Cause. For
purposes of this Agreement, the term “Cause” shall mean the occurrence of any of the following events: (i) the Employee’s conviction for the commission of a felony or (ii) the Employee’s fraud or dishonesty which has
resulted or is likely to result in material economic damage to the Company or any of its subsidiaries, as determined in good faith by the Directors of the Company at a meeting of the Board of Directors at which the Employee is provided an
opportunity to be heard; 
 (b) By the Employee for Good Reason. For purposes of this Agreement, the term “Good Reason” shall mean
the occurrence of any of the following events unless the Employee specifically agrees in writing that such event or condition shall not constitute Good Reason: (i) a material diminution in the Employee’s base compensation; (ii) a
material diminution in the Employee’s authority, duties or responsibilities; (iii) material diminution in the authority, duties, or responsibilities of the supervisor to whom the Employee is required to report, including, if the Employee
reports directly to the Board of Directors of Unitil, a requirement that the Employee report to a corporate officer or employee instead of reporting directly to the Board of Directors of Unitil; (iv) a material diminution in the budget over
which the Employee retains authority; (v) a material change in the geographic location at which the Employee must perform services, which the Company has determined to include a change in the Employee’s principal place of employment by the
Company from the location of the Company’s principal place of business immediately prior to the date this Agreement becomes effective to a location more than fifty (50) miles from such principal place of business; or (vi) any other
action or inaction that constitutes a material breach by the Company of the Agreement; 

  

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provided, however, no event specified in this paragraph 8(b) shall constitute Good Reason unless the Employee has given written notice to the Company,
specifying the event relied upon for such termination within ninety (90) days after the occurrence of such event and the Company has not remedied such within thirty (30) days of receipt of such notice; 
 (c) By the Company upon the Disability of the Employee. For purposes of this Agreement, the term “Disability” is defined as the inability of
the Employee to engage in his regular occupation for twelve (12) consecutive months and the inability thereafter to engage in any occupation in which the Employee could reasonable expect to engage giving due consideration to Employee’s
education, training and experience. The Employee must be under the regular medical care of a physician in connection with treatment for Disability; 
 (d) By the Employee without Good Reason; or 
 (e) By the Company for any reason other than Cause or the Employee’s Disability.

 For purposes of this Agreement, the Employee’s employment shall be deemed to have terminated automatically as of the date of the Employee’s
death. 
 9. Payments Upon Termination of Employment. 
 (a) In the event of any termination of the Employee’s employment hereunder (i) by the Employee for Good Reason or (ii) by the Company for any reason other than Cause or the Employee’s Disability,
then, as soon as practicable (but not more than sixty (60) days) after any such termination the Company shall pay to the Employee the following amounts, and shall provide the Employee and the dependents, beneficiaries and estate of the Employee
with the following, as liquidated damages or severance pay, or both: 
 (i) a lump sum cash payment equal to the present value of thirty-six
(36) monthly salary payments, assuming for this purpose that (1) each monthly salary payment 

  

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would have been equal to one-twelfth (1/12th)of the
Employee’s annual salary in effect at the time of employment termination (disregarding any reductions in annual salary that were not approved by the Employee) and (2) such monthly salary payments would have been made on each of the
twenty-four (24) monthly anniversaries of the date the Employee’s employment terminated; 
 (ii) a lump sum cash payment equal to
the present value of three (3) annual bonus payments, assuming for this purpose that (1) each such annual bonus payment would have been equal to the Employee’s target annual bonus for the year in which employment termination occurs
(disregarding any reductions in such target annual bonus that were made in the year of employment termination and that were not approved by the Employee) and (2) the first annual bonus would have been paid on the last business day of the first
February following the date of employment termination and the second annual bonus would have been paid on the last business day of the second February following the date of employment termination; 
 (iii) A lump sum cash amount equal to the present value of the excess of (1) the aggregate benefit that would have been paid under the Retirement
Program described in paragraph 5(c)(i), above, as in effect on the date of this Agreement, if the Employee had continued to be employed and to be entitled to service credit for eligibility and benefit purposes during the thirty-six (36) month
period immediately following such termination, over (2) the aggregate benefit actually payable under the Retirement Program and any successor retirement program of the Company. For purposes of such calculation, the following assumptions shall
apply: (1) that the Employee would continue to be compensated during the thirty-six (36) month period following termination at an annual rate of compensation equal to that used to calculate the payments provided by paragraph 9(a)(i) and
(ii) above, calculated on the basis of the 

