Document:

EX-4.2

 Exhibit 4.2 
 FORM OF 
 RESOLUTE ENERGY CORPORATION 

RESTRICTED STOCK GRANT AGREEMENT 
 (Employees) 
 This Restricted Stock Grant Agreement (this
“Agreement”) between RESOLUTE ENERGY CORPORATION (the “Corporation”) and [ name ] (“Participant”) is dated effective [date], 20     (the “Date of Grant”).

 RECITALS 
 A. The Corporation has adopted the Resolute Energy Corporation 2009 Performance Incentive Plan, as amended by Amendment No. 1 to the Resolute Energy Corporation 2009 Performance Incentive Plan (the
“Plan”); 
 B. The Plan provides for the granting of restricted stock awards to eligible persons as determined
by the Administrator; and 
 C. The Administrator has determined that Participant is a person eligible to receive a restricted
stock award under the Plan and has determined that it would be in the best interests of the Corporation to grant the restricted stock award provided for herein. 
 AGREEMENT 
 1. Grant of Restricted Stock. 

(a) Stock. Pursuant to the Plan and in consideration of employment services rendered and to be rendered by Participant to the
Corporation, Participant is hereby awarded [            ] shares of the Corporation’s common stock (the “Common Stock”), subject to the conditions of the Plan and this
Agreement (the “Restricted Stock”). 
 (b) Plan Incorporated. Participant acknowledges receipt of a copy
of the Plan, and agrees that, except as contemplated by Section 11 below, this award of Restricted Stock shall be subject to all of the terms and conditions set forth in the Plan, including future amendments thereto, if any, pursuant to the
terms thereof, which Plan is incorporated herein by reference as a part of this Agreement. Except as defined herein, capitalized terms shall have the same meanings ascribed to them under the Plan. 

2. Vesting and Forfeiture. 
 (a) Vesting Schedule. Participant shall vest in his or her rights under the Restricted Stock pursuant to the following schedule (each date upon which vesting occurs being referred to herein as a
“Vesting Date”), subject to the conditions of the Plan and this Agreement: 

			
	 Date
	  	Number of Shares
Vested on
each
Vesting Date
		  	[    ]
		  	[    ]
		  	[    ]

 (b) Continuing Employment. Except as provided below, vesting pursuant to the foregoing schedule
shall occur on a Vesting Date only if Participant continues to be employed by the Corporation from the Date of Grant to such Vesting Date. If the Participant ceases to be employed by the Corporation at any time prior to the final Vesting Date, for
any reason or no reason, with or without cause, except as provided below, all unvested Restricted Stock shall be forfeited immediately and automatically on the date that Participant’s employment is terminated, without payment of any
consideration to Participant, and the Participant shall have no further rights with respect to such Restricted Stock. If the Participant is employed by a subsidiary of the Corporation, any references in this Agreement to employment with the
Corporation shall instead be deemed to refer to employment with such subsidiary. 
 (c) Acceleration of Vesting on Death or
Disability. Notwithstanding the foregoing, all unvested Restricted Stock shall vest effective immediately upon (i) the death of Participant or (ii) the Administrator’s determination that Participant suffers from a Disability (as
defined). For purposes of this Agreement, “Disability” means: (A) if the Participant’s employment with the Corporation is subject to the terms of an employment agreement between the Participant and the Corporation, which
employment agreement includes a definition of “Disability,” the term “Disability” as used in this Agreement shall have the meaning set forth in such employment agreement during the period that such employment agreement remains in
effect; and (B) in the absence of such an agreement, the term “Disability” shall mean a physical or mental infirmity which impairs the Participant’s ability to substantially perform his or her duties for a period of 180
consecutive days. 
 (d) Accelerated Vesting of Restricted Stock. If, when and to the extent determined by the
Administrator pursuant to Section 7.3 of the Plan, in the event that the Corporation undergoes a Change in Control Event, any unvested Restricted Stock held by Participant will become fully vested. 

3. Issuance and Limits on Transferability. Shares of Restricted Stock shall not be transferable until vested except by will or the laws of descent
and distribution or pursuant to a beneficiary designation, or as otherwise permitted by Section 5.7 of the Plan. No right or benefit hereunder shall in any manner be liable for or subject to any debts, contracts, liabilities, or torts of
Participant. Any purported assignment, alienation, pledge, attachment, sale, transfer or other encumbrance of shares of unvested Restricted Stock that does not satisfy the requirements of this Agreement and the Plan shall, prior to the lapse of the
restrictions on such shares pursuant to Section 2, be void and unenforceable against the Corporation. The Corporation shall not be required to treat as owner of such Restricted Stock any transferee to whom such Restricted Stock has been
transferred in violation of any of the provisions of this Agreement. 

