Document:

EX-4.10

 Exhibit 4.10 

FIRST SUPPLEMENTAL INDENTURE 

FIRST SUPPLEMENTAL INDENTURE (the “Supplemental Indenture”), dated as of March 1, 2019 by and among Encana Corporation,
a corporation amalgamated and existing under the laws of Canada (the “Corporation”), Newfield Exploration Company, a Delaware corporation, as guarantor (the “Guarantor”), and The Bank of New York Mellon, as trustee
under the Indenture referred to below (the “Trustee”). 
 WHEREAS, the Corporation and the Trustee are parties to that
certain indenture, dated as of November 14, 2011 (as amended and supplemented, the “Indenture”), under which the Corporation may issue from time to time unsecured debentures, notes or other evidences of indebtedness in an
unlimited aggregate principal amount issuable in one or more series as provided therein and pursuant to which the Corporation’s 3.90% Notes due 2021 and 5.15% Notes due 2041 (collectively, the “Securities”), which together
constitute all of the issued and outstanding series of securities issued pursuant to the Indenture as of the date hereof, were issued; 

WHEREAS, Section 901(10) of the Indenture provides that without the consent of any Holders, the Corporation, when authorized by or
pursuant to a Board Resolution, and the Trustee, may enter into one or more indentures supplemental thereto, for the purpose of making any provisions with respect to matters arising under the Indenture; provided such action shall not adversely
affect the interests of the Holders of Securities of any series in any material respect; 
 WHEREAS, the Guarantor, a wholly-owned indirect
subsidiary of the Corporation, desires to fully and unconditionally guarantee the due and punctual payment of the principal of, premium, if any, and interest on the Securities (the “Guarantee”) issued by the Corporation; and 

WHEREAS, the entry into of this Supplemental Indenture by the parties hereto is in all respects authorized by the provisions of the Indenture,
and all things necessary to make this Supplemental Indenture a valid agreement of the Corporation, the Guarantor and the Trustee in accordance with its terms have been done. 

NOW, THEREFORE, for and in consideration of the premises contained herein, it is mutually covenanted and agreed for the benefit of all Holders
of the Securities as follows: 
 1. Definitions. All capitalized terms used and not otherwise defined herein have the respective
meanings ascribed to such terms in the Indenture. 
 2. Guarantee. 

 

	 	2.1.	 Agreement to Guarantee. 

The Guarantor hereby fully and unconditionally guarantees to each Holder of Securities, the due and punctual payment of the principal of,
premium, if any, and interest on the Securities, and the due and punctual payment of any Additional Amounts that may be payable with respect to such Securities, when and as the same shall become due and payable, whether on the Stated Maturity, by
declaration of acceleration, call for redemption or otherwise, according to the terms hereof and of the Indenture. In case of the failure of the Corporation punctually to make any such payment of principal, premium, if any, or interest, or any
Additional Amounts that may be payable with respect to the Securities, the Guarantor hereby agrees to cause any such payment to be made punctually when and as the same shall become due and payable, whether on the Stated Maturity or by declaration of
acceleration, call for redemption or otherwise, and as if such payment were made by the Corporation. 
 The Guarantor hereby agrees that
its obligations hereunder shall be as if it were principal debtor and not merely surety, and shall be unconditional, irrespective of, and shall be unaffected by, any invalidity, irregularity or unenforceability of the Securities, the Indenture or
this Supplemental Indenture, any failure to enforce the provisions of the Securities, the Indenture or this Supplemental Indenture, or any waiver, modification or indulgence granted to the Corporation with respect thereto or hereto, by the Holder of
the Securities or the Trustee or any other circumstance which may otherwise constitute a legal or equitable discharge of a surety or guarantor; provided, however, that, notwithstanding the foregoing, no such waiver, modification or indulgence shall,
without the consent 

 
of the Guarantor, increase the principal amount of the Securities, or increase the interest rate thereon, or increase any premium payable upon redemption thereof, or alter the Stated Maturity
thereof. The Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of merger or bankruptcy of the Corporation, any right to require a proceeding first against the Corporation, protest or notice
with respect to the Securities or the indebtedness evidenced thereby, or with respect to any Additional Amounts that may be payable with respect to the Securities and all demands whatsoever, and covenants that its obligations under this
Section 2.1 will not be discharged except by statute of limitation or payment in full of the principal of, premium, if any, and interest on and any Additional Amounts that may be payable with respect to the Securities. 

The Guarantor shall be subrogated to all rights of each Holder of the Securities, the Trustee and any Paying Agent against the Corporation in
respect of any amounts paid to such Holder by the Guarantor pursuant to the provisions of this Section 2.1; provided, however, that until the principal of, premium, if any, and interest on all Securities issued under the Indenture and
Additional Amounts with respect to such Securities shall have been paid in full, such rights shall be exercised and enforced by the Guarantor only in such manner and on such terms as the Trustee may require or approve. 

Any term or provision of the Indenture and this Supplemental Indenture to the contrary notwithstanding, the maximum aggregate amount of the
Securities guaranteed hereunder by the Guarantor shall not exceed the maximum amount that can be hereby guaranteed by the Guarantor without rendering the Guarantee, as it relates to the Guarantor, voidable under applicable law relating to fraudulent
conveyance, fraudulent transfer, corporate benefit, financial assistance or similar laws affecting the rights of creditors generally. 
 By
executing this Supplemental Indenture, the Guarantor acknowledges and agrees that the obligations to compensate, reimburse, and indemnify the Trustee under the Indenture shall apply to the Guarantor and that the Guarantor and the Corporation,
jointly and severally, are obligated to compensate, reimburse, and indemnify the Trustee in accordance with the terms of the Indenture. 
  