  

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compensation amount used in the benefit formula under the Retirement Program; (2) that the Employee is fully vested in the benefit payable under the
Retirement Program; and (3) that the aggregate benefit that would have been paid under the Retirement Program is as of either the normal or early retirement date for which the Employee would have qualified, if the Employee were still employed
on that date, whichever would produce the highest present value amount payable under this paragraph; and (4) that for purposes of the calculation of the lump sum cash amount as described herein it will be assumed that the Employee would receive
aggregate retirement benefits for a period to be determined by an actuarial analysis in accordance with the standard assumptions used in providing annual funding for the Company’s normal Retirement Program; 
 (iv) A lump sum cash amount equal to the present value of the contributions which would have been made by the Company or any subsidiary of the Company
to the Employee’s account pursuant to any savings or thrift plan maintained by the Company or any subsidiary of the Company in which the Employee was participating immediately prior to such termination, calculated as if the Employee had
continued to be employed and to be entitled to such contributions during the thirty-six (36) month period immediately following such termination, at a rate of contribution equal to that made by the Company or any subsidiary of the Company
during the most recent contribution period preceding such termination; and 
 (v) A lump sum cash amount equal to the sum of (1) the
present value of the monthly cost that would have been incurred by the Company (exclusive of the Employee’s portion thereof and determined in good faith by the Company) if it provided group medical, dental and life insurance coverage to the
Employee and the Employee’s eligible dependents (at the same level and Employee cost as in effect at the time of employment termination) for a period of three (3) consecutive years following employment termination, determined based on


  

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the cost of such coverage at the time of employment termination and assuming such cost remained constant through the coverage period, and (2) an
additional payment (the “Additional Payment”) in an amount such that, after payment by the Employee of all Federal, State, city and local income taxes and the Employee’s portion of all payroll taxes imposed upon the Additional
Payment, the Employee retains an amount of the Additional Payment equal to the Federal, State, city and local income taxes and the Employee’s portion of all payroll taxes imposed upon the payment provided pursuant to subpart (1) of this
paragraph 9(a)(v). For a period of three (3) consecutive years following employment termination, the Employee and the Employee’s eligible dependents shall remain eligible to participate in the Company’s group medical, dental and life
insurance plan, in each case, that is generally available to other senior executives of the Company; provided, that the Employee shall pay one-hundred (100%) percent of the cost of such coverage. The continued coverage provided under this
paragraph 9(a)(v) shall not count against the Employee’s and the Employee’s dependent’s continuation of coverage period required under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (or any similar state or
local law). 
 (b) For purposes of calculating the lump sum cash payments provided by paragraphs 9(a)(i) through (v), above, present value
shall be determined by using a discount factor equal to one percentage point below the Prime Rate, compounded annually. The “Prime Rate” shall be the base rate on corporate loans at large U.S. money center commercial banks as reported in
The Wall Street Journal (or, if such rate is no longer published, such other base rate on corporate loans by large money center commercial banks in the United States to their most creditworthy customers as published by any newspaper or
periodical of general circulation) as of the date on which termination shall have occurred. 
  

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 (c) If the Employee terminates employment hereunder for any reason other than for Good Reason, if the
Company terminates the Employee’s employment as a result of Disability or Cause or if the Employee’s employment hereunder is terminated due to the Employee’s death, the Company shall have no further obligation hereunder and no further
payments (except for accrued and unpaid salary, bonus and expense reimbursement) shall be made to the Employee. 
 (d) (i) In the event
it shall be determined that any payment or distribution by the Company to or for the benefit of the Employee, whether paid or payable or distributed or distributable pursuant to the terms of this Agreement or otherwise (a “Payment”), would
be subject to the excise tax imposed by Section 4999 of the Internal Revenue Code of 1986, as amended (the “Code”) (or any successor thereto) or comparable state or local tax or any interest or penalties with respect to such excise
tax or comparable state or local tax (such excise tax, together with any such interest and penalties, are hereinafter collectively referred to as the “Excise Tax”), then the Employee shall be entitled to receive an additional payment (a
“Gross-Up Payment”). The Gross-Up Payment shall be equal to the sum of the Excise Tax and all taxes (including any interest or penalties imposed with respect to such taxes) imposed upon the Gross-Up Payment. 
 (ii) If the Employee determines that a Gross-Up Payment is required, the Employee shall so notify the Company in writing, specifying the amount of
Gross-Up Payment required and details as to the calculation thereof, the Company shall within thirty (30) days either pay such Gross-Up Payment (net of applicable wage withholding) to the Employee or furnish an unqualified opinion from
Independent Tax Counsel (as defined below), addressed to the Employee and the Company, that there is substantial authority (with the meaning of section 6661 of the Code) for the position that no Gross- Up Payment is required. “Independent Tax


  

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Counsel” means a lawyer with expertise in the area of executive compensation tax law, who shall be selected by the Employee and shall be reasonably
acceptable to the Company, and whose fees and disbursements shall be paid by the Company. 
 (iii) If the Internal Revenue Service or other
tax authority proposes in writing an adjustment to the income tax of the Employee which would result in a Gross-Up Payment, the Employee shall promptly notify the company in writing and shall refrain for at least thirty (30) days after giving
such notice, if so permitted by law, from paying any tax (including interest, penalties and additions to tax) asserted to be payable as a result of such proposed adjustment. Before the expiration of such period, the Company shall either pay the
Gross-Up Payment or provide an opinion from Independent Tax Counsel to the Employee and the Company as to whether it is more likely than not that the proposed adjustment would be successfully challenged if the matter were to be litigated. If the
opinion provides that a challenge would be more likely than not to be successful if the issue were litigated, and the Company requests in writing that the Employee contest such proposed adjustment, then the Employee shall contest the proposed
adjustment and shall consult in good faith with the Company with respect to the nature of all action to be taken in furtherance of the contest of such proposed adjustment; provided that the Employee, after such consultation with the Company,
shall determine in his sole discretion the nature of all action to be taken to contest such proposed adjustment, including (A) whether any such action shall initially be by way of judicial or administrative proceedings, or both,
(B) whether any such proposed adjustment shall be contested by resisting payment thereof or by paying the same and seeking a refund thereof, and (C) if the Employee shall undertake judicial action with respect to such proposed adjustment,
the court or other judicial body before which such action shall be commenced and the court or other judicial body to which any appeals should be taken. The Employee agrees to take 

  

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appropriate appeals of any judicial decision that would require the Company to pay a Gross-Up Payment, provided the Company requests in writing that the
Employee do so and provides an opinion from Independent Tax Counsel to the Employee and the Company that it more likely than not that the appeal would be successful. The Employee further agrees to settle, compromise or otherwise terminate a contest
with the Internal Revenue Service or other tax authority with respect to all or a portion of the proposed adjustment giving rise to the Gross-Up Payment, if requested by the Company in writing to do so at any time, in which case the Employee shall
be entitled to receive from the Company the Gross-Up Payment. In no event shall the Employee compromise or settle all or any portion of a proposed adjustment which would result in a Gross-Up Payment without the written consent of the Company.