  
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 4. Certificates. A certificate evidencing the Restricted Stock may be issued by the Corporation in
Participant’s name, or at the option of the Corporation, in the name of a nominee of the Corporation, pursuant to which Participant shall have voting rights and shall be entitled to receive all dividends until the Restricted Stock is otherwise
forfeited pursuant to the provisions of this Agreement. The certificate shall bear a legend evidencing the nature of the Restricted Stock, and the Corporation may cause the certificate to be delivered upon issuance to the Secretary of the
Corporation or to such other depository as may be designated by the Corporation as a depository for safekeeping until the Vesting Date or a forfeiture occurs pursuant to the terms of the Plan and this Agreement. Upon the request of the
Administrator, Participant shall deliver to the Corporation a stock power, endorsed in blank, relating to the unvested Restricted Stock. Additionally, in lieu of issuing a certificate evidencing the Restricted Stock, the Corporation may issue such
stock by establishing a restricted stock file with its transfer agent evidencing such Restricted Stock prior to the lapsing of the applicable restriction. Upon a Vesting Date, the Corporation shall cause a certificate or certificates to be issued
without legend in the name of Participant for the vested Restricted Stock. Notwithstanding any other provisions of this Agreement, the issuance or delivery of any shares of Restricted Stock (whether subject to restrictions or unrestricted) may be
postponed for such period as may be required to comply with applicable requirements of any national securities exchange or any requirements under any law or regulation applicable to the issuance or delivery of such shares. The Corporation shall not
be obligated to issue or deliver any shares of Restricted Stock if the issuance or delivery thereof shall constitute a violation of any provision of any law or of any regulation of any governmental authority or any national securities exchange.

 5. Status of Stock. Participant agrees that the Restricted Stock will not be sold or otherwise disposed of in any manner that would
constitute a violation of any applicable federal or state securities laws. Participant also agrees (i) to the extent the shares are certificated, that the certificates representing the Restricted Stock may bear such legend or legends as the
Corporation deems appropriate in order to assure compliance with applicable securities laws, (ii) that the Corporation may refuse to register the transfer of the Restricted Stock on the stock transfer records of the Corporation if such proposed
transfer would, in the opinion of counsel satisfactory to the Corporation, constitute a violation of any applicable securities law and (iii) that the Corporation may give related instructions to its transfer agent, if any, to stop registration
of the transfer of the Restricted Stock. 
 6. Withholding. In order to comply with all applicable federal or state income tax laws or
regulations, the Corporation may take such action as it deems appropriate to ensure that all applicable federal or state payroll, withholding, income or other taxes, which are the sole and absolute responsibility of Participant, are withheld or
collected from Participant. Upon any exercise, vesting, or payment of any award, the Corporation shall have the right at its option to require the Participant (or the Participant’s personal representative or beneficiary, as the case may be) to
pay or provide for payment of at least the minimum amount of any taxes which the Corporation may be required to withhold with respect to such award event or payment. In any case where a tax is required to be withheld in connection with the delivery
of shares of Common Stock under this Agreement, the Administrator may in its sole discretion grant (either at the time of the award or thereafter) to the Participant the right to elect, pursuant to such rules and subject to such conditions as the
Administrator may establish, to satisfy Participant’s federal and state tax withholding obligations arising from the receipt of, or the lapse of restrictions relating to, the Restricted Stock, by (i) delivering cash, check (bank check,
certified check or personal check) or money order payable to the Corporation, (ii) having the Corporation withhold a portion of the Restricted Stock otherwise to be delivered having a Fair Market Value equal to the amount of such taxes,
(iii) delivering to the Corporation shares of Common Stock already owned by Participant having a Fair Market Value equal to the amount of such tax withholding, or (iv) allowing the Corporation to deduct from any amount otherwise payable in
cash to the Participant the amount of such tax withholding. The delivery of any shares under the preceding subsection (iii) must have been owned by and fully vested in the Participant for no less than six months prior to the date delivered to
the Corporation if such shares were acquired upon the exercise of an option or upon the vesting of restricted stock units or other restricted stock. The Corporation will not deliver any fractional shares of Common Stock but will pay, in lieu
thereof, the Fair Market Value of such fractional shares of Common Stock. Participant’s election must be made on or before the date that the amount of tax to be withheld is determined, or else the Corporation shall be entitled to elect the
method in which Participant’s federal and state withholding obligations shall be satisfied. 

