Document:

EX-4.1

 Exhibit 4.1 

PERFORMANCE SHARE UNIT PLAN FOR DESIGNATED
LEADERS OF 
 CGI INC. AND ITS SUBSIDIARIES

  

	1.	 Definitions 

For the purposes hereof and unless the context otherwise requires: 

 

	 	1.1	 “Award” means the PSU grant made to a Participant under the Plan on an Award Date, evidenced by an
Award Letter; 

  

	 	1.2	 “Award Date” means the date on which an Award is made, as set forth in the Award Letter;

  

	 	1.3	 “Award Letter” has the meaning given to that expression in Section 5 hereof;

  

	 	1.4	 “Blackout Period” means any period during which a policy of the Company prevents a Participant
from trading in securities of the Company; 

  

	 	1.5	 “Board” means the Board of Directors of the Company; 

 

	 	1.6	 “Business Day” means a day of the week other than a Saturday, Sunday or a legal holiday recognized
as such either in the Province of Quebec, or in the place where the concerned Participant is normally resident; 

  

	 	1.7	 “CGI Fiscal Year” means the 12-month financial reporting
period of the Company; 

  

	 	1.8	 “CGI Shares” means the Class A subordinate voting shares in the share capital of the Company;

  

	 	1.9	 “Committee” means the Human Resources Committee of the Board; 

 

	 	1.10	 “Company” means CGI Inc. and any successor corporation thereto; 

 

	 	1.11	 “Control Person” has the meaning given to that expression in the Securities Act
(Québec); 

  

	 	1.12	 “Determination Date” has the meaning given to that expression in Section 6 hereof;

  

	 	1.13	 “Earning Period” has the meaning given to that expression in Section 6 hereof;

  

	 	1.14	 “Employee” means any regular employee of the Company or of any of its Subsidiaries;

  

	 	1.15	 “Estate” has the meaning given to that expression in Paragraph 8.2 hereof; 

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	 	1.16	 “Expiry Date” means, in respect of an Award, the Business Day preceding the last day of the
calendar year which is three years following the end of the CGI Fiscal Year during which the Award is made; 

  

	 	1.17	 “Participant” means any Employee to whom an Award is made by the Board; 

 

	 	1.18	 “Plan” means this Performance Share Unit Plan for the Designated Leaders of the Company and its
Subsidiaries, including any Annex thereto; 

  

	 	1.19	 “Plan Trustee” means such persons or entities as may be designated from time to time by the
Company; 

  

	 	1.20	 “PSU” means a performance share unit of the Company which represents the right of a Participant,
once such unit is earned and has vested in accordance with the Award Letter and this Plan, to receive one CGI Share for each such performance share unit; 

  

	 	1.21	 To “Retire” or “Retirement” means that the Participant has ceased to be a regular
Employee, provided that: 

  

	 	–	 	 the Participant is either no longer gainfully employed; or 

 

	 	–	 	 following the cessation of employment, the Participant is gainfully employed and pursues activities in a
business that is not a direct competitor of the Company or one of its Subsidiaries; and 

  

	 	–	 	 the Founder and Executive Chairman of the Board, the President and Chief Executive Officer or the most senior
officer of the Company responsible for Human Resources confirms in writing the Participant’s retirement; 

  

	 	1.22	 “Settlement Date” means the date upon which the Participant’s earned and vested PSUs are
settled; 

  

	 	1.23	 “Subsidiary” means an entity that: (i) is a “related entity” of the Company within
the meaning of National Instrument 45-106, as adopted by the Canadian Securities Administrators and as amended from time to time; and (ii) is designated as a “Subsidiary” by the Founder and
Chairman of the Board of the Company or the President and Chief Executive Officer of the Company; 

  

	 	1.24	 “Tax-Related Items” means any federal, state, provincial,
local and/or foreign tax items, including income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items, related to participation in the Plan and legally
applicable to Participant (including any employer liability for such items that the Company has determined to be applicable to Participant); 

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	 	1.25	 “Vesting Date” means, in respect of an Award, the date when the Award is fully and completely
vested as determined by the Board in accordance with Section 7; and 

  

	 	1.26	 “Vesting Schedule” means the schedule established in an Award Letter under which an Award vests in
respect of a Participant, provided a Participant will be required to remain an Employee continuously from the Award Date through the relevant Vesting Date, except as otherwise provided under Section 8. 

 

	2.	 Purpose of the Plan 

The Plan has been established to assist the Company in attracting, retaining and motivating Employees and to promote the
success of the Company’s business and align the interests of the Employees with those of the Company shareholders. 
  

	3.	 Administration 

The Plan is governed by the Board. The Committee makes recommendations to the Board in relation to Awards granted under the
Plan. The Board has the ultimate and sole power and authority to (i) approve Awards granted under the Plan, (ii) determine the terms and conditions of Awards granted under the Plan, (iii) prescribe, amend and rescind rules and
regulations relating to the Plan and establish sub-plans under the Plan for the purpose of complying or facilitating compliance with applicable laws or customary business practice or qualifying for specific
tax treatment, (iv) interpret the terms of the Plan and Awards that have been granted under the Plan and (v) exercise such powers and perform such acts as the Board deems necessary or desirable to promote the best interests of the Company
which are not in conflict with the provisions of the Plan. The determinations, designations, decisions and interpretations of the Board are binding and final. Management of the Company is responsible for the day-to-day administration of the Plan. 
  

	4.	 Grant of Awards 

The Board shall determine the number of PSUs granted under an Award to a Participant. 

The Board shall further establish at the time of each grant of an Award, within the restrictions set forth in the Plan, the
Award Date, the Vesting Date, the Vesting Schedule, any performance objectives that must be attained for the Award to be earned, and other particulars applicable to an Award granted hereunder. The Committee may make recommendations to the Board in
respect of Awards. 
  

	5.	 Award Letter 

Upon the grant of an Award, the Company shall deliver to the Participant, a letter containing the terms and conditions of the
Award (the “Award Letter”). 

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	6.	 Earning Period 

The PSUs granted to a Participant may be subject to one or more performance objectives. Such performance objectives and the
period of time over which they are calculated (the “Earning Period”), if any, shall be determined by the Board in its sole discretion. The level of attainment of the performance objectives shall be determined on the date determined by the
Board in its sole discretion (the “Determination Date”). Upon the Determination Date, the percentage of PSUs identified in the Award Letter as corresponding to the level of attainment of the performance objectives shall become earned and
eligible to vest in accordance with the Vesting Schedule, subject to the terms and conditions of the applicable Award Letter and this Plan. The Company shall confirm to the Participant the number of PSUs earned by such Participant following the
relevant Determination Date. All PSUs subject to one or more performance objectives not earned in accordance with this Section shall expire and the Participant shall not have any rights or entitlements whatsoever in respect of any such PSUs. The
Committee may make recommendations to the Board in respect of performance objectives and their level of attainment. 
  

	7.	 Vesting Schedule and Vesting Date 

Subject to the provisions of Section 8, the Vesting Schedule and the Vesting Date of an Award will be determined by the
Board at the time of the grant, provided that such Vesting Schedule or Vesting Date may not extend beyond the Expiry Date. 
  

	8.	 Early Expiry of Awards 

Unless otherwise determined by the Board on or after the Award Date, Awards, or part thereof, shall expire, as the case may
be, in the following events and manner: 
  

	 	8.1	 If the employment of a Participant terminates for any reason other than those contemplated under Paragraphs
8.2 and 8.3 on or before the Vesting Date of an applicable Award, any unvested PSUs (including, for greater certainty, any earned or unearned PSUs) outstanding on the Participant’s termination of employment shall expire on such date and the
Participant shall not have any rights or entitlements whatsoever in respect of any such PSUs. 

  

	 	8.2	 Upon the death of a Participant, any PSUs that have been earned as of the applicable Determination Date for
such Award in accordance with Section 6 but remain unvested shall vest automatically upon the Participant’s death, and the estate, succession, heirs or legal representatives of a deceased Participant (hereafter referred to as the
“Estate”) shall receive, in accordance with the provisions of the Award Letter and of Section 13, as soon as practicable after the date of death, but no later than the end of the calendar year following the calendar year in which the
Participant died, the number of CGI Shares represented by such earned and vested PSUs of such Participant. Any unearned PSUs outstanding at 

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the time of the Participant’s death shall expire on such date and the Estate shall not have any rights or entitlements whatsoever in respect of any such PSUs. 

 

	 	8.3	 If a Participant Retires, any PSUs that have been earned as of the applicable Determination Date for such
Award in accordance with Section 6 but remain unvested shall vest automatically upon the Participant’s date of Retirement and the Participant shall receive, in accordance with the provisions of the Award Letter and of Section 13,
within ninety days (90) days following the Participant’s date of Retirement, the number of CGI Shares represented by such earned and vested PSUs of such Participant. Any unearned PSUs outstanding at the time of the Participant’s
Retirement shall expire on such date and the Participant shall not have any rights or entitlements whatsoever in respect of any such PSUs. 

  

	9.	 Purchase of CGI Shares in the Open Market 

 

	 	9.1	 Within ninety (90) days following an Award Date or such later date determined by the Company, a Plan
Trustee, upon notice and receipt of sufficient funds from the Company or Subsidiary, as applicable, shall cause to be purchased in the open market such number of CGI Shares as is equal to the lesser of (i) the number of PSUs comprised in the
Award, and (ii) the number of CGI Shares required to be purchased by a Plan Trustee to ensure that the aggregate number of CGI Shares held by a Plan Trustee is not less than the total number of PSUs then outstanding in respect of such Plan
Trustee’s aggregate Participants. 

  

	 	9.2	 Each Plan Trustee shall hold the CGI Shares in trust for the purposes of the Plan and in accordance with the
terms of the trust agreement between the Company or its Subsidiary, as applicable, and such Plan Trustee as may be amended, supplemented or replaced from time to time, and shall distribute the CGI Shares to Participants in accordance with the terms
of the Plan. 

  

	 	9.3	 No Participant or other person shall have any claim or right to receive CGI Shares on account of PSUs
credited to the applicable trust pursuant to the Plan until the Settlement Date. Under no circumstances shall PSUs entitle a Participant to exercise any voting rights or other rights attaching to the ownership of CGI Shares so long as the CGI Shares
remain in the possession of a Plan Trustee. Except in accordance with the terms of its trust agreement or as otherwise agreed with the Company, a Plan Trustee shall not vote the CGI shares held in trust for the purposes of the Plan.

  

	 	9.4	 The Company may establish or cause to be established one or more trusts under the Plan as may be required to
meet applicable law or for any other purpose. Notwithstanding anything to the contrary under this Plan, neither the Company nor any of its Subsidiaries shall be required to fund a trust for purposes of settling any Awards granted under the Plan, if
the funding of such trust could result in a breach of applicable law, result in negative tax consequences for the Company, any of its Subsidiaries or any Participant, or be administratively burdensome. 