 The Employee shall not be required to take or continue any action pursuant to this paragraph 9(d) unless the Company acknowledges its liability under this
Agreement in the event that the Internal Revenue Service or other tax authority prevails in the contest. The Company hereby agrees to indemnify the Employee in a manner reasonably satisfactory to the Employee for any expenses (including any fees,
penalties, interest or additions to tax) which the Employee may incur as a result of contesting the validity of any Excise Tax and to pay the Employee promptly upon receipt of a written demand therefor all costs and expenses which the Employee may
incur in connection with contesting such proposed adjustment (including reasonable fees and disbursements of Independent Tax Counsel); provided, however, that the Company shall not be required to pay any amount necessary to permit the
Employee’s institution of a claim for refund under this paragraph 9(d)(iii). 
 If the Employee shall have contested any proposed adjustment as above
provided, and for so long as the Employee shall be required under the terms of this paragraph 9(d)(iii) to continue such contest, the Company shall not be required to pay a Gross-Up Payment until there occurs 

  

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a Final Determination (as defined below) of the liability of the Employee for the tax and any interest, penalties and additions to tax asserted to be payable
as a result of such proposed adjustment. A “Final Determination” shall mean (A) a decision, judgment, decree or other order by any court of competent jurisdiction, which decision, judgment, decree or other order has become final after
all allowable appeals by either party to the action have been exhausted, the time for filing such appeal has expired or the Company has no right under the terms hereof to request an appeal, (ii) a closing agreement entered into under
Section 7121 of the Code or any other settlement agreement entered into in connection with an administrative or judicial proceeding and with the consent of the Company, or (iii) the expiration of the time for instituting a claim for
refund, or if such a claim was filed, the expiration of the time for instituting suit with respect thereto. 
 (iv) In the event the
Employee receives any refund from the Internal Revenue Service or other tax authority on account of an overpayment of Excise Tax, such amount and interest attributable thereto shall be promptly paid by the Employee to the Company. 
 (v) Notwithstanding anything contained herein to the contrary, any Gross-Up Payment or reimbursement by the Company of expenses incurred by the Employee
in connection with a tax audit or litigation relating to the Excise Tax, as provided herein, shall be paid no later than the last day of the calendar year following the calendar year in which the Employee remitted the Excise Tax or if, following any
such tax audit or litigation no Excise Tax is paid, the end of the calendar year following the calendar year in which the audit is completed or there is a final and nonappealable settlement or other resolution of the litigation. 
 10. Source of Payments. All payments provided for in paragraphs 5, 6, 7 and 9 shall be paid in cash from the general funds of the Company and its
subsidiaries. The Company shall not be required to establish a special or separate fund or other segregation of assets to assure such payments. 
  

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 11. Litigation Expenses. The Company agrees to pay, upon written demand therefor by the Employee,
all legal fees and expenses the Employee reasonably incurs as a result of any dispute or contest (regardless of the outcome thereof) by or with the Company or others regarding the validity or enforceability of, or liability under, any provision of
this Agreement. The Employee agrees to repay to the Company any such fees and expenses paid or advanced by the Company if and to the extent that the Company or such others obtains a judgment or determination that the Employee’s claim was
frivolous or was without merit from a court of competent jurisdiction from which no appeal may be taken, whether because the time to do so has expired or otherwise. Notwithstanding any provision hereof or any other agreement, (a) the Company
may offset any other obligation it has to the Employee by the amount of such repayment, (b) the amount of expenses eligible for reimbursement during any calendar year may not affect the expenses eligible for reimbursement in any other calendar
year, (c) no reimbursement of an expense pursuant to the first sentence of this paragraph 11 shall be provided to the Employee later than the calendar year following the calendar year in which the expense was incurred and (d) the right to
reimbursement under this Section 11 is not subject to liquidation or exchange for another benefit. 
 Notwithstanding any provision of
New Hampshire law to the contrary, in no event shall the Employee be required to reimburse the Company for any of the costs and expenses relating to such litigation or other proceeding. The obligation of the Company under this paragraph 11 shall
survive the termination for any reason of this Agreement (whether such termination is by the Company, by the Employee, upon the expiration of this Agreement or otherwise) and shall remain in effect until the applicable statute of limitation has
expired with respect to any possible dispute or contest by or with the Company or others regarding the validity or enforceability of, or liability under, any provision of this Agreement. 
  