  
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 7. Tax Election. The Corporation has advised Participant to seek Participant’s own tax and
financial advice with regard to the federal and state tax considerations resulting from Participant’s receipt of Restricted Stock pursuant to this Agreement. Participant is making Participant’s own determination as to the advisability of
making a Section 83(b) election with respect to the Restricted Stock. Participant understands that the Corporation will report to appropriate taxing authorities the payment to Participant of compensation income either (i) upon the vesting
of the Restricted Stock or (ii) if Participant makes a timely Section 83(b) election, as of the Date of Grant. Participant understands that he or she is solely responsible for the payment of all federal and state taxes resulting from this
grant or vesting of Restricted Stock. With respect to tax withholding amounts, the Corporation has all of the rights specified in Section 6 of this Agreement and has no obligations to Participant except as expressly stated in Section 6 of
this Agreement. 
 8. Authority of Administrator. In making any decisions or taking any actions with respect to the matters covered by
this Agreement, the Administrator shall have all of the authority and discretion, and shall be subject to all of the protections, provided for in the Plan. All decisions and actions by the Administrator with respect to this Agreement, including the
satisfaction of Performance Criteria, shall be made in the Administrator’s discretion and shall be final and binding on the Participant. 

9. Binding Effect. This Agreement shall bind Participant and the Corporation and their beneficiaries, survivors, executors, administrators and
transferees. 
 10. No Right to Continued Employment. The Participant acknowledges and agrees that, notwithstanding the fact that the
vesting of the Restricted Stock is contingent upon his or her continued employment by the Corporation, this Agreement does not constitute an express or implied promise of continued employment or confer upon the Participant any rights with respect to
continued employment by the Corporation. 

  
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 11. Applicable Law. This Agreement shall be governed by and construed and enforced in accordance with
the laws of the State of Delaware without regard to conflict of law principles thereunder. 
 12. Conflicts and Interpretation. In the
event of any conflict between this Agreement and the Plan, this Agreement shall control. In the event of any ambiguity in this Agreement, or any matters as to which this Agreement is silent, the Plan shall govern including, without limitation, the
provisions thereof pursuant to which the Administrator has the power, among others, to (i) interpret the Plan, (ii) prescribe, amend and rescind rules and regulations relating to the Plan and (iii) make all other determinations deemed
necessary or advisable for the administration of the Plan. 
 13. Amendment. The Corporation may modify, amend or waive the terms of the
Restricted Stock award, prospectively or retroactively, but no such modification, amendment or waiver shall impair the rights of Participant without his or her consent, except as required by applicable law, NYSE or stock exchange rules, tax rules or
accounting rules. Prior to the effectiveness of any modification, amendment or waiver required by tax or accounting rules, the Corporation will provide notice to Participant and the opportunity for Participant to consult with the Corporation
regarding such modification, amendment or waiver. The waiver by either party of compliance with any provision of this Agreement shall not operate or be construed as a waiver of any other provision of this Agreement, or of any subsequent breach by
such party of a provision of this Agreement. 
 14. Participant’s Acknowledgments. The Participant acknowledges that he or she has
read this Agreement, has received and read the Plan and the Prospectus captioned Resolute Energy Corporation 2009 Performance Incentive Plan (“Information”), and understands the terms and conditions of this Agreement, the Plan and
the Information. 
 15. Defined Terms. All terms used herein and not otherwise defined herein shall have the meanings set forth therefor
in the Plan. 
 [Signature Page Follows.] 

  
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 IN WITNESS WHEREOF, the parties have executed this Restricted Stock Grant Agreement
(Employees) as of the date first written above. 
  

