WPX ENERGY, INC. 5.25% Senior Notes due 2024

Exhibit 4.3

THIS NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), OR A NOMINEE OF DTC.  THIS NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC, OR BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC, TO THE ISSUER 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.

WPX ENERGY, INC.

5.25% Senior Notes due 2024

CUSIP:  98212B AE3

ISIN: US98212BAE39

WPX ENERGY, INC., a corporation organized and existing under the laws of Delaware (hereinafter called the “Company,” which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to “Cede & Co.”, or registered assigns, the principal sum as set forth in the Schedule of Increases or Decreases In Note attached hereto on September 15, 2024 (such date is hereinafter referred to as the “Maturity Date”), and to pay interest thereon from March 15, 2017 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually in arrears on March 15 and September 15 of each year (each, an “Interest Payment Date”), commencing September 15, 2017 at the rate of 5.25% per annum, until the principal hereof is paid or duly provided for or made available for payment.

The amount of interest payable for any full semi-annual Interest Period will be calculated on the basis of a 360-day year comprised of twelve 30-day months.  The amount of interest payable for any period shorter than a full semi-annual Interest Period will be calculated on the basis of a 30-day month and, for any period less than a month, on the basis of the actual number of days elapsed per 30-day month.  In the event that any scheduled Interest Payment Date falls on a day that is not a Business Day, then payment of interest payable on such Interest Payment Date will be postponed to the next succeeding day which is a Business Day (and no interest on such payment will accrue for the period from and after such scheduled Interest Payment Date).  The term “Business Day” shall mean each day that is not a Saturday, Sunday or other day on which banking institutions in New York, New York or another Place of Payment are authorized or required by law, regulation or executive order to close.  The term “Place of Payment” shall mean the place or places where the principal of, or any premium or interest on, this Note are payable.

The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Note, or any predecessor Note, is registered at the close of business on the Record Date for such Interest Payment Date.

Payment of the principal of, premium, if any, and interest on this Note will be made at the office or agency of the Company maintained for that purpose in the Borough of Manhattan, The City of New York, which shall initially be the Principal Office of the Trustee, acting through the corporate trust office of its affiliate, The Bank of New York Mellon, located at 101 Barclay Street, New York, New York 10286, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that payment of interest due on an Interest Payment Date may be made at the option of the Company by check mailed to the Person entitled thereto at such address as shall appear in the

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Security Register or by wire transfer to an account appropriately designated by the Person entitled to payment, provided that the paying agent shall have received written notice of such account designation at least five Business Days prior to the date of such payment.

Reference is hereby made to the further provisions of this Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place.

Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

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IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

[Signature Page to 5.25% Senior Notes due 2024]

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

This is one of the Securities of the series designated therein described in the within-mentioned Indenture.

[Signature Page to 5.25% Senior Notes due 2024 – Trustee’s Certificate of Authentication]

REVERSE OF NOTE

This Note is one of a duly authorized issue of securities of the Company (herein called the “Notes”), issued and to be issued in one or more series under an Indenture (the “Base Indenture”), dated as of September 8, 2014, between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (herein called the “Trustee,” which term includes any successor trustee), as amended and supplemented by the First Supplemental Indenture, dated as of September 8, 2014, between the Company and the Trustee (the “First Supplemental Indenture,” and the Base Indenture as supplemented by the First Supplemental Indenture, the “Indenture”), to which Indenture reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered.  This Note constitutes a duly authorized issuance of “Additional Securities” under the Indenture relating to the Company’s 5.25% Senior Notes due 2024.  The Company initially issued $500,000,000 aggregate principal amount of such securities under the Indenture on September 8, 2014 (the “Initial Securities”).  This Note shall have the same ranking and the same interest rate, maturity and other terms as the Initial Securities, except for the public offering price, the issue date and the initial interest payment date and initial interest accrual date. This Note, together with the Initial Securities, shall constitute a single series of securities under the Indenture.

All terms used but not defined in this Note that are defined in the Indenture shall have the meaning assigned to them in the Indenture.