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 12. Income Tax Withholding. The Company may withhold from any payments made under this Agreement
all federal, state, city or other taxes as shall be required pursuant to any law or governmental regulation or ruling. 
 13. Entire
Understanding. This Agreement contains the entire understanding between the Company and the Employee with respect to the subject matter hereof and supersedes any prior employment agreement between the Company and the Employee, except that this
Agreement shall not affect or operate to reduce any benefit or compensation inuring to the Employee of a kind elsewhere provided and not expressly provided for in this Agreement. 
 14. Mitigation. In no event shall the Employee be obligated to seek other employment or take any other action by way of mitigation of the amounts
payable to the Employee under any of the provisions of this Agreement. 
 15.
Release. Prior to receipt of any payments pursuant to paragraph 9 of this Agreement, the Employee shall execute a general employment claims release of the Company in a form reasonably acceptable to the Company. Notwithstanding anything
contained herein to the contrary, the Company shall have no obligation to make any payments pursuant to paragraph 9 of this Agreement unless the Employee executes such release and the release becomes non-revocable by the sixtieth (60th) day following the date of termination of the Employee’s employment. 
 16. Severability. If, for any reason, any one or more of the provisions or part of a provision contained in this Agreement shall be held to be invalid, illegal or unenforceable in any respect, such invalidity,
illegality or unenforceability shall not affect any other provision or part of a provision of this Agreement not held so invalid, illegal or unenforceable, and each other 

  

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provision or part of a provision shall to the full extent with law continue in full force and effect. If this Agreement is held invalid or cannot be
enforced, then to the full extent permitted by law any prior agreement between the Company and the Employee shall be deemed reinstated as if this Agreement had not been executed. 
 17. Consolidation, Merger, or Sale of Assets. Nothing in this Agreement shall preclude the Company from consolidating or merging into or with, or
transferring all or substantially all of its assets to, another corporation with a net worth at least equal to that of the Company hereunder. Upon such a consolidation, merger or transfer of assets and assumption, the term “the Company”,
as used herein shall mean such other corporation and this Agreement shall continue in full force and effect. If, in connection with a Change in Control, the Employee accepts employment with an entity that is or will be considered the Company
pursuant to the prior sentence (or any parent or subsidiary thereof), the Employee shall not be considered to have terminated employment for purposes of this Agreement solely as a result of the termination of employment with the Company and
commencement of employment with such successor “Company” entity. For avoidance of doubt, (a) the prior sentence shall not preclude the Employee from terminating employment due to Good Reason if an event or condition that constitutes
Good Reason arises before, as a result of, or after such termination of employment with the Company and commencement of employment with such successor “Company” entity and (b) the Employee’s acceptance of employment with a
successor entity shall not be deemed to constitute the Employee’s agreement in writing that an event or condition shall not constitute Good Reason. 
  

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 18. Notices. All notices, requests, demands and other communications required or permitted
hereunder shall be given in writing and shall be deemed to have been duly given if delivered or mailed, postage prepaid, first class as follows: 
  

	 	(a)	to the Company: 

 Unitil Corporation 
 6 Liberty Lane West 
 Hampton, New Hampshire
03833 
 Attention: Corporate Secretary 
  