			
	RESOLUTE ENERGY CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	PARTICIPANT:
	
	  

		 	[Participant]

  
 6EX-4.1

 Exhibit 4.1 

 
  

 
 SUPPLEMENTAL INDENTURE NO. 4

 Dated as of March 14, 2013 
 Between 
 KANSAS CITY POWER & LIGHT COMPANY, 

As Issuer 
 and

 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 
 As Trustee 
 Creating 3.15% Senior Notes Due 2023 

 
  

 

 THIS SUPPLEMENTAL INDENTURE NO. 4 (the “Supplemental Indenture”),
dated as of March 14, 2013, between KANSAS CITY POWER & LIGHT COMPANY, a Missouri corporation (“Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., a national banking association (formerly The Bank of
New York Trust Company, N.A.), as Trustee (“Trustee”). 
 W I T N E S S E T H: 

WHEREAS, the Company has heretofore executed and delivered to the Trustee an Indenture, dated as of May 1, 2007 (the
“Original Indenture” and, as previously and hereby supplemented, the “Indenture”), providing for the issuance from time to time of one or more series of the Company’s Notes; 

WHEREAS, pursuant to the terms of the Indenture, the Company desires to provide for the establishment of a series of Notes to be
designated as the “3.15% Notes due 2023” (the “2023 Notes”), the form and substance of the 2023 Notes and the terms, provisions and conditions thereof to be set forth as provided in the Original Indenture and this
Supplemental Indenture; 
 WHEREAS, Section 2.05(c) of the Original Indenture provides that various matters with respect to
any series of Notes issued under the Indenture may be established in an indenture supplemental to the Indenture; 
 WHEREAS,
Section 13.01(a)(3) of the Original Indenture provides that the Company and the Trustee may enter into an indenture supplemental to the Indenture to establish the form or terms of Notes of any series as permitted by Sections 2.01 of the
Original Indenture or to establish or reflect any terms of any Note of any series determined pursuant to Section 2.05; and 

WHEREAS, all acts and things necessary to make this Supplemental Indenture, when duly executed and delivered, a valid, binding and legal
instrument in accordance with its terms and for the purposes herein expressed, have been done and performed; and the execution and delivery of this Supplemental Indenture have been in all respects duly authorized. 

NOW, THEREFORE, in consideration of the promises and in further consideration of the sum of One Dollar in lawful money of the United
States of America paid to the Company by the Trustee at or before the execution and delivery of this Supplemental Indenture, the receipt whereof is hereby acknowledged, and of other good and valuable consideration, it is agreed by and between the
Company and the Trustee as follows: 

 ARTICLE ONE 
 Relation to Indenture; Additional Definitions 
 Section 1.01.
Relation to Indenture. This Supplemental Indenture constitutes an integral part of the Original Indenture. 

Section 1.02. Additional Definitions. For all purposes of this Supplemental Indenture, capitalized terms used herein shall
have the respective meanings specified below or in the Original Indenture, as the case may be. 

“Comparable Treasury Issue” means the United States Treasury security selected by the Quotation Agent as
having a maturity comparable to the remaining term of the 2023 Notes to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of
comparable maturity to the remaining term of the 2023 Notes. 
 “Comparable Treasury Price”
means, with respect to any redemption date, (1) the average of four Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (2) if the
Quotation Agent obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations, or (3) if only one such Reference Treasury Dealer Quotation is received, such quotation. 

“Corporate Trust Office” means the designated office of the Trustee at which at any particular time its
corporate trust business shall be administered, which office at the date hereof is located at 2 North LaSalle Street, Suite 1020, Chicago, Illinois 60602, Attention: Corporate Trust Administration; telecopy: (312) 827-8542. 

“Maturity Date” has the meaning set forth in Section 2.03. 

“Note Registrar” means The Bank of New York Mellon Trust Company, N.A., hereby appointed as an agency of
the Company in accordance with Section 6.02 of the Original Indenture. 
 “Original Indenture”
has the meaning set forth in the first paragraph of the Recitals hereof. 
 “Quotation Agent”
means a Reference Treasury Dealer appointed by the Company. 
 “Reference Treasury Dealer”
means (1) each of each of BNP Paribas Securities Corp. and Merrill Lynch, Pierce, Fenner & Smith Incorporated or their affiliates, and their respective successors, unless either of them ceases to be a primary U.S. government
securities dealer in the United States of America (“Primary Treasury Dealer”), in which case the Company will substitute therefore another Primary Treasury Dealer, (2) a Primary Treasury Dealer selected by Mitsubishi UFJ Securities
(USA), Inc. and (3) two other Primary Treasury Dealers selected by the Company. 
 “Reference
Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Quotation Agent, of the bid and asked prices for the Comparable Treasury Issue (expressed in each
case as a percentage of its principal amount) quoted in writing to the Quotation Agent by such Reference Treasury Dealer at 5:00 p.m., New York City time on the third business day preceding such redemption date. 

  
 2 

 “Treasury Rate” means, with respect to any redemption date,
the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price
for such redemption date. 
 “2023 Notes” has the meaning set forth in the second paragraph of
the Recitals hereof. 
 All references herein to Articles, Sections or Exhibits, unless otherwise specified, refer to the
corresponding Articles, Sections or Exhibits of this Supplemental Indenture. The terms “herein,” “hereof,” “hereunder” and other words of similar import refer to this Supplemental Indenture. 

ARTICLE TWO 
 The Series of Notes 
 Section 2.01. Title of the Notes. The
2023 Notes shall be designated as the “3.15% Notes due 2023.” 
 Section 2.02. Limitation on Aggregate
Principal Amount. The Trustee shall authenticate and deliver 2023 Notes for original issue on the Issue Date in the aggregate principal amount of $300,000,000, upon a Company Order for the authentication and delivery thereof and satisfaction of
Sections 2.01(a) and 2.05(c) of the Original Indenture. Such order shall specify the amount of the 2023 Notes to be authenticated, the date on which the original issue of 2023 Notes is to be authenticated and the name or names of the initial Holder
or Holders. The aggregate principal amount of 2023 Notes that may initially be outstanding shall not exceed 300,000,000 provided, however, that the authorized aggregate principal amount of the 2023 Notes may be increased above such amount
without the consent of the Holders of any then outstanding 2023 Notes by a Board Resolution authorizing such increase. Any additional notes issued pursuant to such increase must be part of the same issue and fungible with the initially issued Notes
for U.S. federal income tax purposes. 
 Section 2.03. Stated Maturity. The Stated Maturity of the 2023 Notes shall
be March 15, 2023 (the “Maturity Date”). 
 Section 2.04. Interest and Interest Rate.

 (a) The 2023 Notes shall bear interest at the rate of 3.15% per annum, from and including their Original Issue Date of
March 14, 2013, or from the most recent Interest Payment Date to which interest has been paid to, but excluding, the Maturity Date. Such interest shall be payable semiannually in arrears, on the Interest Payment Dates of March 15 and
September 15 in each year, commencing September 15, 2013. Interest accrued on the 2023 Notes from the last Interest Payment Date before the Maturity Date shall be payable on the Maturity Date. 

  
 3 

 (b) The interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date shall be paid to the Persons in whose names the 2023 Notes (or one or more predecessor securities) are registered on the Regular Record Date for such Interest Payment Date, being the close of business on the immediately preceding
March 1 and September 1, as the case may be, whether or not such day is a Business Day. 
 Section 2.05. Place
of Payment. Principal and interest payments on the 2023 Notes will be made by the Company to The Depository Trust Company (“DTC”) while it is the Depositary for the 2023 Notes, or if DTC shall cease to be the Depositary for the
2023 Notes, to the Trustee at its offices, as paying agent. 
 Section 2.06. Place of Registration or Exchange; Notices
and Demands With Respect to the 2023 Notes. The place where the Holders of the 2023 Notes may present the 2023 Notes for registration of transfer or exchange and may make notices and demands to or upon the Company in respect of the 2023 Notes
shall be the Corporate Trust Office of the Trustee. 
 Section 2.07. Global Notes. 

(a) 2023 Notes shall be issuable in whole or in part in the form of one or more permanent Global Notes in definitive, full registered,
book-entry form, without interest coupons. The Global Note shall be deposited on its issuance date with, or on behalf of, the Depositary. 
 (b) DTC shall initially serve as Depositary with respect to the Global Note. Such Global Note shall bear the legend set forth in the form of Note attached as Exhibit A. 

Section 2.08. Form of Securities. The Global Note shall be substantially in the form attached as Exhibit A.

 Section 2.09. Note Registrar. The Trustee shall initially serve as the Note Registrar for the 2023 Notes.