	 	2.2.	 Execution and Delivery. 

To evidence its Guarantee set forth in Section 2.1 hereof, the Guarantor hereby agrees that this Supplemental Indenture shall be executed
on behalf of the Guarantor by one or more authorized officers or persons holding an equivalent title. 
 The Guarantor hereby agrees that
its Guarantee set forth in Section 2.1 hereof shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantee on the Securities. 

 

	 	2.3.	 Release of Guarantee. 

The Guarantee shall be automatically and unconditionally released and discharged, and the Guarantor shall be automatically and unconditionally
released and discharged from all of its obligations under the Guarantee and its obligations under the Indenture, without any action by the Corporation, the Guarantor or the Trustee, upon the occurrence of any of the following: 

 

	 	(1)	 such time as the Guarantor no longer has outstanding any debt securities guaranteed by the Corporation, whether
because such debt securities have matured or have been redeemed or repurchased and cancelled, or otherwise; 

  

	 	(2)	 satisfaction and discharge of the Indenture in accordance with Article 4 of the Indenture; or

  

	 	(3)	 defeasance of the Securities in accordance with Article 14 of the Indenture. 

Upon any such occurrence specified in this Section 2.3, if requested by the Corporation, the Trustee shall, at the Corporation’s
expense, execute any documents reasonably requested by the Corporation in order to evidence such release and discharge. 

  
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 3. Effect. This Supplemental Indenture shall become effective upon its execution and
delivery by the parties hereto. 
 4. Responsibility of Trustee. The Trustee shall not be responsible for the validity as to the
Corporation or sufficiency of this Supplemental Indenture or as to the due execution hereof by the Corporation or as to recitals of fact contained herein, all of which are made solely by the Corporation. 

5. GOVERNING LAW. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 

6. Counterparts. This Supplemental Indenture may be executed in one or more counterparts, each of which shall be an original, but all of
which together shall constitute one and the same document. 
 7. Effect on Indenture. This Supplemental Indenture shall form a part of
the Indenture for all purposes and every holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby. Except as expressly set forth herein, the Indenture is in all respects ratified and confirmed and all the terms,
conditions and provisions thereof shall remain in full force and effect. 
 8. Effect of Headings. The Section headings herein are for
convenience only and shall not affect the construction hereof. 
 9. Severability. In case any provision in this Supplemental
Indenture (including the Guarantee provided herein) or in the Indenture as supplemented hereby shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or
impaired thereby. 
 10. Trust Indenture Act. If and to the extent that any provision of this Supplemental Indenture limits, qualifies
or conflicts with another provision of this Supplemental Indenture or the Indenture that is required to be included by the Trust Indenture Act, the provision required by the Trust Indenture Act shall control. 

[Remainder of page intentionally left blank.] 

  
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 IN WITNESS WHEREOF, the parties have executed this Supplemental Indenture as of the date
first above written. 
  

			
	 ENCANA CORPORATION,

as Issuer

		
	By:	 	 /s/ Sherri A. Brillon

	Name:	 	Sherri A. Brillon
	Title:	 	 Executive Vice-President &
 Chief
Financial Officer

		
	By:	 	 /s/ Nancy L. Brennan

	Name:	 	Nancy L. Brennan
	Title:	 	Corporate Secretary

  

			
	 NEWFIELD EXPLORATION COMPANY,

as Guarantor

		
	By:	 	 /s/ David G. Hill

	Name:	 	David G. Hill
	Title:	 	Vice-President

 [Signature Page to First Supplemental Indenture to 2011 Indenture] 

 
			
	 THE BANK OF NEW YORK MELLON,

as Trustee

	By:	 	 /s/ Bhawna Dhayal

	Name:	 	Bhawna Dhayal
	Title:	 	Authorized Signatory

 [Signature Page to First Supplemental Indenture to 2011 Indenture]EX-4.11

 Exhibit 4.11 

NEWFIELD EXPLORATION COMPANY 

GUARANTEE 
 THIS
GUARANTEE is made as of March 1, 2019 
 WHEREAS the Guarantor is a Subsidiary of the Borrower; 

AND WHEREAS the Guarantor has agreed to provide a guarantee with respect to the Credit Facility provided by the Lenders pursuant to the
Credit Agreement; 
 NOW THEREFORE, in consideration of the covenants and agreements herein contained, and other good and valuable
consideration (the receipt and sufficiency of which are hereby conclusively acknowledged), the Guarantor hereby covenants and agrees with the Beneficiaries as follows: 

ARTICLE 1- INTERPRETATION 

 

	1.1	 Definitions 

  

	 	(a)	 In this Guarantee and the recitals hereto, unless something in the subject matter or context is inconsistent
therewith: 