	 	(b)	to the Employee: 

 at the address then shown in the
Employee’s employment records. 
 19. No Attachment. Except as required by law, no right to receive payments under this Agreement
shall be subject to anticipation, commutation, alienation, sale assignment, encumbrance, charge, pledge, or hypothecation or to execution, attachment, levy, or similar process or assignment by operation of law, and any attempt, voluntary or
involuntary, to effect any such action shall be null, void and of no effect. 
 20. Binding Agreement. This Agreement shall be binding
upon, and shall inure to the benefit of, the Employee and the Company and their respective permitted successors and assigns. 
 21.
Modification and Waiver. This Agreement may not be modified or amended except by an instrument in writing signed by the parties hereto. No term or condition of this Agreement shall be deemed to have been waived, nor shall there be any
estoppel against the enforcement of any provision of this Agreement except by written instrument signed by the party charged with such waiver or estoppel. No such written waiver shall be deemed a continuing waiver unless specifically stated therein,
and each such waiver shall operate only as to the specific term or condition waived and shall not constitute a waiver of such term or condition for the future or as to any act other than specifically waived. 
 22. Headings of No Effect. The paragraph headings contained in this Agreement are included solely for convenience of reference and shall not in
any way affect the meaning or interpretation of any of the provisions of this Agreement. 
  

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 23. Governing Law. This Agreement and its validity, interpretation, performance, and enforcement
shall be governed by the laws of the State of New Hampshire, without giving effect to the choice of law provisions in effect in such State. 
 24. Code Section 409A. The provisions of this Agreement and all payments made pursuant to this Agreement are intended to comply with, and should be interpreted so that they are consistent with, the requirements of
Section 409A of the Code, and any related regulations or other applicable guidance promulgated thereunder (collectively, “Section 409A”). It is the intent of the parties hereto that all severance payments and benefits provided
pursuant to this Agreement qualify as short-term deferrals, as defined in Treasury Regulation §1.409A-1(a)(4), separation pay due to an involuntary separation from service under Treasury Regulation §1.409A-1(b)(9)(iii), and/or limited
payments, as defined in Treasury Regulation §1.409A-1(b)(9)(v)(D)). Notwithstanding the foregoing, if (i) it is determined that any payments or benefits provided pursuant to this Agreement that are paid upon separation from service (as
that term is used in Section 409A) constitute deferred compensation for purposes of Section 409A (after taking into account the exception for short-term deferrals set forth in Treasury Regulation §1.409A-1(a)(4), the exception for
separation pay due to an involuntary separation set forth in Treasury Regulation §1.409A-1(b)(9)(iii), the exception for limited payments as set forth in Treasury Regulation §1.409A-1(b)(9)(v)(D) and/or any other applicable exception from
Section 409A) and (ii) the Employee is a “specified employee,” as determined under the Company’s policy for determining specified employees, on the date on which the separation from service occurs, no such payments or
benefits shall be provided prior to the first business day after the date that is six (6) months following the Employee’s termination of employment or, if the Employee dies during such six (6) month period, on the first business day
after the date of the Employee’s death. The first payment that can be made shall include the cumulative amount of 

  

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any amounts that could not be paid during such six (6) month period. In addition, interest will accrue at the 10-year T-bill rate (as in effect as of
the first business day of the calendar year in which the termination of employment occurs) on all payments not paid to the Employee prior to the first business day after the six (6) month anniversary of termination of employment that otherwise
would have been paid during such six (6) month period had this delay provision not applied to the Employee and shall be paid with the first payment after such six (6) month period. For all purposes under this Agreement, references to
termination of employment, employment termination or words of similar import shall be interpreted to mean “separation from service,” as that term is used in Section 409A, and the Employee’s employment shall in no event be deemed
to have terminated unless and until a separation from service shall have occurred for purposes of Section 409A. 
 IN WITNESS WHEREOF,
the Company has caused this Agreement to be executed by its officers thereunto duly authorized, and the Employee has signed this Agreement, all as of the date first above written. 
  

			
	Unitil CORPORATION
		
	By:	 	  

	
	Unitil SERVICE CORP.
		
	By:	 	  




			
		
	Employee:	 	  



  

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 Officers Who Have Executed Above Severance Agreement: 
 Officers 
 Robert G. Schoenberger 
 Mark H. Collin 
 George R. Gantz 
 Raymond J. Morrissey 
 Todd R. Black 
 Laurence M. Brock 
  

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