 Section 2.10. Sinking Fund Obligations. The Company shall have no obligation to redeem or purchase any 2023 Notes
pursuant to any sinking fund or analogous requirement or upon the happening of a specified event or at the option of Holder thereof. 
 ARTICLE THREE 
 Optional Redemption of the 2023 Notes 

Section 3.01. Redemption Price. Prior to December 15, 2022, the Company shall have the right to redeem the 2023 Notes,
at its option, at any time in whole, or from time to time in part, at a redemption price equal to the greater of: 

  
 4 

 (i) 100% of the principal amount of the 2023 Notes to be redeemed; and

 (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the 2023
Notes to be redeemed (not including any portion of such payments of interest accrued as of the date of redemption), discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the
Treasury Rate, plus 20 basis points; 
 plus, in each case, accrued and unpaid interest on the principal amount being redeemed to the redemption
date. 
 On or after December 15, 2022, the Company shall have the right to redeem the 2023 Notes, at its option, at any
time in whole, or from time to time in part, at a redemption price equal to 100% of the principal amount of the 2023 Notes to be redeemed, plus accrued and unpaid interest on the principal amount being redeemed to the redemption date. 

Notwithstanding the foregoing, installments of interest on the 2023 Notes that are due and payable on an Interest Payment Date falling on
our prior to a redemption date shall be payable on such Interest Payment Date to the Holders as of the close of business on the relevant Record Date. 
 ARTICLE FOUR 
 Miscellaneous Provisions 

Section 4.01. The Indenture, as supplemented by this Supplemental Indenture, is in all respects hereby adopted, ratified and
confirmed. 
 Section 4.02. This Supplemental Indenture may be executed in any number of counterparts, each of which shall
be an original, but such counterparts shall together constitute but one and the same instrument. 
 Section 4.03. THIS
SUPPLEMENTAL INDENTURE AND EACH 2023 NOTE SHALL BE GOVERNED BY AND DEEMED TO BE A CONTRACT MADE UNDER, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK AND FOR ALL PURPOSES SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
STATE OF NEW YORK WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES THEREOF. 
 Section 4.04. If any provision in this
Supplemental Indenture limits, qualifies or conflicts with another provision hereof that is required to be included herein by any provisions of the Trust Indenture Act, such required provision shall control. 

  
 5 

 Section 4.05. In case any provision in this Supplemental Indenture or the 2023 Notes
shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 Section 4.06. The recitals contained herein shall be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as
to the proper authorization or due execution hereof or of the 2023 Notes by the Company or as to the validity or sufficiency of this Supplemental Indenture or the 2023 Notes. The Trustee shall not be accountable for the use or application by the
Company of the 2023 Notes or the proceeds of the 2023 Notes. 

*        *        *      
  * 

  
 6 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the day and year first above written. 
  

					
	KANSAS CITY POWER & LIGHT COMPANY
		
	By	 	/s/ Kevin E. Bryant
		 	 Name:
 Title:
  
	 	 Kevin E. Bryant
 Vice
President – Investor Relations
 and Strategic Planning and Treasurer

  

					
	 [CORPORATE SEAL]
  

ATTEST:

		
	By:	 	/s/ Jalieah X. Huddleston
		 	Name:	 	Jaileah X. Huddleston
		 	Title:	 	Assistant Secretary and Corporate Counsel – Securities and Finance

  

					
	 THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
 as Trustee

		
	By	 	/s/ R. Tarnas
		 	 Name:

Title:
	 	 R. Tarnas
 Vice
President

  
 7 

					
	STATE OF MISSOURI	  	)	  	
		  	)	  	ss.
	COUNTY OF JACKSON	  	)	  	

 On the 14th day of March, 2013, before me personally came Kevin E. Bryant, to me known, who, being by me duly sworn, did depose
and say that he is Vice President – Investor Relations and Strategic Planning and Treasurer of KANSAS CITY POWER & LIGHT COMPANY, one of the corporations described in and which executed the above instrument; that he knows the corporate
seal of said corporation; that the seal affixed to the said instrument is such corporate seal; that it was so affixed by authority of the Board of Directors of said corporation; and that he signed his name thereto by like authority. 

[NOTARIAL SEAL] 
  

	
	/s/ Annette G. Carter
	Notary Public

  
 8 

					
	STATE OF MISSOURI	  	)	  	
		  	)	  	ss.
	COUNTY OF JACKSON	  	)	  	

 On the 14th day of March, 2013, before me personally came Jaileah X. Huddleston, to me known, who, being by me duly sworn, did
depose and say that she is Assistant Secretary and Corporate Counsel – Securities and Finance of KANSAS CITY POWER & LIGHT COMPANY, one of the corporations described in and which executed the above instrument; that she knows the
corporate seal of said corporation; that the seal affixed to the said instrument is such corporate seal; that it was so affixed by authority of the Board of Directors of said corporation; and that she signed her name thereto by like authority.

 [NOTARIAL SEAL] 
  

	
	/s/ Annette G. Carter
	Notary Public

  
 9 

 Exhibit A 
 [FORM OF NOTE] 
 [Certificated Note] 

For as long as this Global Note is deposited with or on behalf of The Depository Trust Company it shall bear the following legend. Unless this
certificate is presented by an authorized representative of The Depository Trust Company, a limited-purpose trust company organized under the New York Banking Law (“DTC”), to Kansas City Power & Light Company or its agent for
registration of transfer, exchange, or payment, and any certificate issued is registered in the name of Cede & Co. or in such other name as is requested by an authorized representative of DTC (and any payments made to Cede & Co. or
to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an
interest herein. 
 KANSAS CITY POWER & LIGHT COMPANY 

3.15% Notes due 2023 
  

			
	Interest Rate: 3.15% per annum	 	Principal Sum $300,000,000
	Maturity Date: March 15, 2023	 	CUSIP No. 485134 BN9
	Registered
Holder:                                        
        	 	

 KANSAS CITY POWER & LIGHT COMPANY, a Missouri corporation (hereinafter called the
“Company”, which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to the registered Holder named above or registered assigns, on the maturity date
stated above, the principal sum stated above and to pay interest thereon from March 14, 2013, or from the most recent Interest Payment Date to which interest has been duly paid or provided for, initially on September 15, 2013, and
thereafter semi-annually on March 15 and September 15 of each year, at the interest rate stated above, until the date on which payment of such principal sum has been made or duly provided for. The interest so payable on any Interest
Payment Date will be paid to the person in whose name this Note is registered at the close of business on the March 1 or September 1, as the case may be (whether or not such day is a Business Day), immediately preceding that Interest
Payment Date, except as otherwise provided in the Indenture. 
 The principal and interest payments on this Note will be made by
the Company to the registered Holder named above. All such payments shall be made in such coin or currency of the United States of America as at the time of payment is legally tender for payment of public and private debts. 

This Note is one of a duly authorized issue of notes of the Company (herein called the “Notes”), issued under an
Indenture, dated as of May 1, 2007, as supplemented by Supplemental Indenture No. 4, dated as of March 14, 2013 (herein called the “Indenture,” which 

  
 A-1

 
term shall have the meaning assigned to it in such instrument), between the Company and The Bank of New York Mellon Trust Company, N.A. (formerly The Bank of New York Trust Company, N.A.), as
Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture). Reference is made to the Indenture and any supplemental indenture thereto for the provisions relating, among other things, to the
respective rights of the Company, the Trustee and the Holders of the Notes, and the terms on which the Notes are authenticated and delivered. This Note is one of the series designated on the face hereof, initially limited in aggregate principal
amount to $300,000,000; provided, however, that the authorized aggregate principal amount of the Notes may be increased above such amount by a Board Resolution authorizing such increase. 

Prior to December 15, 2022, the Company shall have the right to redeem the Notes of this series, at its option, at any time in
whole, or from time to time in part, at a redemption price equal to the greater of (i) 100% of the principal amount to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the
Notes to be redeemed (not including any portion of such payments of interest accrued as of the date of redemption), discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the
Treasury Rate plus 20 basis points; plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to the redemption date. 
 On or after December 15, 2022, the Company shall have the right to redeem the Notes, at its option, at any time in whole, or from time to time in part, at a redemption price equal to 100% of the
principal amount of the Notes to be redeemed, plus accrued and unpaid interest on the principal amount being redeemed to the redemption date. 
 For purposes of determining the redemption price: 
 “Comparable Treasury
Issue” means the United States Treasury security selected by the Quotation Agent as having a maturity comparable to the remaining term of the Notes to be redeemed that would be utilized, at the time of selection and in accordance with
customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. 
 “Comparable Treasury Price” means, with respect to any redemption date, (1) the average of four Reference Treasury Dealer Quotations for such redemption date, after excluding the
highest and lowest such Reference Treasury Dealer Quotations, or (2) if the Quotation Agent obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations, or (3) if only one such Reference Treasury
Dealer Quotation is received, such quotation. 
 “Quotation Agent” means a Reference Treasury Dealer appointed
by the Company. 

  
 A-2

 “Reference Treasury Dealer” means (1) each of BNP Paribas Securities
Corp. and Merrill Lynch, Pierce, Fenner & Smith Incorporated or their affiliates, and their respective successors, unless either of them ceases to be a primary U.S. government securities dealer in the United States of America (“Primary
Treasury Dealer”), in which case the Company will substitute therefor another Primary Treasury Dealer, (2) a Primary Treasury Dealer selected by Mitsubishi UFJ Securities (USA), Inc. and (3) two other Primary Treasury Dealers selected
by the Company. 
 “Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer
and any redemption date, the average, as determined by the Quotation Agent, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Quotation Agent by
such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third business day preceding such redemption date. 

“Treasury Rate” means, with respect to any redemption date, the rate per annum equal to the semi-annual equivalent yield
to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such redemption date. 

The Indenture contains provisions for defeasance at any time of (i) the entire indebtedness of this Note and (ii) the
Company’s obligations under the Indenture and this Note with respect to certain covenants and related Events of Default, upon compliance by the Company with certain conditions set forth in the Indenture. 

If an Event of Default with respect to the Notes shall occur and be continuing, the principal of this Note may be declared due and
payable in the manner and with the effect provided in the Indenture. 
 The Indenture permits, with certain exceptions as
therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the securities of each series to be affected under the Indenture at any time by the Company and the Trustee
with the consent of the Holders of a majority in aggregate principal amount of the securities at the time outstanding of all series to be affected, considered as one class. The Indenture contains provisions permitting the Holders of a majority in
aggregate principal amount of the securities of any series at the time outstanding, on behalf of the Holders of all securities of such series, to waive certain past defaults or Events of Default under the Indenture, and their consequences. Any such
consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued in exchange, substitution or upon the registration or transfer hereof, irrespective of
whether or not notation of such consent or waiver is made upon this Note. 
 No reference herein to the Indenture and no
provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of (and premium, if any) and interest on this Note at the times, place and rate, and in the
coin or currency, herein provided. 

  
 A-3

 This Note is issuable as a registered Note only, in the minimum denomination of $2,000 and
integral multiples of $1,000 in excess thereof. 
 As provided in the Indenture, this Note is transferable by the registered
Holder hereof in person or by his attorney duly authorized in writing on the books of the Company at the office or agency to be maintained by the Company for that purpose. Upon any registration of transfer, a new registered Note or Notes, of
authorized denomination or denominations, and in the same aggregate principal amount, will be issued to the transferee in exchange therefor. 
 The Company, the Trustee, any paying agent and any Authenticating Agent may deem and treat the registered Holder hereof as the absolute owner of this Note (whether or not this Note shall be overdue) for
the purpose of receiving payment of or on account of the principal and premium, if any, and interest on this Note as herein provided and for all other purposes, and neither the Company nor the Trustee nor any paying agent nor any Authenticating
Agent shall be affected by any notice to the contrary. 
 No recourse shall be had for the payment of the principal of or any
premium or interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture or any indenture supplemental thereto, against any incorporator or against any past, present or future
stockholder, officer or member of the Board of Directors, as such, of the Company, whether by virtue of any constitution, state or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the
acceptance hereof and as part of the consideration for the issue hereof, expressly waived and released. 
 This Note shall be
governed by and deemed to be a contract made under, and construed in accordance with, the laws of the State of New York, and for all purposes shall be construed in accordance with the laws of the State of New York without regard to conflicts of law
principles thereof. 
 All terms used in this Note which are defined in the Indenture and not defined herein shall have the
meaning assigned to them in the Indenture. 
 This Note shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose until the certificate of authentication on the face hereof is manually signed by the Trustee. 

  
 A-4

 IN WITNESS WHEREOF, the Company has caused this instrument to be signed by the manual or
facsimile signatures of the Senior Vice President – Finance and Strategic Development and Chief Financial Officer and the Vice President – Investor Relations and Strategic Planning and Treasurer of the Company, and a facsimile of its
corporate seal to be affixed or reproduced hereon. 
  

			
	KANSAS CITY POWER & LIGHT COMPANY
		
	By:	 	 
		 	 Name:

Title:

 (SEAL) 
  

			
	By:	 	 
		 	 Name:

Title:

  

			
	Dated:                           
      	 	
	ATTEST:	 	
		
	  	 	 

  

			
	 TRUSTEE’S CERTIFICATE OF AUTHENTICATION
 This is one of the Notes of the series designated herein issued under the Indenture described herein.
  

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,

as Trustee

		
	By:	 	 
		 	 Authorized Signatory

Dated:                     

  
 A-5

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