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	10.	 Settlement of PSUs 

 

	 	10.1	 Except as otherwise provided in Section 8, or in the applicable Award Letter, PSUs earned in accordance
with Section 6 and vested in accordance with Section 7 shall be settled within thirty (30) days following the Vesting Date, provided however that (i) if the Participant is not a Control Person and the Settlement Date occurs
during a Blackout Period, the Settlement Date will be automatically deferred to the first Business Day immediately following the last day of the Blackout Period, provided such deferral would not otherwise violate any applicable law as determined by
the Company in its sole discretion, and (ii) if the Participant is a Control Person and the Settlement Date occurs during a Blackout Period, the Settlement Date will be automatically deferred to the first Business Day immediately following the
later of (A) the last day of the Blackout Period and (B) if applicable, the expiry of any regulatory notice period (including pursuant to any required SEDAR filing on Form 45-102F1) required to be
filed by the Control Person in respect of the sale of the underlying CGI Shares, provided such deferral would not otherwise violate any applicable law as determined by the Company in its sole discretion. Notwithstanding (i) and (ii) above, no
Settlement Date can be deferred beyond the Expiry Date of the PSUs. Accordingly, all vested PSUs not settled before the Expiry Date will be automatically settled on the Expiry Date. 

 

	 	10.2	 Notwithstanding any provision in the Plan or any Award Letter to the contrary, the Company may, in its sole
discretion, settle an Award (or any portion thereof) in the form of a cash payment to the extent settlement in CGI Shares (i) could result in a breach of applicable law, (ii) could result in negative tax consequences for the Company, any
of its Subsidiaries or any Participant, (iii) would require the Participant, the Company or its applicable Subsidiary to obtain the approval of any governmental and/or regulatory body in the Participant’s country of residence (or country
of employment, if different), or (iv) is administratively burdensome as determined by the Board in its sole discretion. 

  

	11.	 Assignment 

The rights of a Participant under the Plan and the Award Letter may not be assigned, pledged or encumbered nor any interest
therein other than by will or under the law of succession. 
  

	12.	 Effect of any Amendment to the Share Capital 

In the event of any change in the number of outstanding CGI Shares following any share dividend, subdivision, reorganization,
merger, consolidation, combination or exchange of shares or any other similar corporate change, the Board shall make an equitable adjustment to the number of PSUs held in the record in respect to a Participant or to the

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class of shares underlying the PSUs. Such adjustment shall be final and binding for the purposes of the Plan. 
  

	13.	 Tax-Related Items 

 

	 	13.1	 Regardless of any action taken by the Company or a Subsidiary with respect to the Tax-Related Items, the Participant is ultimately responsible for the Tax- Related Items. The Company does not make any representation or undertaking regarding the treatment of
any Award granted under the Plan and any Tax-Related Items and does not commit to and is under no obligation to structure the Plan or any Award granted under the Plan to reduce or eliminate a
Participant’s liability for Tax-Related Items or achieve any particular tax result. 

  

	 	13.2	 Prior to distributing CGI Shares from the Plan to a Participant, a Plan Trustee shall sell in the open
market, a sufficient number of the CGI Shares underlying the Participant’s Award so that the proceeds of the sale of the CGI Shares are sufficient to satisfy any withholding obligation for Tax-Related
Items, and remit the balance of the CGI Shares underlying the Participant’s Award to the Participant. For greater certainty, CGI Shares sold in the open market by the Plan Trustee remain in the possession of the Plan Trustee until sold and are
not sold by the Plan Trustee as agent for the Participant. In determining the number of CGI Shares to be sold to satisfy the withholding obligation for Tax-Related Items, minimum or maximum withholding rates
for the Participant’s jurisdiction may be considered. In the event a minimum rate is utilized, the Participant may be required to pay additional Tax-Related Items directly to the relevant tax authority.
In the event a maximum rate is utilized such that more CGI Shares than needed to satisfy the withholding obligation for Tax-Related Items are sold, the Participant may receive a refund in cash, either from the
Company or the relevant Subsidiary (or, if permitted by applicable law, through seeking a refund from the relevant tax authority) and the Participant will not have any entitlement to the equivalent amount in CGI Shares. 

 

	 	13.3	 The Company or any Subsidiary, as appropriate, shall have the authority and the right to take such other
action as may be necessary in the opinion of the Company or the relevant Subsidiary to satisfy the Company’s or a Subsidiary’s withholding obligation for Tax-Related Items, including the right to
withhold the Tax-Related Items from Participant’s salary or other cash compensation paid to Participant by the Company or one of its Subsidiaries. 

 

	14.	 Record Keeping 

The Company shall cause individual records to be maintained for each Participant which shall record the number of PSUs
awarded, earned, vested and settled from time to time. 

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	15.	 Downward Fluctuation in the Price of Shares 

No amount will be paid to, or in respect of, a Participant under the Plan, or pursuant to any other arrangement, to compensate
a Participant for a downward fluctuation in the price of CGI Shares, nor will any other form of benefit be conferred upon, or in respect of, a Participant for such purpose. 
  

	16.	 Expenses 

All expenses relating to the administration of the Plan shall be borne by the Company. The Company will not be liable for any
subsequent expenses or costs once PSUs, if any, have been settled for the benefit of a Participant. In addition, brokerage fees or commissions incurred by a Plan Trustee or any other third party administrator mandated by the Company in connection
with the sale of CGI Shares made on behalf and for the account of a Participant, including sales made to satisfy any withholding obligation for Tax-Related Items pursuant to Section 13, shall be borne by
the Participant and shall be deducted from the proceeds of such sale. 
  

	17.	 No Acquired Rights 

The Plan and a Participant’s participation in the Plan do not generate any acquired rights in favor of any Participant,
and do not constitute an express or implied term of nor in any manner form part of the Participant’s employment contract with the Company or any of its Subsidiaries. 
  

	18.	 Governing Laws 

The Plan and the Award Letter shall be governed by the laws applicable in the Province of Quebec, Canada and any dispute
relating to their interpretation and application shall be submitted to the tribunals of the district of Montreal, Québec. 
  

	19.	 Amendment and Termination 

The Board, on the recommendation of the Committee, may, at any time and from time to time, amend, suspend or terminate the
Plan, in whole or in part, or amend any term of any issued and outstanding Awards (including, without limitation, the earning, vesting and the expiry of an outstanding Award); provided that in the case of issued and outstanding Awards, the consent
or the deemed consent of the concerned Participants shall be obtained in the event that the amendment materially prejudices the Participants’ rights. 

Approved by the Board of Directors on September 26, 2017. 

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 ANNEX TO THE 

PERFORMANCE SHARE UNIT PLAN FOR DESIGNATED
LEADERS OF 
 CGI INC. AND ITS SUBSIDIARIES

 FOR U.S. PARTICIPANTS 

This Annex to the Performance Share Unit Plan for the Designated Leaders of the Company and its Subsidiaries applies to
Participants who are either residents of the United States or are subject to U.S. federal income tax (such Participants, the “U.S. Participants” and this annex, the “U.S. Annex”). All capitalized terms but not defined in this
U.S. Annex shall have the meanings ascribed to them in the Plan. 
 Notwithstanding any provision of the Plan or Award
Letter to the contrary, in the event that any settlement or payment or an Award to a U.S. Participant is made upon, or as a result of the U.S. Participant’s termination of employment, and the U.S. Participant is a “specified employee”
(as that term is defined under Section 409A of the U.S. Internal Revenue Code of 1986, as amended (the “Code”)) at the time the U.S. Participant becomes entitled to any such settlement or payment, and provided further that such
settlement or payment does not otherwise qualify for an applicable exemption from Code Section 409A, then no such settlement or payment shall be made to the U.S. Participant under this Plan until the date that is the earlier to occur of:
(i) the U.S. Participant’s death, or (ii) six (6) months and one (1) day following the U.S. Participant’s termination of employment (the “Delay Period”). Any settlement or payment which the U.S. Participant would
otherwise have received during the Delay Period shall be made to the U.S. Participant in a lump sum on the date that is six (6) months and one (1) day following the effective date of the termination. For purposes of the Plan and any
applicable Award Letter, the terms “termination of employment,” “cessation of employment,” and variations thereof as used in the Plan or the applicable Award Letter are intended to mean a termination of employment that
constitutes a “separation from service” as such term is defined under Code Section 409A. 
 The settlement or
payment of any Award may not be accelerated except to the extent permitted by Code Section 409A. 
 Notwithstanding any
provision of the Plan or Award Letter to the contrary, the Company may adopt such amendments to the Plan and/or Award Letter or adopt other policies and procedures (including amendments, policies and procedures with retroactive effect), or take any
other actions, in each case without the consent of the U.S. Participant, that the Company determines are necessary or appropriate to comply with the requirements of Code Section 409A and related U.S. Treasury regulations and guidance issued
thereunder. 
 The Plan and the Awards granted hereunder are intended to be exempt from or otherwise comply with Code
Section 409A, to the extent applicable thereto. Notwithstanding any provision of Plan or Award Letter to the contrary, the Plan and the Award shall be interpreted and construed consistent with this intent. Notwithstanding the foregoing, the
Company shall not be required to assume any increased economic burden in connection therewith. Although the Company intends to administer the Plan so that the Plan and Awards granted hereunder comply with the requirements of Code Section 409A,
to the extent applicable thereto, the Company does 

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not represent or warrant that the Plan or the Awards granted hereunder will comply with Code Section 409A or any other provision of federal, state, local, or any other applicable law. 

Neither the Company nor its Subsidiaries or affiliates, nor their respective directors, officers, employees or advisers shall
be liable to any U.S. Participant (or any other individual claiming a benefit through the U.S. Participant) for any tax, interest, or penalties the U.S. Participant may owe as a result of participation in the Plan, and the Company and its
Subsidiaries and affiliates shall have no obligation to indemnify or otherwise protect any U.S. Participant from the obligation to pay any taxes pursuant to Code Section 409A or otherwise.EX-4.2

 Exhibit 4.2 
  

 
  

SOUTHWESTERN ENERGY COMPANY 

as Issuer 
 the Security
Guarantors named herein 
 4.750% SENIOR NOTES DUE 2032 

FOURTH 
 SUPPLEMENTAL

 INDENTURE 

Dated as of December 22, 2021 

REGIONS BANK, 
 as
Trustee 
  
  

 

 TABLE OF CONTENTS 

 

							
	 	  	 	  	Page	 
	ARTICLE I	  			
		
	GENERAL TERMS AND CONDITIONS OF THE NOTES	  			
	Section 1.01	  	Establishment	  	 	1	 
	ARTICLE II	  			
		
	DEFINITIONS AND INCORPORATION BY REFERENCE	  			
	Section 2.01	  	Definitions	  	 	2	 
	Section 2.02	  	Other Definitions	  	 	15	 
	ARTICLE III	  			
		
	THE NOTES	  			
	Section 3.01	  	Form	  	 	15	 
	ARTICLE IV	  			
		
	REDEMPTION AND PREPAYMENT	  			
	Section 4.01	  	Optional Redemption	  	 	15	 
	Section 4.02	  	Special Mandatory Redemption	  	 	16	 
	ARTICLE V	  			
		
	ADDITIONAL COVENANTS	  			
	Section 5.01	  	Limitations on Liens	  	 	16	 
	Section 5.02	  	Restriction of Sale-Leaseback Transactions	  	 	17	 
	Section 5.03	  	Future Security Guarantors	  	 	17	 
	Section 5.04	  	Offer to Repurchase Upon Change of Control Event	  	 	17	 

  
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	ARTICLE VI	  			
		
	CONSOLIDATION, MERGER OR SALE OF ASSETS	  			
		
	ARTICLE VII	  			
		
	SECURITY GUARANTEES	  			
	Section 7.01	  	Security Guarantees	  	 	19	 
	Section 7.02	  	Release of Guarantees	  	 	19	 
		
	ARTICLE VIII	  			
		
	EVENTS OF DEFAULT	  			
	Section 8.01	  	Applicability	  	 	20	 
		
	ARTICLE IX	  			
		
	MISCELLANEOUS	  			
	Section 9.01	  	Integral Part	  	 	20	 
	Section 9.02	  	Adoption, Ratification and Confirmation	  	 	20	 
	Section 9.03	  	Counterparts	  	 	20	 
	Section 9.04	  	The Trustee	  	 	20	 
	Section 9.05	  	Governing Law	  	 	20	 

 EXHIBIT A: Form of Note 

  
 ii 

 FOURTH SUPPLEMENTAL INDENTURE dated as of December 22, 2021 (this “Fourth
Supplemental Indenture”) among SOUTHWESTERN ENERGY COMPANY, a Delaware corporation (the “Company”), the Security Guarantors party hereto and Regions Bank, as trustee (the “Trustee”). 

W I T N E S S E T H: 

WHEREAS, the Company has heretofore entered into an Indenture, dated as of August 30, 2021 (the “Base Indenture”), with
Regions Bank, as trustee; 
 WHEREAS, the Base Indenture, as supplemented by this Fourth Supplemental Indenture, is herein called the
“Indenture”; 
 WHEREAS, under the Base Indenture, a new series of Securities may at any time be established by the Board
of Directors of the Company in accordance with the provisions of the Base Indenture and the form and terms of such series may be established by a supplemental indenture executed by the Company and the Trustee; 

WHEREAS, the Company proposes to create under the Indenture a new series of Securities; 

WHEREAS, the Security Guarantors party hereto have determined that it is advisable and in their best interests to enter into this Fourth
Supplemental Indenture in order to provide Security Guarantees with respect to the new series of Securities; 
 WHEREAS, additional
Securities of other series hereafter established, except as may be limited in the Base Indenture as at the time supplemented and modified, may be issued from time to time pursuant to the Base Indenture as at the time supplemented and modified; and

 WHEREAS, all conditions necessary to authorize the execution and delivery of this Fourth Supplemental Indenture and to make it a valid
and binding obligation of the Company have been done or performed. 
 NOW, THEREFORE, in consideration of the agreements and obligations set
forth herein and for other good and valuable consideration, the sufficiency of which is hereby acknowledged, the parties hereto hereby agree as follows: 

ARTICLE I 

GENERAL TERMS AND CONDITIONS OF THE NOTES 

Section 1.01 Establishment. 

(a) There is hereby established a new series of Securities to be issued under the Indenture, to be designated as the 4.750% Senior Notes due
2032 (the “Notes”). 

  
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 (b) There are to be authenticated and delivered $1,150,000,000 principal amount of Notes on
the date hereof, and from time to time thereafter there may be authenticated and delivered an unlimited principal amount of additional Notes as Additional Securities. 

(c) The Notes shall be issued initially in the form of one or more Global Securities, in substantially the form set out in
Exhibit A hereto. The interest rate, Interest Payment Dates, record dates and maturity date of the Notes shall be as set forth in such form, the terms of which are incorporated herein by reference. The Depositary with
respect to the Notes shall be The Depository Trust Company. 
 (d) Each Note shall be dated the date of authentication thereof and shall
bear interest from the date of original issuance thereof or from the most recent date to which interest has been paid or duly provided for. 

(e) If and to the extent that the provisions of the Base Indenture are duplicative of, or in contradiction with, the provisions of this Fourth
Supplemental Indenture, the provisions of this Fourth Supplemental Indenture shall govern. 
 ARTICLE II 

DEFINITIONS AND INCORPORATION BY REFERENCE 

Section 2.01 Definitions. All capitalized terms used herein and not otherwise defined below shall have the meanings ascribed
thereto in the Base Indenture. The following are additional definitions used in this Fourth Supplemental Indenture and shall, with respect to the Notes, replace any inconsistent definitions in the Base Indenture: 

“ACNTA” means (without duplication), as of the date of determination: 

(a) the sum of: 

(i) discounted future net revenue from proved crude oil and natural gas reserves of the Company and its Subsidiaries calculated
in accordance with SEC guidelines before any state or federal income taxes, as estimated in a reserve report prepared as of the end of the Company’s most recently completed fiscal year, which reserve report is prepared or audited by independent
petroleum engineers as to at least 80% of the value of the reserves covered thereby, provided, however, that in lieu of using commodities prices and costs determined under SEC guidelines in such reserve report and for all purposes of this
definition, such discounted future net revenue shall be adjusted using NYMEX prices after giving further effect to commodity derivatives contracts in effect on the date of determination and estimates of costs in light of prevailing market conditions
in effect as of the date of determination, in each case as determined in good faith by the Company, as increased by, as of the date of determination, the discounted future net revenue before any state or federal income taxes of: 

(A) estimated proved crude oil and natural gas reserves of the Company and its Subsidiaries attributable to acquisitions
consummated since the date of such year-end reserve report, and 

  
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 (B) estimated proved crude oil and natural gas reserves of the Company and
its Subsidiaries attributable to extensions, discoveries and other additions and upward determinations of estimates of proved crude oil and natural gas reserves (including previously estimated development costs incurred during the period and the
accretion of discount since the prior year-end) due to exploration, development or exploitation, production or other activities which reserves were not reflected in such
year-end reserve report (as adjusted for pricing and costs as set forth above), 
 in the case of
the determination made under each of clauses (A) and (B) above, calculated in accordance with SEC guidelines (except utilizing commodities prices and costs as set forth above) before any state or federal income taxes, and as decreased by,
as of the date of determination, the discounted future net revenue before any state or federal income taxes attributable to: 

(C) estimated proved crude oil and natural gas reserves of the Company and its Subsidiaries reflected in such year-end reserve report (as adjusted for pricing and costs as set forth above) produced or disposed of since the date of such year-end reserve report, and 

(D) reductions in the estimated proved crude oil and natural gas reserves of the Company and its Subsidiaries reflected in
such year-end reserve report (as adjusted for pricing and costs as set forth above) since the date of such year-end reserve report attributable to downward
determinations of estimates of proved crude oil and natural gas reserves due to exploration, development or exploitation, production or other activities conducted or otherwise occurring since the date of such
year-end reserve report, in each case calculated in accordance with SEC guidelines (except utilizing the commodities prices and costs as set forth above) before any state or federal income taxes; 

provided, however, that, in the case of each of the determinations made pursuant to clauses (A) through (D) above, such
increases and decreases shall be as estimated in good faith by the Company; 
 (ii) the capitalized costs that are
attributable to crude oil and natural gas properties of the Company and its Subsidiaries to which no proved crude oil and natural gas reserves are attributed, based on the Company’s books and records as of a date no earlier than the date of the
Company’s latest annual or quarterly financial statements; 
 (iii) the Net Working Capital, excluding unrealized gains
and losses related to unsettled derivatives, on a date no earlier than the date of the Company’s latest annual or quarterly financial statements; and 

  
 3 

 (iv) the greater of (I) the net book value on a date no earlier than
the date of the Company’s latest annual or quarterly financial statements and (II) the appraised value, as estimated by independent appraisers within the immediately preceding 12 months, of other tangible assets of the Company and its
Subsidiaries (provided that the Company shall not be required to obtain such an appraisal of such assets if no such appraisal has been performed); 

minus 
 (b) to the extent not otherwise
taken into account in the immediately preceding clause (a), the sum of: 
 (i) minority interests; 

(ii) any net gas or other balancing liabilities of the Company and its Subsidiaries reflected in the Company’s latest
audited consolidated financial statements; 
 (iii) the discounted future net revenue, calculated in accordance with SEC
guidelines (except utilizing the commodities prices and costs set forth above) before any state or federal income taxes, attributable to reserves that are required to be delivered to third parties to fully satisfy the obligations of the Company and
its Subsidiaries with respect to Volumetric Production Payments on the schedules specified with respect thereto; and 
 (iv)
the discounted future net revenue, calculated in accordance with SEC guidelines before any state or federal income taxes, attributable to reserves subject to Dollar Denominated Production Payments that, based on the estimates of production included
in determining the discounted future net revenue specified in the immediately preceding clause (a)(i) (except utilizing the commodities prices and costs set forth above), would be necessary to satisfy fully the obligations of the Company and
its Subsidiaries with respect to Dollar Denominated Production Payments on the schedules specified with respect thereto. 
 For the avoidance
of doubt, references in this definition to “oil and natural gas reserves” shall include any reserves attributable to natural gas liquids and other hydrocarbons. 

“Applicable Premium” means, with respect to any Note at any Redemption Date, the greater of: 

(1) 1.0% of the principal amount of the Note; or 

(2) the excess of: 
  

	 	(a)	 the present value at such Redemption Date of the Redemption Price of the Note at February 1, 2027 (such
Redemption Price being set forth in the table in Section 5 of the form of Note attached hereto as Exhibit A) plus (y) all required interest payments due on the Note through February 1, 2027 (in each case excluding accrued but
unpaid interest to the Redemption Date), computed using a discount rate equal to the applicable Treasury Rate as of such Redemption Date plus 50 basis points discounted to the Redemption Date on a semi-annual basis (assuming a 360 day year
consisting of twelve 30 day months); over 

  
 4 

 the principal amount of the Note. 

“Applicable Procedures” means, with respect to any transfer or exchange of or for, or any tender or surrender of, beneficial
interests in any Global Security, the rules and procedures of the Depositary, Euroclear and Clearstream Luxembourg that apply to such transfer, exchange, tender or surrender. 

“Attributable Debt” means, in respect of a Sale and Leaseback Transaction, as at the time of determination, the present value
(discounted at the interest rate borne by the Notes, compounded semi-annually) of the total obligations of the lessee for rental payments during the remaining term of the lease included in such Sale and Leaseback Transaction (including any period
for which such lease has been extended); provided, however, that if such Sale and Leaseback Transaction results in a Finance Lease Obligation, the amount of indebtedness represented thereby will be determined in accordance with the definition
of “Finance Lease Obligation.” 
 “Borrowing Base” means, with respect to borrowings under the Revolving Credit
Agreement and any amendment to and/or modification or replacement thereof in the form of a reserve-based borrowing base credit facility, in each case with lenders that include commercial banks regulated by the U.S. Office of the Comptroller of the
Currency, the maximum amount determined or re-determined by the lenders thereunder as the aggregate lending value to be ascribed to the Oil and Gas Properties and other assets of the Company and its
subsidiaries against which such lenders are prepared to provide loans, letters of credit or other indebtedness to the Company and its subsidiaries under such Revolving Credit Agreement, using customary practices and standards for determining
reserve-based loans and which are generally applied to borrowers in the Oil and Gas Business by commercial lenders, as determined semi-annually during each year and/or on such other occasions as may be required or provided for by such Revolving
Credit Agreement, and which is based upon, inter alia, the review by such lenders of the hydrocarbon reserves, royalty interests and assets and liabilities of the Company and its subsidiaries. 

“Capital Stock” means, as to any Person, any and all shares, units of beneficial interests, rights to purchase, warrants,
options, participations or other equivalents of or interests in (however designated) equity of such Person, including any preferred stock, but excluding any debt securities or other indebtedness convertible into such equity. 

“Change of Control” means the occurrence of any of the following: 

(1) any “person,” as such term is used in Section 13(d)(3) of the Exchange Act, becoming the beneficial owner,
directly or indirectly, of more than 50% of the voting power of the Voting Stock of the Company; provided that a transaction in which the Company becomes a Subsidiary of another Person shall not constitute a Change of

  
 5 

 
Control if, immediately following such transaction, (a) the Persons who were stockholders of the Company immediately prior to such transactions continue to beneficially own, directly or
indirectly through one or more intermediaries, 50% or more of the voting power of the outstanding Voting Stock of such other Person of whom the Company has become a Subsidiary and (b) no Person other than such other Person of whom the Company
has become a Subsidiary beneficially owns, directly or indirectly, more than 50% of the voting power of the Voting Stock of the Company; 

(2) the merger or consolidation of the Company with or into another Person or the merger of another Person with or into the
Company, or the sale, lease or other disposition of all or substantially all the assets of the Company (determined on a consolidated basis) to another Person, other than (i) (A) a transaction following which in the case of a merger or
consolidated transaction, holders of securities that represented 100% of the Voting Stock of the Company immediately prior to such transaction (or other securities into which such securities are converted as part of such merger or consolidation
transaction) own directly or indirectly at least a majority of the voting power of the Voting Stock of the surviving Person (or any parent thereof) in such merger or consolidation transaction immediately after such transaction or (B) a
transaction that would be permitted under the proviso to clause (1) of this definition of “Change of Control”; or (ii) in the case of a sale, lease or other disposition of all or substantially all assets transaction, a
transaction in which each transferee becomes an obligor in respect of the Notes and a Subsidiary of the transferor of such assets; or 

(3) the adoption of a plan relating to the liquidation or dissolution of the Company. 

“Change of Control Event” means the occurrence of either of the following: 

(1) if the Notes do not have an Investment Grade Rating from both of the Ratings Agencies on the first day of the Trigger
Period, the Notes are downgraded by at least one rating category (e.g., from BB+ to BB or Ba1 to Ba2) from the applicable rating of the Notes on the first day of the Trigger Period by both of the Ratings Agencies on any date during the Trigger
Period; or 
 (2) if the Notes have an Investment Grade Rating from both of the Ratings Agencies on the first day of the
Trigger Period, the Notes cease to have an Investment Grade Rating by both of the Ratings Agencies on any date during the Trigger Period; 
 provided,
however, that for so long as any of the Company’s Existing Senior Securities are outstanding, if the Company is required to offer to purchase any such Existing Senior Securities as a result of the occurrence of a Change of Control (as
defined in such Existing Senior Securities), then the occurrence of such Change of Control shall constitute a Change of Control Event. For purposes of the foregoing, “Existing Senior Securities” means, to the extent then
outstanding, the Company’s 4.10% Senior Notes due 2022, the Company’s 4.95% Senior Notes due 2025, the Company’s 7.50% Senior Notes due 2026, the Company’s 7.75% Senior Notes due 2027, the Company’s 8.375% Senior Notes due
2028, the Company’s 5.375% Senior Notes due 2029 and the Company’s 5.375% Senior Notes due 2030. 

  
 6 

 If a Ratings Agency is not providing a rating for the Notes at the commencement of the
Trigger Period, a Change of Control Event shall be deemed to have occurred with respect to such Ratings Agency as a result of the related Change of Control. Notwithstanding the foregoing, no Change of Control Event will be deemed to have occurred in
connection with any particular Change of Control unless and until such Change of Control has actually occurred. 
 “Change of
Control Notice” means notice of a Change of Control Offer made pursuant to Section 5.04, which shall be mailed first-class, postage prepaid (or, when the Notes are Global Securities, given pursuant to the
applicable procedures of the applicable Depositary), to each record Holder of Notes as shown on the Note Register within 30 days following a Change of Control Event, with a copy to the Trustee, which notice shall govern the terms of the Change of
Control Offer and shall state: 
 (1) that a Change of Control Event has occurred and that pursuant to
Section 5.04, such Holder has the right to require the Company to repurchase all or any part of such Holder’s Notes for the Change of Control Payment; 

(2) the Change of Control Payment Date; 

(3) that any Notes not properly tendered will remain outstanding and continue to accrue interest; 

(4) that, unless the Company defaults in the payment of the Change of Control Payment with respect thereto, all Notes accepted
for payment pursuant to the Change of Control Offer shall cease to accrue interest on the Change of Control Payment Date; 

(5) that any Holder electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender
such Notes (in accordance with the Applicable Procedures, if in global form), with the form entitled “Option of Holder to Elect Purchase” on the reverse of such Notes completed, to the Paying Agent at the address specified in the Change of
Control Notice prior to the close of business on the Business Day preceding the Change of Control Payment Date; 
 (6) that
any Holder shall be entitled to withdraw its tendered Notes and such election to require the Company to purchase such Notes, provided that the Paying Agent receives, not later than the close of business on the Business Day preceding the Change of
Control Payment Date, a telegram, telex, facsimile transmission or letter, setting forth the name of the Holder, the principal amount of Notes tendered for purchase, and a statement that such Holder is withdrawing such tendered Notes and such
Holder’s election to have such Notes purchased pursuant to the Change of Control Offer; 
 (7) that Holders electing to
have their Notes purchased pursuant to a Change of Control Offer must specify the principal amount that is being tendered for purchase, which principal amount of the portion of Notes tendered must be equal to $2,000 or an integral multiple of $1,000
thereafter; 
 (8) any conditions to the Change of Control Offer; 

  
 7 

 (9) the procedures determined by the Company, consistent with the Indenture,
that a Holder must follow in order to have its Notes purchased; and 
 (10) any other information necessary to enable any
Holder to tender Notes and to have such Notes purchased pursuant to the Indenture. 
 “Change of Control Payment Date”
means a Business Day no earlier than 30 calendar days nor later than 60 calendar days subsequent to the date that a Change of Control Notice is mailed (or, when the Securities or Global Securities, give pursuant to the applicable procedures of the
applicable Depositary) (other than as may be required by law). 
 “Credit Agreement” means the Term Loan Credit Agreement and the
Revolving Credit Agreement. 
 “Credit Facilities” means one or more debt facilities (including, without limitation, the
Company’s senior credit facility), indentures or commercial paper facilities, in each case with banks, investment banks, insurance companies, mutual funds and/or other institutional lenders or investors providing for debt financing, revolving
credit loans, term loans, receivables financing (including through the sale of receivables to such lenders or to special purpose entities formed to borrow from (or sell receivables to) such lenders against such receivables) or letters of credit, in
each case, as amended, extended, restated, renewed, refunded, replaced or refinanced (in each case with credit facilities), supplemented or otherwise modified (in whole or in part and without limitation as to amount, terms, conditions, covenants and
other provisions) from time to time. 
 “Finance Lease Obligation” means an obligation that is required to be classified
and accounted for as a finance lease for financial reporting purposes in accordance with GAAP, and the amount of indebtedness represented by such obligation shall be the capitalized amount of such obligation determined in accordance with GAAP; and
the stated maturity thereof shall be the date of the last payment of rent or any other amount due under such lease prior to the first date upon which such lease may be terminated by the lessee without payment of a penalty. 

“GAAP” means generally accepted accounting principles in the United States set forth in the opinions and pronouncements of
the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as may be approved by a
significant segment of the accounting profession, which are in effect on the date of the Indenture. 
 “GEPH Merger” means
the closing of the transaction contemplated by the GEPH Merger Agreement. 
 “GEPH Merger Agreement” means the Agreement
and Plan of Merger, dated as of November 3, 2021, among the Company, GEP Haynesville, LLC, Mustang Acquisition Company, LLC, GEP Haynesville, LLC and GEPH Unitholder Rep. LLC, solely in its capacity as the unitholder representative. 

  
 8 

 “guarantee” means any obligation, contingent or otherwise, of any Person
directly or indirectly guaranteeing any indebtedness of any other Person and, without limiting the generality of the foregoing, any obligation, direct or indirect, contingent or otherwise, of such Person (1) to purchase or pay (or advance or
supply funds for the purchase or payment of) such indebtedness of such other Person (whether arising by virtue of partnership arrangements, or by agreements to keep-well, to purchase assets, goods, securities or services (unless such purchase
arrangements are on arm’s-length terms and are entered into in the ordinary course of business), to take-or-pay, or to
maintain financial statement conditions or otherwise) or (2) entered into for purposes of assuring in any other manner the obligee of such indebtedness of the payment thereof or to protect such obligee against loss in respect thereof (in whole
or in part); provided that the term “Guarantee” shall not include endorsements for collection or deposit in the ordinary course of business, letters of credit issued in the ordinary course of its business or other signature
guarantees made by a Subsidiary in the ordinary course of its business. The term “guarantee” used as a verb has a corresponding meaning. 

“hydrocarbons” means oil, natural gas, casing head gas, drip gasoline, natural gasoline, condensate, distillate, liquid
hydrocarbons, gaseous hydrocarbons and all constituents, elements or compounds thereof and products refined or processed therefrom. 

“Investment Grade Rating” means a rating equal to or greater than (i) BBB- by
S&P or (ii) Baa3 by Moody’s, or (iii) the equivalent thereof under any new ratings system if the ratings system of either such agency shall be modified after the date hereof, or (iv) the equivalent rating or any other Ratings
Agency selected by the Company as provided by the definition of Ratings Agency. 
 “Lien” means any mortgage, pledge, lien,
charge, security interest, conditional sale or other title retention agreement or other encumbrance of any nature whatsoever. 

“Moody’s” means Moody’s Investors Services, Inc. or any successor to the rating agency business thereof. 

“Net Working Capital” means: 

(a) all current assets of the Company and its Subsidiaries, minus 

(b) all current liabilities of the Company and its Subsidiaries, except current liabilities included in indebtedness; in each
case determined in accordance with GAAP. 
 “NYMEX prices” means, as of any date of determination, the forward month prices
for the most comparable hydrocarbon commodity applicable to such future production month for a five year period (or such shorter period if forward month prices are not quoted for a reasonably comparable hydrocarbon commodity for the full five year
period), with such prices held constant thereafter based on the last quoted forward month price of such period, as such prices are (i) quoted on the New York Mercantile Exchange (or its successor) as of a date within 30 days of the date of
determination and (ii) adjusted for energy content, quality and basis differentials; provided that with respect to estimated future production for which prices are defined, within the meaning of SEC guidelines, by contractual
arrangements excluding escalations based upon future conditions, then such contract prices shall be applied to future production subject to such arrangements. 

  
 9 

 “Oil and Gas Business” means (i) the acquisition, exploration,
exploitation, development, production, treatment, operation, servicing, processing, refining and disposition of interests in oil, gas and other hydrocarbon properties (including the acquisition of properties and interests therein the Company in its
reasonable judgment deems necessary or appropriate for the activities described in the foregoing), (ii) the gathering, marketing, treating, processing, storage, selling and transporting of any production from such interests or properties,
(iii) any business relating to exploration for or exploitation, development, production, treatment, operation, servicing, processing, refining, storage, transportation or marketing of oil, natural gas and other hydrocarbon product and other
minerals and products produced in association therewith and (iv) any activity that is ancillary or incidental to or necessary or appropriate for the activities described in clauses (i) through (iii) of this definition. 

“Oil and Gas Properties” means all properties, including equity or other ownership interest therein, owned by such Person or
any of its subsidiaries which contain or are believed to contain “proved oil and gas reserves” as defined in Rule 4-10 of Regulation S-X of the Securities Act.

 “Ordinary Course Lien” means any: 

(1) Lien incurred in the ordinary course of business to secure the obtaining of advances or the payment of the deferred
purchase price of property; 
 (2) Lien created by any interest or title of a lessor under any lease entered into by the
Company or any Subsidiary in the ordinary course of business and covering only the assets so leased; 
 (3) Lien arising from
precautionary UCC financing statements or similar filings made in respect of operating leases; 
 (4) Lien that is a
contractual right of set-off (a) relating to the establishment of depository relations with banks not given in connection with the issuance of indebtedness, (b) relating to pooled deposits or sweep
accounts to permit satisfaction of overdraft or similar obligations incurred in the ordinary course of business or (c) relating to purchase orders and other agreements entered in the ordinary course of business; 

(5) oil, gas or mineral lease arising in the ordinary course of business where the Lien arises from the rights of lessors; 

(6) customary initial deposits and margin deposits and any similar Lien attaching to commodity trading accounts or other
brokerage accounts that are not for speculative purposes and arise in the ordinary course of business; 
 (7) Lien on cash
and cash equivalents in favor of, and letters of credit issued for the benefit of, counterparties to Swap Agreements securing obligations under such Swap Agreements; 

  
 10 

 (8) Lien arising from the sale or other transfer in the ordinary course of
business of (A) crude oil, natural gas, other petroleum hydrocarbons or other minerals in place for a period of time until, or in an amount such that, the purchaser or other transferee will realize therefrom a specified amount of money (however
determined) or a specified amount of such minerals, or (B) any other interest in property of the character commonly referred to as a “production payment,” “overriding royalty,” “forward sale” or similar interest;

 (9) Liens which may be attached to undeveloped real estate not containing oil or gas reserves presently owned by the
Company in the ordinary course of the Company’s real estate, sales, development and rental activities; 
 (10) Lien in
favor of the United States of America, any State, any foreign country or any department, agency, instrumentality or political subdivision of any such jurisdiction, to secure partial, progress, advance or other payments pursuant to any contract or
statute or to secure any indebtedness incurred for the purpose of financing all or any part of the purchase price or cost of constructing, refurbishing, developing or improving any property subject thereto, including without limitation, any Lien to
secure indebtedness of pollution control or industrial revenue bond type; and 
 (11) Lien arising from any right which any
municipal or governmental body or agency may have by virtue of any franchise, license, contract or statute to purchase, or designate a purchaser of or order the sale of, any property of the Company or any Subsidiary upon payment of reasonable
compensation therefor or to terminate any franchise, license or other rights or to regulate the property and business of the Company or any Subsidiary of the Company. 

“Permitted Lien” means any Lien incurred, assumed or guaranteed that do not arise from indebtedness for borrowed money and,
without limiting the foregoing, Liens on Principal Property: 
 (1) upon any Principal Property (including any related
contract rights) existing at the time of acquisition thereof by the Company or any of its Subsidiaries (whether such acquisition is direct or by acquisition of stock, assets or otherwise, provided any such Lien is not incurred in
contemplation of such acquisition); 
 (2) securing indebtedness under Credit Facilities of any Subsidiary of the Company
provided that the aggregate principal amount of any indebtedness under such Credit Facilities shall not exceed $500.0 million at any time outstanding; 

(3) upon or with respect to any property (including any related contract rights) acquired, constructed, refurbished or improved
by the Company or any of its Subsidiaries (including, but not limited to, any Lien to secure all or any part of the cost of construction, alteration or repair of any building, equipment, facility or other improvement on, all or any part of such
property, including any pipeline financing) after the date of this Fourth Supplemental Indenture which are created, incurred or assumed contemporaneously with, or within 360 days after, the latest to occur of the acquisition (whether by acquisition
of stock, assets or otherwise), completion of construction, refurbishment or improvement, or the commencement of commercial operation, of such 

  
 11 

 
property (or, in the case of Liens on contract rights, the completion of construction or the commencement of commercial operation of the facility to which such contract rights relate, regardless
of the date when the contract was entered into) to secure or provide for the payment of any part of the purchase price of such property or the cost of such construction, refurbishment or improvement; provided, however, that in the case of any
such construction, refurbishment or improvement, the Lien shall relate only to indebtedness reasonably incurred to finance such construction, refurbishment or improvement; 

(4) securing indebtedness owing by any of the Company’s Subsidiaries to the Company or to other Subsidiaries; 

(5) arising from the deposit of funds or securities in trust for the purpose of decreasing or defeasing indebtedness; 

(6) for the sole purpose of extending, renewing or replacing (or successive extensions, renewals or replacements), in whole or
in part, any Lien referred to in the foregoing subsections (1), or (3) above or this subsection (6) of this definition of “Permitted Liens”; provided, however, that the principal amount of indebtedness secured thereby
shall not exceed the principal amount of indebtedness at the time of such extension, renewal or replacement, and that such extension, renewal or replacement shall be limited to all or part of the property subject to the Lien so extended, renewed or
replaced (plus refurbishment of or improvements on or to such property); and 
 (7) any Ordinary Course Lien arising, but
only so long as continuing, in the ordinary course of the Company’s business or the business of the Company’s Subsidiaries. 
 In
each case set forth above, notwithstanding any stated limitation on the assets that may be subject to such Lien, a Lien on a specified asset or group or type of assets may include Liens on all improvements, additions and accessions thereto and all
products and proceeds thereof (including, without limitation, dividends, distributions and increases in respect thereof). 

“Permitted Sale and Leaseback Transaction” means any Sale and Leaseback Transaction: 

(i) between the Company and any of its Subsidiaries or between any of the Company’s Subsidiaries; or 

(ii) for which, at the time the transaction is entered into, the term of the related lease to the Company or its Subsidiary of
the property sold pursuant to such transaction is three years or less. 
 “Principal Transmission Facility” means any
transportation or distribution facility, including pipelines, of the Company or any Subsidiary of the Company located in the United States of America other than (i) any such facility which in the opinion of the Board of Directors of the Company
is not of material importance to the business conducted by the Company and its Subsidiaries, taken as a whole, or (ii) any such facility in which interests are held by the Company or by one or more of its Subsidiaries or by the Company and one
or more of its Subsidiaries and by others and the aggregate interest held by the Company and all of its Subsidiaries does not exceed 50%. 

  
 12 

 “Productive Property” means any property interest owned by the Company or
any Subsidiary of the Company in land (including submerged land and rights in and to oil, gas and mineral leases) located in the United States of America classified by the Company or such Subsidiary, as the case may be, as productive of crude oil,
natural gas or other petroleum hydrocarbons in paying quantities; provided that such term shall not include any exploration or production facilities on said land, including any drilling or producing platform. 

“Ratings Agency” means any of: 

(1) Moody’s; 

(2) S&P; or 

(3) if S&P or Moody’s ceases to rate the Notes or ceases to make a rating on the Notes publicly available, an entity
registered as a “nationally recognized statistical rating organization” (registered as such pursuant to Section 3(a)(62) of the Exchange Act) then making a rating on such Notes publicly available selected by the Company (as certified
by an Officers’ Certificate delivered to the Trustee), which shall be substituted for S&P or Moody’s, as the case may be. 

“Redemption Date” means, with respect to any redemption of Notes, the date fixed for such redemption pursuant to the
Indenture and the Notes. 
 “Revolving Credit Agreement” means that certain Credit Agreement, dated as of April 26,
2018, by and among the Company, JPMorgan Chase Bank, N.A., as administrative agent, and the lenders from time to time party thereto, as amended, restated, modified, renewed, refunded, replaced in any manner (whether upon or after termination or
otherwise) or refinanced in whole or in part from time to time, in each case with one or more reserve-based borrowing base credit facilities with lenders that include commercial banks regulated by the U.S. Office of the Comptroller of the Currency.

 “Sale and Leaseback Transaction” means any direct or indirect arrangement with any Person, or to which any such Person
is a party, providing for the leasing to the Company or a Subsidiary of the Company of any property, whether owned as of the date of this Indenture or thereafter acquired, which has been or is to be sold or transferred by the Company or such
Subsidiary to such Person, or to any other Person to whom funds have been or are to be advanced by such Person on the security of such property, in each case provided that the completion of construction or the commencement of commercial operation of
the property subject to such transaction shall have occurred more than 180 days prior thereto. 
 “Secured Debt” means any
indebtedness for borrowed money incurred, assumed or guaranteed by the Company or one its Subsidiaries that is secured by a Lien. 

“Security Guarantors” means the Subsidiaries of the Company executing this Fourth Supplemental Indenture and any other
Subsidiary of the Company that becomes a Security Guarantor in accordance with the provisions of the Indenture, in each case until the Security Guarantee of such Subsidiary has been released in accordance with the Indenture. 

  
 13 

 “S&P” means S&P Global Ratings, or any successor to the rating
agency business thereof. 
 “Swap Agreement” means (a) any agreement with respect to any swap, forward, future or
derivative transaction or option or similar agreement involving, or settled by reference to, one or more rates, currencies, commodities, equity or debt instruments or securities, or economic, financial or pricing indices or measures of economic,
financial or pricing risk or value or any similar transaction or any combination of these transactions, whether or not any such transaction is governed by or subject to any master agreement and (b) any and all transactions of any kind, and the
related confirmations, which are subject to the terms and conditions of, or governed by, any form of master agreement published by the International Swaps and Derivatives Association, Inc., any International Foreign Exchange Master Agreement, or any
other master agreement, including any such obligations or liabilities under any master agreement; provided that no phantom stock or similar plan providing for payments only on account of services provided by current or former directors, Officers,
employees or consultants of the Company or any of its Subsidiaries shall be a “Swap Agreement.” 
 “Term Loan Credit
Agreement” means the Term Loan Credit Agreement expected to be entered into at or prior to the closing of the GEPH Merger among the Company as borrower, the lenders party thereto and JPMorgan Chase Bank, N.A. as administrative and
collateral agent, as amended, restated, modified, renewed, refunded, replaced in any manner (whether upon or after termination or otherwise) or refinanced in whole or in part from time to time, in each case with one or more reserve-based borrowing
base credit facilities with lenders that include commercial banks regulated by the U.S. Office of the Comptroller of the Currency. 

“Treasury Rate” means, in respect of any Redemption Date, the yield to maturity, as of the time of computation, of the most
recently issued United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 that has become publicly available at least two Business Days prior to such time (or,
if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from the Redemption Date to February 1, 2027; provided, however, that if the period from the
Redemption Date to February 1, 2027 is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used. The Company will (a) calculate the Treasury
Rate no later than the second (and no earlier than the First) Business Day preceding the applicable Redemption Date and (b) prior to such Redemption Date, file with the Trustee a statement setting forth the Applicable Premium and the Treasury
Rate and showing the calculation of each in reasonable detail; provided that the Trustee shall not be responsible for any such calculation. 

“Trigger Period” means the period commencing on the day of the first public announcement by the Company of any Change of
Control (or pending Change of Control) and ending 60 days following consummation of such Change of Control (which Trigger Period will be extended following consummation of a Change of Control for so long as either of the Ratings Agencies has
publicly announced that it is considering a possible ratings downgrade related to such Change of Control). 

  
 14 

 “Volumetric Production Payments” mean production payment obligations
recorded as deferred revenue in accordance with GAAP, together with all undertakings and obligations in connection therewith. 

“Voting Stock” of a Person means all classes of Capital Stock of such Person then outstanding and normally entitled (without
regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof. 
 Section 2.02
Other Definitions. 
  

					
	 Term
	  	Defined in Section	 
	 Base Indenture
	  	 	Recitals	 
	 Change of Control Offer
	  	 	5.04	(a) 
	 Change of Control Payment
	  	 	5.04	(a) 
	 Company
	  	 	Preamble	 
	 Fourth Supplemental Indenture
	  	 	Preamble	 
	 Indenture
	  	 	Recitals	 
	 Non-Guarantor Subsidiary
	  	 	5.03	 
	 Notes
	  	 	1.01	(a) 
	 Principal Property
	  	 	5.01	 
	 Trustee
	  	 	Preamble	 

 ARTICLE III 

THE NOTES 
  

Section 3.01 Form. The Notes shall be issued initially in the form of one or more Global Securities. The Notes will be issued in
denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Notes shall be substantially in the form of Exhibit A hereto, the terms of which are incorporated in and made a part of this Fourth
Supplemental Indenture, and the Company, the Guarantors and the Trustee, by their execution and delivery of this Fourth Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby. 

ARTICLE IV 

REDEMPTION AND PREPAYMENT 

Section 4.01 Optional Redemption. The Company may redeem the Notes at its option as provided in Section 5 of the form of Note
attached hereto as Exhibit A. The provisions of Article V of the Base Indenture in respect of the Notes shall apply to any optional redemption of the Notes. 

  
 15 

 Section 4.02 Special Mandatory Redemption. 

(a) If (i) the GEPH Merger has not been completed on or prior to January 31, 2022 (the “Outside Date”), or
(ii) on or prior to the Outside Date, (a) the GEPH Merger Agreement has been terminated or (b) the Company has determined in its sole discretion that the consummation of the GEPH Merger cannot or is not reasonably likely to be
satisfied on or prior to the Outside Date (the earlier to occur of the events described in clauses (i) and (ii) of this sentence, a “Special Mandatory Redemption Event”), the Company will be required to redeem all of the
outstanding Notes on the Special Mandatory Redemption Date (as described below) at a redemption price equal to 100% of the principal amount of such Notes, plus accrued and unpaid interest from the date of initial issuance of such Notes to, but not
including, the Special Mandatory Redemption Date (the “Special Mandatory Redemption Price”). 
 (b) Upon the occurrence of
a Special Mandatory Redemption Event, the Company will promptly (but in no event later than three Business Days following such Special Mandatory Redemption Event) notify the Holders of such event (with an Officers’ Certificate certifying the
occurrence of the Special Mandatory Redemption Event to be simultaneously delivered to the Trustee) (such date of notification to the Holders, the “Special Mandatory Redemption Notice Date”), and that the Notes will be redeemed no
later than five Business Days (and no sooner than two Business Days) after the Special Mandatory Redemption Notice Date (such date, the “Special Mandatory Redemption Date”). The notice provided on the Special Mandatory Redemption
Notice Date shall notify each Holder in accordance with the applicable provisions of the Indenture that all of the outstanding Notes shall be redeemed at the Special Mandatory Redemption Price on the Special Mandatory Redemption Date automatically
and without any further action by the Holders of the Notes. On or prior to 10:00 a.m., New York City time, on the Special Mandatory Redemption Date, the Company will deposit with the Trustee funds sufficient to pay the Special Mandatory Redemption
Price for all of the Notes to be redeemed and direct the Trustee to redeem the Notes on the Special Mandatory Redemption Date. If such deposit is made as provided above, the Notes will cease to bear interest on and after the Special Mandatory
Redemption Date and the Trustee shall cause the redemption of the Notes and the payment of the Special Mandatory Redemption Price in accordance with the directions provided by the Company to the Holders of the Notes. 

(c) Upon the consummation of the GEPH Merger, the foregoing provisions of this Section 4.02 will cease to apply.

 (d) The provisions of Section 5.03 of the Base Indenture in respect of the Notes shall apply to any Special Mandatory Redemption of the
Notes except when such provisions conflict with the foregoing. 
 ARTICLE V 

ADDITIONAL COVENANTS 

The following covenants, in addition to the covenants set forth in Article III of the Base Indenture, shall apply to the Notes: 

Section 5.01 Limitations on Liens. The Company shall not, and shall not permit any of its Subsidiaries to, incur, assume, or
guarantee any indebtedness for borrowed money secured by a Lien on any (a) any Productive Property, (b) any Principal Transmission Facility or (c) any shares of stock of any Subsidiary (collectively (a), (b) and (c), “Principal
Property”), if the sum, without duplication, of: 

  
 16 

 (x) the aggregate principal amount of all Secured Debt of the Company and
its Subsidiaries (other than Secured Debt secured by a Permitted Lien); and 
 (y) all Attributable Debt of the Company or
its Subsidiaries in respect of Sale and Leaseback Transactions involving any Principal Property (other than Permitted Sale and Leaseback Transactions), 

exceeds the greatest of (i) $2.0 billion, (ii) 25% of the Company’s ACNTA at the time of incurrence and (iii) with respect to
borrowings under the Revolving Credit Agreement, the Borrowing Base, unless the Company provides that the Notes will be secured equally and ratably with (or, at the Company’s option, prior to) such Secured Debt. 

Section 5.02 Restriction of Sale-Leaseback Transactions. Neither the Company nor any of its Subsidiaries shall enter into, assume,
guarantee or otherwise become liable with respect to any Sale and Leaseback Transaction involving any Principal Property, unless after giving effect thereto the sum of all Attributable Debt in respect of such Sale and Leaseback Transactions (other
than Permitted Sale and Leaseback Transactions) does not exceed $250.0 million. 
 Section 5.03 Future Security Guarantors.
If, in the future, any Subsidiary of the Company that is not a Security Guarantor (a “Non-Guarantor Subsidiary”) subsequently becomes a borrower or guarantor under, or grants a Lien to secure, any
indebtedness of the Company or of a Security Guarantor under (i) the Credit Agreements or any future Credit Facility or (ii) any other indebtedness for borrowed money, in each case with an outstanding principal amount in excess of
$500.0 million, then the Company will cause that Non-Guarantor Subsidiary to become a Security Guarantor and guarantee the Notes as provided in Article VII hereof by executing a supplement to the
Indenture and delivering such supplement to the Trustee promptly (but in any event within ten Business Days) following the date that that such Non-Guarantor Subsidiary so subsequently becomes a borrower or
guarantor under or so grants a Lien to secure such indebtedness of the Company or of a Security Guarantor. No such Subsidiary shall be required to become a Security Guarantor if it merges into the Company or merges into an existing Security
Guarantor and the surviving entity remains a Security Guarantor. 
 Section 5.04 Offer to Repurchase Upon Change of Control
Event. 
 (a) If a Change of Control Event occurs with respect to the Notes, each Holder of such Notes shall have the right to require
the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 thereafter) of such Holder’s Notes at a purchase price in cash equal to 101% of the aggregate principal amount of such Holder’s Notes, plus
accrued and unpaid interest, if any, up to but excluding the date of purchase (the “Change of Control Payment”), subject to the right of Holders on a Regular Record Date to receive interest on the relevant Interest Payment Date as
described in Section 5.04(c) below. Within 30 days following a Change of Control Event, if the Company has not (prior to the Change of Control Event) sent a redemption notice for all of the Notes in connection with an
optional redemption 

  
 17 

 
permitted by Article IV of this Fourth Supplemental Indenture, the Company shall mail (or, when the Securities or Global Securities, give pursuant to the applicable
procedures of the applicable Depositary) a Change of Control Notice (the “Change of Control Offer”) to each Holder of such Notes, with a copy to the Trustee. On the Change of Control Payment Date, the Company shall, to the extent
lawful: 
 (1) accept for payment all Notes or portions of Notes (of at least $2,000 or an integral multiple of $1,000
thereafter) properly tendered pursuant to the Change of Control Offer; 
 (2) deposit with the Paying Agent an amount equal
to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered and not properly withdrawn; and 

(3) deliver or cause to be delivered to the Trustee the Notes so accepted together with an Officers’ Certificate stating
the aggregate principal amount of Notes or portions thereof being purchased by the Company. 
 (b) The Paying Agent shall promptly mail (or,
when the Securities or Global Securities, give pursuant to the applicable procedures of the applicable Depositary) to each Holder of Notes properly tendered and not withdrawn the Change of Control Payment for such Notes, and the Trustee shall
promptly authenticate and mail (or cause to be transferred by book entry, or, if such Notes are in global form, make such payments through the facilities of the Depositary) to each Holder a new Note equal in principal amount to any unpurchased
portion of the Notes surrendered, if any; provided that each such new Note shall be in a principal amount of $2,000 or an integral multiple of $1,000 thereafter. Any Note so accepted for payment shall cease to accrue interest on and after the
Change of Control Payment Date unless the Company defaults in making the Change of Control Payment. 
 (c) If the Change of Control Payment
Date is on or after a Regular Record Date for the payment of interest and on or before the related Interest Payment Date, any accrued and unpaid interest shall be paid to the Person in whose name the relevant Note is registered at the close of
business on such Regular Record Date, and no further interest shall be payable to Holders who tender pursuant to the Change of Control Offer. 

(d) The provisions described in this Section 5.04 shall be applicable to any Change of Control Event whether or not
any other provisions of the Indenture are applicable. 
 (e) The Company shall not be required to make a Change of Control Offer upon a
Change of Control Event if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in the Indenture applicable to a Change of Control Offer made by the Company and
purchases all Notes validly tendered and not properly withdrawn under such Change of Control Offer. 
 (f) The Company shall comply, to the
extent applicable, with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws or regulations in connection with the purchase of Notes in connection with a Change of Control Event.
To the extent that the provisions of any securities laws or regulations conflict with provisions of the 

  
 18 

 
Indenture, or compliance with the Change of Control Event provisions of the Indenture would constitute a violation of any such laws or regulations, the Company shall comply with the applicable
securities laws and regulations and shall not be deemed to have breached its obligations described in the Indenture by virtue of its compliance with such securities laws or regulations. 

ARTICLE VI 

CONSOLIDATION, MERGER OR SALE OF ASSETS 

The provisions of Article IV of the Base Indenture shall apply with respect to the Notes. 

ARTICLE VII 

SECURITY GUARANTEES 

Section 7.01 Security Guarantees. The Security Guarantors hereby fully, unconditionally and absolutely guarantee on a senior,
unsecured basis the Company’s Obligations under the Notes and the Indenture in accordance with Article XI of the Base Indenture, except as set forth below in Section 7.02. Each Security Guarantor hereby agrees that its
Security Guarantee set forth herein and in Article XI of the Base Indenture shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Security Guarantee on the Notes. The delivery of any Note by the
Trustee, after the authentication thereof under the Indenture, shall constitute due delivery of the Security Guarantee set forth in the Indenture on behalf of the Security Guarantors. 

Section 7.02 Release of Guarantees. With respect to the Notes, the provisions of this Article VII shall
replace and preempt the provisions of Section 11.03(b) of the Base Indenture in their entirety. If no Default or Event of Default has occurred and is continuing, a Security Guarantor shall be released and relieved of its obligations under its
Security Guarantee: (i) in connection with any sale or other disposition of all or substantially all of the properties or assets of, or all of the Company’s direct or indirect limited partnership, limited liability company or other equity
interests in, such Security Guarantor (including by way of merger or consolidation) to a Person that is not (either before or after giving effect to such transaction) an Affiliate of the Company; (ii) upon the merger of such Security Guarantor
into the Company or any other Security Guarantor or the liquidation or dissolution of such Security Guarantor; (iii) upon Legal Defeasance or Covenant Defeasance in accordance with Article VIII of the Base Indenture or upon satisfaction and
discharge of the Indenture under Section 9.01 of the Base Indenture; or (iv) upon delivery of written notice to the Trustee of the release of all guarantees or other obligations of such Security Guarantor under the
Credit Agreements or any future Credit Facility or other indebtedness for borrowed money that had so required such Security Guarantor to provide a guarantee of the Notes such that the Subsidiary would not be required to be a Security Guarantor under
Section 5.03 of this Fourth Supplemental Indenture. If, at any time following any release of a Security Guarantor from its initial Guarantee of the Notes pursuant to clause (iv) in the preceding sentence, the Security
Guarantor again incurs obligations under the Credit Agreements or any future Credit Facility or other indebtedness for borrowed money such that the Subsidiary would be required to be a Security Guarantor under Section 5.03
of this Fourth Supplemental Indenture, then the Company shall cause such Security Guarantor to again guarantee the Notes in accordance with the Indenture. 

  
 19 

 ARTICLE VIII 

EVENTS OF DEFAULT 

Section 8.01 Applicability. The provisions of Article VI of the Base Indenture shall apply with respect to the Notes. 

ARTICLE IX 

MISCELLANEOUS 

Section 9.01 Integral Part. This Fourth Supplemental Indenture constitutes an integral part of the Indenture. 

Section 9.02 Adoption, Ratification and Confirmation. The Base Indenture, as supplemented and amended by this Fourth Supplemental
Indenture, is in all respects hereby adopted, ratified and confirmed. 
 Section 9.03 Counterparts. This Fourth Supplemental
Indenture may be executed in any number of counterparts, each of which when so executed shall be deemed an original; and all such counterparts shall together constitute but one and the same instrument. Delivery of an executed counterpart of this
Fourth Supplemental Indenture by facsimile or electronic transmission shall be equally as effective as delivery of an original executed counterpart of this Fourth Supplemental Indenture. The words “execution,” “signed,”
“signature,” “delivery,” and words of like import in or relating to this Fourth Supplemental Indenture or any document to be signed in connection with this Fourth Supplemental Indenture shall be deemed to include electronic
signatures (except with respect to the authentication of the Notes by the Trustee or an Authenticating Agent), deliveries or the keeping of records in electronic form, each of which shall be of the same legal effect, validity or enforceability as a
manually executed signature, physical delivery thereof or the use of a paper-based recordkeeping system, as the case may be, and the parties hereto consent to conduct the transactions contemplated hereunder by electronic means. 

Section 9.04 The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or
sufficiency of this Fourth Supplemental Indenture or for or in respect of the recitals contained herein, all of which are made solely by the Company. The Trustee shall not be accountable for the use or application by the Company of the Notes or the
proceeds thereof. All of the provisions contained in the Base Indenture in respect of the rights, privileges, immunities, powers and duties of the Trustee shall be applicable in respect of the Notes and this Fourth Supplemental Indenture or fully
and with like effect as if set forth in full herein. 
 Section 9.05 Governing Law. THIS FOURTH SUPPLEMENTAL INDENTURE AND THE
NOTES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 

  
 20 

 [Signatures on following pages] 

  
 21 

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

			
	SOUTHWESTERN ENERGY COMPANY
		
	By:	 	/s/ Carl Giesler, Jr.
	Name:	 	Carl Giesler, Jr.
	Title:	 	Executive Vice President and Chief Financial Officer
	
	A.W. REALTY COMPANY, LLC
	ANGELINA GATHERING COMPANY, L.L.C.
	SWN DRILLING COMPANY, LLC
	SWN E & P SERVICES, LLC
	SWN ENERGY SERVICES COMPANY, LLC
	SWN INTERNATIONAL, LLC
	SWN MIDSTREAM SERVICES COMPANY, LLC
	SWN PRODUCER SERVICES, LLC
	SWN PRODUCTION COMPANY, LLC
	SWN PRODUCTION (LOUISIANA), LLC
	SWN PRODUCTION (OHIO), LLC
	SWN WATER RESOURCES COMPANY, LLC
	SWN WELL SERVICES, LLC

  

			
	By:	 	/s/ Carl Giesler, Jr.
	Name:	 	Carl Giesler, Jr.
	Title:	 	Executive Vice President and Chief Financial Officer

 [Signature Page to Fourth Supplemental Indenture] 

 
			
	REGIONS BANK, AS TRUSTEE
		
	By:	 	/s/ Doug Milner
	Name:	 	Doug Milner
	Title:	 	Senior Vice President

 [Signature Page to Fourth Supplemental Indenture] 

 EXHIBIT A 

FORM OF NOTE 
 [Include the following
legend for Global Securities only: 
 “THIS IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE REFERRED TO HEREINAFTER. 

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), NEW
YORK, NEW YORK, TO THE 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 PAYMENT IS 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. 
 TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT
IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON
THE REVERSE HEREOF.”] 

  
 A-1 

 FORM OF FACE OF NOTE 

Southwestern Energy Company 

4.750% Senior Notes due 2032 
  

			
	No.	  	Principal Amount $

 as revised by the Schedule of Increases and Decreases 

in Global Security attached hereto 

CUSIP NO. 845467 AT6 
 Southwestern Energy
Company, a Delaware corporation, promises to pay to                , or registered assigns, the principal sum of
                                
Dollars                ($                    ) as revised by the
Schedule of Increases and Decreases in Global Security attached hereto, on February 1, 2032. 
  

			
	Interest Payment Dates:	  	February 1 and August 1
		
	Regular Record Dates:	  	Close of business on the immediately preceding January 15 or July 15, as applicable.

 Additional provisions of this Note are set forth on the other side of this Note. 

 

			
	 SOUTHWESTERN ENERGY COMPANY, the
Company

 
			
		
	 By:
	 	 

 
			
	 Name:
	 	
	 Title:
	 	

  

			
	TRUSTEE’S CERTIFICATE OF
	AUTHENTICATION
	 Regions Bank,
 as Trustee,
certifies
 that this is one of
 the Securities of the
series
 designated therein referred
 to in the within mentioned
Indenture.

		
	By:	 	 
		 	Authorized Signatory
		
	Dated:	 	 

  
 A-2 

 FORM OF REVERSE SIDE OF NOTE 

Southwestern Energy Company 

4.750% Senior Notes due 2032 
 1.
Indenture 
 Southwestern Energy Company, a Delaware corporation (such corporation and its successors and assigns under the Indenture (as defined
below) hereinafter referred to, the “Company”) issued the Notes as part of a series of Securities designated the 4.750% Senior Notes due 2032 (the “Notes”) under an Indenture, dated as of August 30,
2021, between the Company and the Trustee (the “Base Indenture”) as supplemented by the Fourth Supplemental Indenture, dated as of December 22, 2021, among the Company, the Security Guarantors party thereto and
the Trustee (the “Fourth Supplemental Indenture” and, with the Base Indenture as so supplemented, the “Indenture”). The Notes are guaranteed by the Security Guarantors as provided in the Indenture. The
terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the TIA. The Notes are subject to all such terms, and Holders are referred to the Indenture and the TIA for a statement of those terms.
Each Holder by accepting a Note, agrees to be bound by all of the terms and provisions of the Indenture, as amended or supplemented from time to time. Capitalized terms used herein and not defined herein have the meanings ascribed thereto in the
Indenture. 
 The Notes are general unsecured obligations of the Company. Subject to the conditions set forth in the Indenture, the Company may issue
additional Notes as Additional Securities. All Notes shall be treated as one class of securities under the Indenture. 
 The Indenture imposes certain
limitations on, among other things, the ability of the Company and its Subsidiaries to: incur Liens; enter into Sale and Leaseback Transactions; or consolidate or merge or transfer or convey all or substantially all of the Company’s assets.

 2. Interest 
 The Company promises to pay interest
on the principal amount of this Note at the rate of 4.750% per annum. 
 The Company will pay interest semiannually in arrears on each Interest Payment
Date, commencing August 1, 2022. Interest on the Notes will accrue from the most recent date to which interest has been paid on the Notes or, if no interest has been paid, from the date of issuance. Interest will be computed on the basis of a 360-day year of twelve 30-day months. 
 The Company shall pay interest (including
post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal (plus interest on such interest to the extent lawful), at the rate borne by the Notes to the extent lawful and, to the extent such payments are lawful, the
Company shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (“Defaulted Interest”) without regard to any applicable grace periods at the same
rate as the rate shown on this Note, in each case as provided in the Indenture. 

  
 A-3 

 3. Method of Payment 

Prior to 10:00 a.m. New York City time on the date on which any principal of or interest on any Note is due and payable, the Company shall deposit with the
Trustee or the Paying Agent money sufficient to pay such principal and/or interest. The Company will pay interest (except Defaulted Interest) to the Persons who are registered Holders of Notes at the close of business on the Regular Record Date
preceding the Interest Payment Date even if Notes are canceled, repurchased or redeemed after the Regular Record Date and on or before the relevant Interest Payment Date, except as provided in Section 2.13 of the Base Indenture (as defined
below) with respect to Defaulted Interest. Holders must surrender Notes to a Paying Agent to collect principal payments. The Company will pay principal and interest in U.S. Legal Tender. 

Payments in respect of Notes represented by a Global Security (including principal and interest) will be made by the transfer of immediately available funds
to the accounts specified by DTC. The Company will make all payments in respect of a Certificated Note (including principal and interest) by mailing a check to the registered address of each Holder thereof as set forth in the Note Register;
provided, however, that payments on the Notes may also be made, in the case of a Holder of at least $5,000,000 aggregate principal amount of Notes, by wire transfer to a U.S. dollar account maintained by the payee with a bank in the United
States if such Holder elects payment by wire transfer by giving written notice to the Trustee or the Paying Agent to such effect designating such account no later than 15 days immediately preceding the relevant due date for payment (or such other
date as the Trustee may accept in its discretion). 
 4. Paying Agent and Registrar 

Initially, the Trustee, will act as Trustee, Paying Agent and Registrar. The Company may appoint and change any Paying Agent, Registrar or co-Registrar without notice to any Holder. The Company may act as Paying Agent, Registrar or co-Registrar without notice to any Holder. 

5. Optional Redemption 
 On or after February 1,
2027, the Company may on any one or more occasions redeem all or a part of the Notes, upon notice as provided in the Indenture, at the Redemption Prices (expressed as percentages of principal amount) set forth below, plus accrued and unpaid
interest, if any, on the Notes redeemed, to, but excluding, the applicable date of redemption, if redeemed during the twelve-month period beginning on February 1 of the years indicated below, subject to the rights of Holders of Notes on the
relevant record date to receive interest due on the relevant Interest Payment Date: 
  

					
	Year	  	Percentage	 
	 2027
	  	 	102.375	% 
	 2028
	  	 	101.583	% 
	 2029
	  	 	100.792	% 
	 2030 and thereafter
	  	 	100.000	% 

 At any time prior to February 1, 2027, the Company may on any one or more occasions redeem all or a part
of the Notes, upon notice as provided in the Indenture, at a Redemption Price equal to 100% of the principal amount of the Notes redeemed, plus the relevant Applicable Premium, and accrued and unpaid interest, if any, to, but excluding, the date of
redemption, subject to the rights of Holders of Notes on the relevant record date to receive interest due on the relevant Interest Payment Date. 

  
 A-4 

 If the optional redemption date is on or after an interest record date and on or before the related Interest
Payment Date, the accrued and unpaid interest, if any, will be paid to the Person in whose name the Note is registered at the close of business on such record date. 

6. Repurchase Provisions 
 Upon the occurrence of a
Change of Control Event, each Holder shall have the right to require the Company to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 thereafter) of such Holder’s Notes at a purchase price, in cash, equal to 101% of
the aggregate principal amount of such Holder’s Notes, plus accrued and unpaid interest, if any, up to but excluding the date of purchase pursuant to the terms and conditions specified in the Indenture. Within 30 days following any
Change of Control Event, if the Company has not (prior to the Change of Control Event) sent a redemption notice for all the Notes in connection with an optional redemption permitted by Section 4.01 of the Fourth
Supplemental Indenture or as otherwise provided under the Indenture, the Company shall make a Change of Control Offer pursuant to a Change of Control Notice. As more fully described in the Indenture, the Change of Control Notice shall state, among
other things, the Change of Control Payment Date, which must be no earlier than 30 days nor later than 60 days from the date the Change of Control Notice is mailed (or, when the Securities or Global Securities, give pursuant to the applicable
procedures of the applicable Depositary), other than as may be required by applicable law. 
 7. Special Mandatory Redemption 

If a Special Mandatory Redemption Event occurs, the Company shall redeem all of the Outstanding Notes on the Special Mandatory Redemption Date in accordance
with the provisions of Section 4.02 of the Fourth Supplemental Indenture. 
 8. Denominations; Transfer; Exchange 

The Notes are in fully registered form without coupons, and only in denominations of principal amount of $2,000 and integral multiples of $1,000 thereafter. A
Holder may transfer or exchange Notes at the Registrar in accordance with the Indenture. The Registrar may require a Holder, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes and fees required by law
or permitted by the Indenture. The Registrar need not register the transfer of or exchange (i) any Notes selected for repurchase or redemption (except, in the case of a Note to be redeemed in part, the portion of the Note not to be repurchased
or redeemed) for a period beginning 15 days before the mailing of a notice of Notes to be repurchased or redeemed and ending on the date of such mailing or (ii) any Notes for a period beginning 15 days before an Interest Payment Date and ending
on such Interest Payment Date. 
 9. Persons Deemed Owners 

The registered Holder of this Note may be treated as the owner of it for all purposes. 

  
 A-5 

 10. Unclaimed Money 

If money for the payment of principal or interest remains unclaimed for two years, the Trustee or Paying Agent shall pay the money back to the Company at its
request unless an abandoned property law designates another Person. After any such payment, Holders entitled to the money will be deemed general creditors of the Company with respect to the money and must look only to the Company and not to the
Trustee for payment. 
 11. Discharge Prior to Redemption or Maturity 

Subject to certain conditions set forth in the Indenture, the Company at any time may terminate some or all of its obligations under the Notes and the
Indenture if the Company deposits with the Trustee U.S. Legal Tender or U.S. Government Obligations for the payment of principal of and interest on the Notes to redemption or maturity, as the case may be. 

12. Amendment, Waiver 
 Subject to certain exceptions set
forth in the Indenture, (i) the Indenture or the Notes may be amended or supplemented with the written consent of the Holders of at least a majority in principal amount of the then Outstanding Notes and (ii) any default (other than with
respect to nonpayment or in respect of a provision that cannot be amended or supplemented without the written consent of each Holder affected) or noncompliance with any provision may be waived with the written consent of the Holders of a majority in
aggregate principal amount of the then Outstanding Notes. Subject to certain exceptions set forth in the Indenture, without the consent of any Holder, the Company and the Trustee may amend or supplement the Indenture or the Notes to, among other
things, cure any ambiguity, defect or inconsistency, comply with Article IV of the Base Indenture, provide for uncertificated Notes in addition to or in place of certificated Notes, add guarantees with respect to the Notes or to secure the Notes,
add additional covenants or surrender rights and powers conferred on the Company, comply with any requirement of the SEC in connection with qualifying the Indenture under the TIA, make any change that would provide any additional rights or benefits
to the Holders or that does not adversely affect the rights of any Holder, add additional Events of Default, provide evidence for the acceptance of appointment by a successor Trustee, and to modify provisions in the Indenture therefor, establish the
form or terms of the Notes, make any change necessary to make the Indenture, the Notes or the Security Guarantee relating to the Notes, consistent with the description of the Notes in the prospectus or any related prospectus supplement relating to
such Notes, correct or supplement any provision of the Indenture that may be inconsistent with any other provision of the Indenture so long as such action shall not adversely affect the interests of any Holder, change or eliminate any of the
provisions of the Indenture; provided, that any such change or elimination shall become effective only when there is no Security Outstanding of any series created prior to the execution of such supplemental indenture which is entitled to the
benefit of any such provision. 

  
 A-6 

 13. Defaults and Remedies 

If an Event of Default, other than a Bankruptcy Law Event of Default with respect to the Company, shall have occurred with respect to the Notes and be
continuing and is known to the Trustee, the Trustee, by written notice to the Company, or the Holders of not less than 25% in aggregate Principal Amount of the then Outstanding Notes, by written notice to the Company and the Trustee, may declare the
unpaid principal of (and premium, if any) and any accrued and unpaid interest on all Notes to be immediately due and payable. If a Bankruptcy Law Event of Default occurs with respect to the Company, then the unpaid principal of (and premium, if any)
and accrued and unpaid interest on all the Notes shall ipso facto become immediately due and payable without further notice or action on the part of the Trustee or any Holder. 

Holders may not enforce the Indenture or the Notes except as provided in the Indenture. The Trustee may refuse to enforce the Indenture or the Notes unless it
receives indemnity or security satisfactory to it. Subject to certain limitations, Holders of a majority in principal amount of the Outstanding Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders
notice of any continuing Default or Event of Default (except a Default or Event of Default in payment of principal or interest, if any, on the Notes) if it determines that withholding notice is in their interest. 

14. Trustee Dealings with the Company and the Security Guarantors 

Subject to certain limitations set forth in the Indenture, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or
pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Company, the Security Guarantors or their 
 Affiliates and may
otherwise deal with the Company, the Security Guarantors or their Affiliates with the same rights it would have if it were not Trustee. 
 15. No
Recourse Against Others 
 An incorporator, director, officer, employee, stockholder, member, manager, partner or controlling Person, as such, of the
Company or any Security Guarantor shall not have any liability for any obligations of the Company under the Notes, the Indenture or any Security Guarantee or for any claim based on, in respect of or by reason of such obligations or their creation.
By accepting a Note, each Holder waives and releases all such liability. The waiver and release are part of the consideration for the issue of the Notes. 

16. Authentication 
 This Note shall not be valid until
an authorized signatory of the Trustee (or an Authenticating Agent) manually signs the certificate of authentication on the other side of this Note. 
 17.
Abbreviations 
 Customary abbreviations may be used in the name of a Holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants
by the entirety), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian) and U/G/M/A (=Uniform Gift to Minors Act). 

  
 A-7 

 18. CUSIP, ISIN or Other Similar Numbers 

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures the Company has caused CUSIP, ISIN or other similar
numbers to be printed on the Notes and has directed the Trustee to use such numbers in notices of redemption as a convenience to Holders. 
 No
representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon. 

19. Governing Law 
 This Note shall be governed by, and
construed in accordance with, the laws of the State of New York. 
 The Company shall furnish to any Holder upon written request and without charge to the
Holder a copy of the Indenture. Requests may be made to: Southwestern Energy Company, 10000 Energy Drive, Spring, Texas 77389. 

  
 A-8 

 ASSIGNMENT FORM 

To assign this Note, fill in the form below: 
 I or we assign and
transfer this Note to (Print or type assignee’s name, address and zip code) 
 (Insert assignee’s Social Security or Tax I.D. Number) and
irrevocably appoint agent to transfer this Note on the books of the Company. The agent may substitute another to act for him. 
  

			
	 Date: __________________________
	  	 Your Signature:_____________________________

		
	 Signature Guarantee:_________________________
	  	
	
                   
               (Signature must be guaranteed)
	  	

 Sign exactly as your name appears on the other side of this Note. 

The signature(s) should be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan associations and credit unions with
membership in an approved signature guarantee medallion program), pursuant to Exchange Act Rule 17Ad-15. 

  
 A-9 

 SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY 

The following increases or decreases in this Global Security have been made: 
  

									
	 Date of
Exchange
	  	
Amount of
decrease in
Principal
Amount of this
Global Security
	  	
Amount of
increase in
Principal
Amount of this
Global Security
	  	
Principal
Amount of this
Global Security
following such
decrease or
increase
	  	 Signature of
authorized
signatory of
Trustee
or
Security
Custodian

  
 A-10 

 OPTION OF HOLDER TO ELECT PURCHASE 

If you want to elect to have this Note purchased by the Company pursuant to Section 5.04 of the Indenture, check the box below: 

☐    Section 5.04 
 If
you want to elect to have only part of this Note purchased by the Company pursuant to Section 5.04 of the Indenture, state the principal amount (which must be $2,000 or an integral multiple of $1,000 thereafter) that you want to have purchased
by the Company: $ 
  

			
	 Date: __________________________
	  	 Your Signature:_____________________________

 (Sign exactly as your name appears on the other side of the Note) 

 

	
	 Signature Guarantee:_________________________

	
                   
               (Signature must be guaranteed)

 The signature(s) should be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan associations
and credit unions with membership in an approved signature guarantee medallion program), pursuant to Exchange Act Rule 17Ad-15. 

  
 A-11

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