 “Beneficiaries” means, collectively, the Lenders and the Agent, and “Beneficiary” means
any of the foregoing. 
 “Beneficiaries’ Counsel” means the firm of Norton Rose Fulbright Canada LLP or such other firm of legal
counsel as the Agent may from time to time designate in accordance with the Credit Agreement. 
 “Borrower” means Encana Corporation and
its successors. 
 “Credit Agreement” means the restated credit agreement made as of July 16, 2015, as amended by a first amending
agreement made as of March 28, 2018, between the Borrower, as borrower, Royal Bank of Canada and such other persons as become parties thereto, as lenders, and Royal Bank of Canada as agent of such lenders, as the same may be further amended,
modified, supplemented or restated from time to time in accordance with the provisions thereof. 
 “Default Rate” means a rate per annum
that is equal to (i) in respect of amounts due in Canadian Dollars, the rate of interest then payable under the Credit Agreement on Prime Loans plus 1.0% per annum or (ii) in respect of amounts due in US Dollars, the rate of interest then
payable under the Credit Agreement on USBR Loans plus 1.0% per annum. 
 “Guarantee” means this guarantee, as amended, modified,
supplemented or restated from time to time in accordance with the provisions hereof. 
 “Guarantor” means Newfield Exploration Company and
its successors. 
 “Obligations” means, collectively and at any time and from time to time, all of the obligations, indebtedness and
liabilities (present or future, absolute or contingent, matured or not) of the Borrower to the Agent and the Lenders under, pursuant or relating to the Credit Agreement and the other Loan Documents (other than this Guarantee) and including all
Outstandings and all interest, commissions, legal and other costs, charges and expenses payable by the Borrower under the Credit Agreement and such other Loan Documents, whether the same are from time to time reduced and thereafter increased or
entirely extinguished and thereafter incurred again. 
  

	 	(b)	 Capitalized words and phrases used in this Guarantee and the recitals hereto without express definition herein
shall, unless something in the subject matter or context is inconsistent therewith, have the same defined meanings as are ascribed to such words and phrases in the Credit Agreement. For certainty, if the Credit Agreement ceases to be in force for
any reason whatsoever, then for all purposes hereof the aforementioned capitalized words and phrases shall continue to have the same defined meanings set forth in the Credit Agreement as if such agreement remained in force in the form immediately
prior to its ceasing to be in force. 

	1.2	 Headings 

The division of this Guarantee into Articles and Sections and the insertion of headings are for convenience of reference only and shall not
affect the construction or interpretation of this Guarantee. The terms “this Guarantee”, “hereof, “hereunder” and similar expressions refer to this Guarantee and not to any particular Article, Section or other portion hereof
and include any agreement supplemental hereto. Unless something in the subject matter or context is inconsistent therewith, references herein to Articles and Sections are to Articles and Sections of this Guarantee. 

 

	1.3	 Number; persons; including 

Words importing the singular number only shall include the plural and vice versa, words importing the masculine gender shall include the
feminine and neuter genders and vice versa and words importing persons shall include individuals, partnerships, associations, trusts, unincorporated organizations and corporations and vice versa and words and terms denoting inclusiveness (such as
“include” or “includes” or “including”), whether or not so stated, are not limited by their context or by the words or phrases which precede or succeed them. 

 

	1.4	 Interest Act (Canada) 

 

	 	(a)	 Whenever a rate of interest hereunder is calculated on the basis of a year (the “deemed year”) which
contains fewer days than the actual number of days in the calendar year of calculation, such rate of interest shall be expressed as a yearly rate for the purposes of the Interest Act (Canada) by multiplying such rate of interest by the actual
number of days in the calendar year of calculation and dividing it by the number of days in the deemed year. 

  

	 	(b)	 THE GUARANTOR ACKNOWLEDGES AND CONFIRMS THAT: (A) THE CREDIT AGREEMENT, INCLUDING ARTICLE
5 THEREOF AND THE CONSTITUENT DEFINITIONS THEREIN AND UNDER THIS GUARANTEE AND THE OTHER LOAN DOCUMENTS RELATING TO INTEREST AND OTHER AMOUNTS PAYABLE HEREUNDER AND THEREUNDER, SATISFIES THE REQUIREMENTS OF SECTION 4 OF THE INTEREST
ACT (CANADA) TO THE EXTENT THAT SUCH SECTION 4 OF THE INTEREST ACT (CANADA) APPLIES TO THE EXPRESSION, STATEMENT OR CALCULATION OF ANY RATE OF INTEREST OR OTHER RATE PER ANNUM HEREUNDER OR UNDER ANY OTHER LOAN
DOCUMENT; AND (B) THE GUARANTOR IS ABLE TO CALCULATE THE YEARLY RATE OR PERCENTAGE OF INTEREST PAYABLE UNDER ANY LOAN DOCUMENT BASED ON THE METHODOLOGY SET OUT HEREIN AND UNDER THE OTHER LOAN DOCUMENTS, INCLUDING ARTICLE 5 OF THE
CREDIT AGREEMENT AND THE CONSTITUENT DEFINITIONS THEREIN AND UNDER THIS GUARANTEE AND THE OTHER LOAN DOCUMENTS RELATING TO INTEREST AND OTHER AMOUNTS PAYABLE HEREUNDER AND THEREUNDER. 

 

	 	(c)	 THE GUARANTOR HEREBY IRREVOCABLY AGREES NOT TO PLEAD OR ASSERT, WHETHER BY WAY OF DEFENCE OR OTHERWISE, IN
ANY PROCEEDING RELATING TO THE LOAN DOCUMENTS, THAT THE INTEREST PAYABLE UNDER THE LOAN DOCUMENTS AND THE CALCULATION THEREOF HAS NOT BEEN ADEQUATELY DISCLOSED TO THE BORROWER, ANY SUBSIDIARY OR THE GUARANTOR, WHETHER PURSUANT TO SECTION 4 OF THE
INTEREST ACT (CANADA), OR ANY OTHER APPLICABLE LAW OR LEGAL PRINCIPLE. 

  

	1.5	 Nominal Rates 

The principle of deemed reinvestment of interest shall not apply to any interest calculation under this Guarantee; all interest payments to be
made hereunder shall be paid without allowance or deduction for deemed reinvestment or otherwise, before and after demand, default and judgment. The rates of interest specified in this Guarantee are intended to be nominal rates and not effective
rates and any interest calculated hereunder shall be calculated using the nominal rate method and not the effective rate method of calculation. 

 ARTICLE 2 – GUARANTEE 

 

	2.1	 Guarantee of Obligations 

The Guarantor hereby unconditionally and irrevocably guarantees to the Beneficiaries the payment and performance of all of the Obligations,
together with interest thereon as provided in Section 5.4. 
  

	2.2	 Indemnity 

If any or all of the Obligations are not duly paid or performed by the Borrower or any Subsidiary, as applicable, and are not recoverable under
Section 2.1 for any reason whatsoever, the Guarantor will, as a separate and distinct obligation, indemnify and save harmless the Beneficiaries from and against all losses resulting from the failure of the Borrower or such Subsidiary to pay and
perform such Obligations. 
  

	2.3	 Guarantor as Principal Obligor 

If any or all of the Obligations are not duly paid or performed by the Borrower or any Subsidiary, as applicable, and are not recoverable under
Section 2.1 or the Beneficiaries are not indemnified under Section 2.2, in each case, for any reason whatsoever, such Obligations shall, as a separate and distinct obligation, be recoverable by the Beneficiaries from the Guarantor as the
primary obligor and principal debtor in respect thereof and shall be paid to the Beneficiaries forthwith after demand therefor as provided herein. 
  

	2.4	 Guarantee Absolute and Unconditional 

The liability and obligations of the Guarantor hereunder shall be continuing, unconditional and absolute and, without limiting the generality
of the foregoing, shall not be released, discharged, limited or otherwise affected by: 
  

	 	(a)	 any extension, other indulgence, renewal, settlement, discharge, compromise, waiver, subordination or release
in respect of any Obligation, security, person or otherwise, including any extension, other indulgence, renewal, settlement, discharge, compromise, waiver, subordination or release of any of the Obligations, covenants or undertakings of the Borrower
and its Subsidiaries under the Loan Documents; 

  

	 	(b)	 any modification or amendment of or supplement to the Obligations; 

 

	 	(c)	 any loss of or in respect of any security held by or on behalf of the Beneficiaries, whether occasioned by the
fault of the Beneficiaries or otherwise, including any release, non-perfection or invalidity of any such security; 

  

	 	(d)	 any change in the existence, structure, constitution, name, control or ownership of the Borrower, any
Subsidiary or any other person, or any insolvency, bankruptcy, reorganization or other similar proceeding affecting the Borrower, any Subsidiary or any other person or their respective assets; 

 

	 	(e)	 the existence of any set-off, counterclaim, claim or other right which
the Guarantor, the Borrower or any Subsidiary may have at any time against the Beneficiaries or any other person, whether in connection with the Credit Agreement, this Guarantee, any other Loan Document or any unrelated transaction;

  

	 	(f)	 any provision of Applicable Law purporting to prohibit or limit the payment by the Borrower or any Subsidiary,
as applicable, of any Obligation, and the foregoing is hereby waived by the Guarantor to the extent permitted under Applicable Law; 

  

	 	(g)	 any limitation, postponement, prohibition, subordination or other restriction on the right of a Beneficiary or
any other person on behalf of a Beneficiary to payment of the Obligations; 

  

	 	(h)	 any release, substitution or addition of any other guarantor of the Obligations; 

	 	(i)	 any defence arising by reason of any failure of any Beneficiary or any other person on a Beneficiary’s
behalf to make any presentment, demand, or protest or to give any other notice, including notice of all of the following: acceptance of this Guarantee, partial payment or nonpayment of all or any part of the Obligations and the existence, creation,
or incurring of new or additional Obligations; 

  

	 	(j)	 any defence arising by reason of any failure of a Beneficiary or any other person on behalf of a Beneficiary to
proceed against the Borrower, any Subsidiary or any other person, or to apply or exhaust any security held from the Borrower, any Subsidiary or any other person for the Obligations, to proceed against, apply or exhaust any security held from the
Guarantor or any other person, or to pursue any other remedy available to the Beneficiaries or any other person on behalf of the Beneficiaries; 

  

	 	(k)	 any defence arising by reason of the invalidity, illegality or lack of enforceability of the Obligations or any
part thereof or of any security or guarantee in support thereof, or by reason of any incapacity, lack of authority, or other defence of the Borrower, any Subsidiary or any other person, or by reason of any limitation, postponement or prohibition on
a Beneficiary’s or other person on behalf of a Beneficiary’s rights to payment, or the cessation from any cause whatsoever of the liability of the Borrower, any Subsidiary or any other person with respect to all or any part of the
Obligations (other than irrevocable payment to the Beneficiaries in full, in cash, of the Obligations), or by reason of any act or omission of the Beneficiaries or others which directly or indirectly results in the discharge or release of the
Borrower, any Subsidiary or any other person or of all or any part of the Obligations or any security or guarantee therefor, whether by contract, operation of law or otherwise; 

 

	 	(l)	 any defence arising by reason of the failure by a Beneficiary or any other person on behalf of a Beneficiary to
obtain, register, perfect or maintain any security in or upon any property of the Borrower, any Subsidiary or any other person, or by reason of any interest of the Beneficiaries or any other person on behalf of the Beneficiaries in any property,
whether as owner thereof or as holder of security therein or thereon, being invalidated, voided, declared fraudulent or preferential or otherwise set aside, or by reason of any impairment of any right or recourse to collateral;

  

	 	(m)	 any defence arising by reason of the failure of the Beneficiaries or any other person on behalf of the
Beneficiaries to marshal assets; 

  

	 	(n)	 to the extent permitted under Applicable Law, any defence based upon any failure of the Beneficiaries or any
other person on behalf of the Beneficiaries to give to the Borrower, any Subsidiary or the Guarantor notice of any sale or other disposition of any property securing any or all of the Obligations or any other guarantee thereof, or any notice that
may be given in connection with any sale or other disposition of any such property; 

  

	 	(o)	 any defence based upon or arising out of any bankruptcy, insolvency, reorganization, moratorium, arrangement,
readjustment of debt, liquidation or dissolution proceeding commenced by or against the Borrower, any Subsidiary or any other person, including any discharge or bar against collection of any of the Obligations; or 

 

	 	(p)	 any other law, event or circumstance or any other act or failure to act or delay of any kind by the Borrower,
any Subsidiary, the Beneficiaries or any other person, which might, but for the provisions of this Section, constitute a legal or equitable defence to or discharge, limitation or reduction of the Guarantor’s obligations hereunder, other than as
a result of the payment or extinguishment in full of the Obligations. 

 The foregoing provisions apply and the foregoing waivers, to the
extent permitted under Applicable Law, shall be effective even if the effect of any action or failure to take action by the Beneficiaries or any other person on behalf of the Beneficiaries is to destroy or diminish the Guarantor’s subrogation
rights, the Guarantor’s right to proceed against the Borrower or any Subsidiary for reimbursement, the Guarantor’s right to recover contribution from any other guarantor or any other right or remedy of the Guarantor. 

 ARTICLE 3 – DEALINGS WITH THE BORROWER, THE SUBSIDIARIES AND OTHERS 

 

	3.1	 No Release 

The Beneficiaries, without releasing, discharging, limiting or otherwise affecting in whole or in part the Guarantor’s liability and
obligations hereunder, may: 
  

	 	(a)	 grant time, renewals, extensions, indulgences, releases and discharges to the Borrower, any Subsidiary or any
other guarantor or endorser; 

  

	 	(b)	 take or abstain from taking security or collateral from the Borrower, any Subsidiary or any other guarantor or
endorser or from perfecting security or collateral of the Borrower, any Subsidiary or any other guarantor or endorser; 

  

	 	(c)	 accept compromises from the Borrower, any Subsidiary or any other guarantor or endorser; 

 

	 	(d)	 subject to the Credit Agreement and the other Loan Documents, apply all money at any time received from the
Borrower or any Subsidiary or from security upon such part of the Obligations as the Beneficiaries may see fit or change any such application in whole or in part from time to time as the Beneficiaries may see fit; or 

 

	 	(e)	 otherwise deal with the Borrower, any Subsidiary and all other persons and security as the Beneficiaries may
see fit. 

  

	3.2	 No Exhaustion of Remedies 

The Beneficiaries shall not be bound or obligated to exhaust their recourse against the Borrower, any Subsidiary or other persons or any
securities or collateral it may hold or take any other action (other than to make demand pursuant to Article 5) before the Beneficiaries shall be entitled to demand, enforce and collect payment from the Guarantor hereunder. 

 

	3.3	 Evidence of Obligations 

Any account settled or stated in writing by or between a Beneficiary or the Beneficiaries, as the case may be, and the Borrower or any
Subsidiary, as applicable, shall be prima facie evidence that the balance or amount thereof appearing due to the same is so due. 
  

	3.4	 No Set-off 

In any claim by the Beneficiaries against the Guarantor hereunder, the Guarantor shall not claim or assert any
set-off, counterclaim, claim or other right that any of the Borrower, any Subsidiary or the Guarantor may have against one or more of the Beneficiaries. 

ARTICLE 4 – TERM OF GUARANTEE 
  

	4.1	 Continuing Guarantee 

This Guarantee shall be a continuing guarantee and shall continue to be effective even if at any time any payment of any of the Obligations is
rendered unenforceable or is rescinded or must otherwise be returned by any Beneficiary for any reason whatsoever (including the insolvency, bankruptcy or reorganization of the Borrower or any Subsidiary, as applicable), all as though such payment
had not been made. 
  

	4.2	 Revival of Indebtedness 

If at any time, all or any part of any payment previously received by a Beneficiary and applied to any Obligation must be rescinded or returned
by such Beneficiary for any reason whatsoever (including the insolvency, bankruptcy or reorganization of the Borrower or any Subsidiary, as applicable), such Obligation shall, for the purpose of this Guarantee, to the extent that such payment must
be rescinded or returned, be deemed to have continued in existence, notwithstanding such application by such Beneficiary, and this Guarantee shall continue to be effective or be reinstated, as the case may be, as to such Obligation as though such
application by such Beneficiary had not been made. 

	4.3	 Release of Guarantee 

If the Guarantor is released from its guarantee of the due and punctual payment of the principal of, premium, if any, and interest on the
Borrower’s (i) 6.50% notes due May 15, 2019, (ii) 3.90% notes due November 15, 2021, (iii) 8.125% notes due September 15, 2030, (iv) 7.20% notes due November 1, 2031, (v) 7.375% notes due November 1, 2031, (vi) 6.50%
notes due August 15, 2034, (vii) 6.625% notes due August 15, 2037, (viii) 6.50% notes due February 1, 2038, and (ix) 5.15% notes due November 15, 2041 (other than as a result of any payment being made under such guarantee), then,
upon the request of the Borrower or the Guarantor for the release of this Guarantee and provided that no Default or Event of Default has occurred and is continuing or would result from such release, this Guarantee shall also be released (and the
Agent shall promptly execute such documents and instruments as the Borrower or the Guarantor may reasonably request to evidence such release). 

ARTICLE 5 – DEMAND FOR PAYMENT, EXPENSES AND INTEREST 
  

	5.1	 Demand for Payment 

The Beneficiaries shall be entitled to make demand upon the Guarantor at any time during the continuance of an Event of Default and upon any
such demand the Beneficiaries may treat all Obligations as due and payable and may forthwith collect from the Guarantor all Obligations. The Guarantor shall make payment to or performance in favour of the Beneficiaries of all Obligations forthwith
after demand therefor is made upon the Guarantor by the Beneficiaries as aforesaid. 
  

	5.2	 Stay of Acceleration 

If acceleration of the time for payment of any amount payable by the Borrower or any Subsidiary, as applicable, in respect of the Obligations
is stayed upon the insolvency, bankruptcy, arrangement or reorganization of the Borrower or such Subsidiary or any moratorium affecting the payment of the Obligations, all such amounts that would otherwise be subject to acceleration shall
nonetheless be payable by the Guarantor hereunder forthwith on demand by the Beneficiaries. 
  

	5.3	 Expenses 

The Guarantor shall pay to the Beneficiaries all reasonable out of pocket costs and expenses, including all reasonable legal fees (on a
solicitor and his own client basis) and other expenses incurred by the Beneficiaries from time to time in the enforcement, realization and collection of or in respect of this Guarantee. All such amounts shall be payable by the Guarantor on demand by
the Beneficiaries. 
  

	5.4	 Interest 

Any payment obligation comprised in the Obligations guaranteed hereunder which is not paid when due hereunder shall bear interest, to the
extent not already included in the Obligations, both before and after default or judgment, from the date of demand pursuant to Section 5.1 to the date of payment at the rate or rates provided in the relevant Loan Document for such Obligations
or, in the event no such rate is provided for therein, at a rate per annum that is equal to the Default Rate. Any other amounts payable pursuant hereto, including pursuant to Section 5.3, which are not paid when due hereunder shall bear
interest, both before and after default or judgment, from the date of demand pursuant to Section 5.1 to the date of payment or reimbursement thereof by the Guarantor at a rate per annum that is equal to the Default Rate. All such interest shall
accrue daily and shall be payable by the Guarantor on demand by the Beneficiaries. 
 ARTICLE 6 – SUBROGATION 

 

	6.1	 Subrogation 

  

	 	(a)	 Until all Obligations have been irrevocably paid in full in cash, the Guarantor shall have no right of
subrogation to, and waives to the fullest extent permitted by Applicable Law, any right to enforce any remedy which the Beneficiaries now have or may hereafter have against the Borrower or any Subsidiary, as applicable, in respect of the
Obligations, and until such time the Guarantor waives any benefit of, and any right to participate in, any security, now or hereafter held by the Beneficiaries for the Obligations. 

	 	(b)	 If (i) the Guarantor performs or makes payment to the Beneficiaries of all amounts owing by the Guarantor
under this Guarantee, and (ii) the Obligations are performed and irrevocably paid in full then the Beneficiaries will, at the Guarantor’s request, execute and deliver to the Guarantor appropriate documents, without recourse and without
representation and warranty, necessary to evidence the transfer by subrogation to the Guarantor of the Beneficiaries’ interest in the Obligations and any security held therefor resulting from such performance or payment by the Guarantor.

 ARTICLE 7 – REPRESENTATIONS AND WARRANTIES; COVENANTS 

 

	7.1	 Representations and Warranties 

The Guarantor represents and warrants as follows to each of the Beneficiaries and acknowledges and confirms that each of the Beneficiaries is
relying upon such representations and warranties: 
  

	 	(a)	 Status and Authority 

It is a corporation duly incorporated and existing under the laws of Delaware and has all authority, capacity and powers and all
material Governmental Authorizations required to carry on its business as now conducted. 
  

	 	(b)	 Valid Authorization 

The execution, delivery and performance by the Guarantor of this Guarantee (i) is within the Guarantor’s authority, capacity and
power, (ii) has been duly authorized by all necessary corporate and other action, (iii) requires no Governmental Authorization or action by or in respect of, or filing with, any Governmental Authority, and (iv) does not contravene or
constitute a default under any provision of Applicable Law, or any agreement or any judgment, injunction, order, decree or other instrument binding upon the Guarantor or result in the creation or imposition of any security on any asset of the
Guarantor or any of its Subsidiaries. 
  

	 	(c)	 Enforceability of Guarantee 

This Guarantee constitutes a valid and legally binding obligation of the Guarantor, enforceable against the Guarantor in accordance with its
terms subject to applicable bankruptcy, insolvency and other laws of general application limiting the enforceability of creditors’ rights and to the fact that equitable remedies are only available in the discretion of the court. 

 

	 	(d)	 Interest Act (Canada-)
Representations and Warranties 

  

	 	(i)	 This Guarantee, including Section 1.4 hereof, the Credit Agreement, including Article 5 thereof, and the
constituent definitions herein and under the other Loan Documents relating to interest and other amounts payable hereunder and thereunder, satisfies the requirements of section 4 of the Interest Act (Canada) to the extent that such section 4
of the Interest Act (Canada) applies to the expression, statement or calculation of any rate of interest or other rate per annum hereunder or under any other Loan Document. 

 

	 	(ii)	 The Guarantor is able to calculate the yearly rate or percentage of interest payable under any Loan Document
based on the methodology set out herein and under the other Loan Documents, including Section 1.4 hereof, Article 5 of the Credit Agreement and the constituent definitions herein and under the other Loan Documents relating to interest and other
amounts payable hereunder and thereunder. 

	7.2	 Effective Time of Repetition 

All representations and warranties, when repeated or deemed to be repeated hereunder, shall be construed with reference to the facts and
circumstances existing at the time of repetition, unless they are stated herein to be made as at the date hereof. 
  

	7.3	 Nature of Representations and Warranties 

The representations and warranties set out in this Guarantee or deemed to be made pursuant hereto shall survive the execution and delivery of
this Guarantee notwithstanding any investigations or examinations which may be made by the Beneficiaries or Beneficiaries’ Counsel. Such representations and warranties shall survive until this Guarantee has been terminated. 

 

	7.4	 Covenants Contained in the Credit Agreement and Other Loan Documents 

The Guarantor hereby covenants and agrees with the Beneficiaries that the Guarantor shall observe, perform and comply with any and all of the
covenants of the Borrower and its Subsidiaries contained in the Credit Agreement or other Loan Documents that the Borrower or such other Subsidiary agrees that the Guarantor (as a Subsidiary or otherwise) shall observe, perform and comply with. 

ARTICLE 8 – [RESERVED] 

ARTICLE 9 – GENERAL 
  

	9.1	 Waiver of Notices 

The Guarantor hereby waives promptness, diligence, presentment, demand of payment, notice of acceptance and any other notice with respect to
this Guarantee and the obligations guaranteed hereunder, except for the demand pursuant to Section 5.1. 
  

	9.2	 Benefit of the Guarantee 

This Guarantee shall enure to the benefit of the respective successors and permitted assigns of the Beneficiaries and be binding upon the
successors of the Guarantor. 
  

	9.3	 Foreign Currency Obligations 

The Guarantor shall make payment relative to each Obligation in the currency (the “original currency”) in which the Borrower
or any Subsidiary, as applicable, is required to pay such Obligation. If the Guarantor makes payment relative to any Obligation to the Beneficiaries in a currency (the “other currency”) other than the original currency (whether voluntarily
or pursuant to an order or judgment of a court or tribunal of any jurisdiction), such payment shall constitute a discharge of the liability of the Guarantor hereunder in respect of such Obligation only to the extent of the amount of the original
currency which the Beneficiaries are able to purchase with the amount of other currency they receive on the date of receipt in accordance with normal practice. If the amount of the original currency which the Beneficiaries are able to purchase is
less than the amount of such currency originally due in respect of the relevant Obligation, the Guarantor shall indemnify and save the Beneficiaries harmless from and against any loss or damage arising as a result of such deficiency. This indemnity
shall constitute an obligation separate and independent from the other obligations contained in this Guarantee, shall give rise to a separate and independent cause of action, shall apply irrespective of any indulgence granted by the Beneficiaries
and shall continue in full force and effect notwithstanding any judgment or order in respect of any amount due hereunder or under any judgment or order. A certificate of a Beneficiary as to any such loss or damage shall constitute prima facie
evidence thereof, in the absence of manifest error. 
  

	9.4	 Payment Net of Withholding Taxes 

Except as permitted by Section 6.3 of the Credit Agreement, the Guarantor shall make all payments required hereunder, whether by way of
principal, interest or otherwise, without withholding any Taxes except as permitted by Section 6.3 of the Credit Agreement. If the Guarantor is required by law to deduct any withholding Taxes from or in respect of any amounts payable under this
Guarantee, the provisions of Section 6.3 of the Credit Agreement shall apply, mutatis mutandis. 

	9.5	 No Waiver; Remedies 

No failure on the part of the Beneficiaries to exercise, and no delay in exercising, any right hereunder shall operate as a waiver thereof, nor
shall any single or partial exercise of any right hereunder preclude the other or further exercise thereof or the exercise of any other right. The remedies herein provided are cumulative and not exclusive of any remedies provided by law. 

 

	9.6	 Severability 

If any provision of this Guarantee is determined to be invalid or unenforceable in whole or in part, such invalidity or unenforceability shall
attach only to such provision or part thereof and the remaining part of such provision and all other provisions hereof shall continue in full force and effect. To the extent permitted by applicable law the Guarantor hereby waives any provision of
law that renders any provision hereof prohibited or unenforceable in any respect. 
  

	9.7	 Amendments and Waivers 

Any provision of this Guarantee may be amended, waived or a consent given in respect thereof with the concurrence of the Guarantor and the
Agent on behalf of the Beneficiaries. Any waiver and any consent by the Agent on behalf of the Beneficiaries under any provision of this Guarantee must be in writing signed by the Agent and may be given subject to any conditions thought fit by the
Agent. Any waiver or consent shall be effective only in the instance and for the purpose for which it is given. 
  

	9.8	 Additional Guarantees 

This Guarantee is in addition and without prejudice to any other guarantees now or hereafter held by the Beneficiaries or any person on behalf
of the Beneficiaries and any other rights or remedies they might have. 
  

	9.9	 Notices 

Any demand, notice or other communication (hereinafter in this Section referred to as a “Communication”) to be given in
connection with this Guarantee shall be given in writing and may be given by personal delivery, facsimile or by registered mail addressed to the recipient as follows: 

To the Agent on behalf of the Beneficiaries as follows: 

Royal Bank of Canada, as Agent 
 4th Floor, 20 King Street West 
 Toronto, Ontario M5H 1C4 

Attention:         Manager, Agency Services Group 

Facsimile No.: (416) 842-4023 

To the Guarantor: 
 Newfield
Exploration Company 
 c/o Encana Corporation 

500 Centre Street S.E. 
 P.O. Box
2850 
 Calgary, Alberta T2P 25S 

Attention: Treasury Department 

Facsimile: (403) 645-4613 

or such other address or electronic communication number as may be designated by notice by any party to the other. Any Communication given by personal
delivery or facsimile transmission shall be conclusively deemed to have been given on the day of actual delivery or transmittal thereof and, if given by registered mail, on the third day following the deposit thereof in the mail. If the party giving
any Communication knows or ought reasonably to know of any difficulties with the postal system which might affect the delivery of mail, any such Communication shall not be mailed but shall be given by personal delivery or facsimile transmission.

	9.10	 Assignment 

The rights of the Beneficiaries under this Guarantee may be assigned by the Beneficiaries in accordance with the provisions of the Credit
Agreement and without the consent of the Borrower, its Subsidiaries or the Guarantor during the continuance of an Event of Default and, at all other times, with the prior written consent of the Guarantor (such consent not to be unreasonably
withheld). Subject to Section 10.2(o) of the Credit Agreement, the Guarantor may not assign its obligations under this Guarantee without the prior written consent of the Agent (which consent may be withheld in its sole discretion). 

 

	9.11	 Time of Essence 

Time is of the essence with respect to this Guarantee and the time for performance of the obligations of the Guarantor under this Guarantee may
be strictly enforced by the Beneficiaries. 
  

	9.12	 Financial Condition of the Borrower and the Subsidiaries 

The Guarantor is fully aware of the financial condition of the Borrower and each of the Subsidiaries and acknowledges that it shall receive a
benefit from the Beneficiaries entering into the Loan Documents to which the Beneficiaries are a party. The Guarantor assumes all responsibility for being and keeping itself informed of the Borrower’s and each of the Subsidiaries’
financial condition and assets, and of all other circumstances bearing upon the risk of non-payment or non-performance of the Obligations and the nature, scope and
extent of the risks which Guarantor assumes and incurs hereunder, and agrees that the Beneficiaries shall not have a duty to advise Guarantor of information known to any of them regarding such circumstances or risks. 

 

	9.13	 Acknowledgement of Documentation 

The Guarantor hereby acknowledges receipt of a true and complete copy of the Loan Documents and all of the terms and conditions thereof. 

 

	9.14	 Entire Agreement 

This Guarantee, the Credit Agreement and the other Loan Documents constitute the entire agreement between the Beneficiaries and the Guarantor
with respect to the subject matter hereof and cancel and supersede any prior understandings and agreements between such parties with respect thereto. There are no representations, warranties, terms, conditions, undertakings or collateral agreements,
expressed, implied or statutory, between such parties other than as expressly set forth herein or therein. 
  

	9.15	 Governing Law 

This Guarantee shall be governed by and construed in accordance with the laws of the Province of Alberta and the federal laws of Canada
applicable therein. 
  

	9.16	 Attornment 

The Guarantor and each of the Beneficiaries hereby attorn and submit to the non-exclusive jurisdiction
of the courts of the Province of Alberta in regard to legal proceedings relating to this Guarantee. For the purpose of all such legal proceedings, the courts of the Province of Alberta shall have jurisdiction to entertain any action arising under
this Guarantee. Notwithstanding the foregoing, nothing in this Section shall be construed nor operate to limit the right of the Guarantor or the Beneficiaries to commence any action relating hereto in any other jurisdiction, nor to limit the right
of the courts of any other jurisdiction to take jurisdiction over any action or matter relating hereto. 
 [Remainder of Page
Intentionally Left Blank] 

 IN WITNESS WHEREOF the Guarantor has executed this Guarantee. 

 

			
	NEWFIELD EXPLORATION COMPANY
		
	By:	 	 /s/ David G. Hill

		 	Name: David G. Hill
		 	Title: Vice-President
		
	By:	 	 /s/ Andrew L. Rogers

		 	Name: Andrew L. Rogers
		 	Title: Vice-President

 [Signature Page to Guarantee – Newfield Exploration Company]

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