Except as otherwise may be specified in the Indenture, at any time or from time to time prior to June 15, 2024, the Company shall have the right to redeem the Notes, in whole or in part, upon not less than 30 days nor more than 60 days’ notice at its option, at a redemption price equal to the greater of:

i.                  100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest thereon to, but excluding, the Redemption Date; and

ii.               as determined by the Quotation Agent, the sum of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed (not including any portion of payments of interest accrued as of the Redemption Date), discounted to the Redemption Date on a semiannual basis (assuming a 360-day year comprised of twelve 30-day months) at the Adjusted Treasury Rate, plus 50 basis points, plus accrued and unpaid interest thereon to but excluding the Redemption Date (provided, in each case, that interest payments due on or prior to the Redemption Date will be paid to the record holders of such Notes on the relevant Record Date).

At any time or from time to time on or after June 15, 2024, the Company shall have the right to redeem the Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest thereon to, but excluding, the Redemption Date (provided, in each case, that interest payments due on or prior to

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the Redemption Date will be paid to the record holders of such Notes on the relevant Record Date).

The term “Optional Redemption Price” means, with respect to any redemption of Notes, the applicable redemption price for such Notes set forth in the preceding two paragraphs; and the term “Redemption Date” means, with respect to any redemption of Notes, the date fixed for such redemption pursuant to the Indenture and the Notes.

The Company shall mail (or otherwise deliver in accordance with the applicable procedures of the Depositary) notice of any redemption to the registered holders of the Notes to be redeemed at least 30 and not more than 60 days prior to the Redemption Date. If Notes are only partially redeemed pursuant to the preceding paragraphs, the Notes to be redeemed will be selected by the Trustee in such manner as in its sole discretion it shall deem appropriate and fair; provided that if at the time of redemption the Notes to be redeemed are registered as a Global Note, the Depositary shall determine, in accordance with its procedures, the principal amount of the Notes to be redeemed held by each of its participants that holds a position in such Notes. The Optional Redemption Price for any Notes to be redeemed shall be paid prior to 12:00 noon, New York City time, on the Redemption Date or at such later time as is then permitted by the rules of the Depositary for the related Notes (if then registered as a Global Note); provided that the Company shall deposit with the Trustee an amount sufficient to pay the Optional Redemption Price for the Notes to be redeemed by 10:00 a.m., New York City time, on the date such Optional Redemption Price is to be paid.

In the event of redemption of this Note in part only, a new Note or Notes for the unredeemed portion hereof shall be issued in the name of the holder hereof upon the cancellation hereof. Except as set forth in the preceding paragraphs and in Article 3 of the First Supplemental Indenture, the Company may not redeem the Notes at its option prior to the Maturity Date.

Upon a Change of Control Triggering Event, the Company may be required to offer to repurchase all or any part of the Notes.

The Notes are not entitled to the benefit of any sinking fund.

The Indenture contains provisions for defeasance of the obligations of the Company at any time upon compliance by the Company with certain conditions set forth therein, which provisions apply to the Notes.

If an Event of Default with respect to Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the holders of the Notes at any time by the Company and the Trustee, with the consent of the holders of a majority in the aggregate principal amount of the Securities of each series affected thereby at the time Outstanding, voting as a single class.  The Indenture also contains provisions permitting the holders of specified percentages in principal amount of the Notes at the time Outstanding, on behalf of the holders of all Notes, to waive certain past defaults under the Indenture and their

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consequences.  Any such consent or waiver by the holder of this Note shall be conclusive and binding upon such holder and upon all future holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registrable in the Security Register, upon surrender of this Note for registration of transfer at the office or agency of the Company in any place where the principal of and interest on this Note are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by the holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

The Notes are issuable only in registered form without coupons in minimum denominations of $2,000 and any integral multiple of $1,000 in excess thereof, except as provided for in Section 2.04 of the First Supplemental Indenture.  As provided in the Indenture and subject to certain limitations therein set forth, the Notes are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the holder surrendering the same.

No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

The Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Note is registered as the owner hereof for all purposes, whether or not this Note is overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

THIS NOTE, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS NOTE, SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

The Company will furnish a copy of the Indenture to any holder upon written request and without charge.

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ASSIGNMENT

SIGNATURE GUARANTEE

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Security Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Security Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

SCHEDULE OF INCREASES OR DECREASES IN NOTE

The initial principal amount of this Note is $150,000,000.  The following increases or decreases in the principal amount of this Note have been made: