Document

THIS FOURTH SUPPLEMENTAL INDENTURE, dated as of May 26, 2026 (this “Supplemental Indenture”), is among Weatherford International Ltd., a Bermuda exempted company limited by shares, and Weatherford US Holding, LLC, a Delaware limited liability company (formerly known as Weatherford International, LLC) (each, a “Co-Issuer” and, together, the “Co-Issuers”), the new guarantors listed on the signature pages hereto (each, a “New Guarantor” and, collectively, the “New Guarantors”), Weatherford International plc, an Irish public limited company (the “Parent Guarantor”), and UMB Bank, N.A., as trustee under the Indenture referred to herein (in such capacity, the “Trustee”).

WHEREAS, the Co-Issuers, the Parent Guarantor, the other Guarantors, and the Trustee have heretofore executed and delivered an Indenture, dated as of October 6, 2025 (the “Base Indenture” and, as amended, supplemented, waived, or otherwise modified from time to time as of the date hereof, including, without limitation, by that certain Supplemental Indenture dated as of October 24, 2025, collectively, the “Indenture”), providing for the issuance of an unlimited aggregate principal amount of 6.750% Senior Notes due 2033 of the Co-Issuers (the “Notes”);

WHEREAS, pursuant to Section 9.1(d) of the Base Indenture, the Co-Issuers, the Parent Guarantor, and the Trustee are authorized to execute and deliver this Supplemental Indenture to amend or supplement the Indenture without the consent of any Holder to add any entity as a guarantor of the Notes;

WHEREAS, the Co-Issuers have delivered to the Trustee, and the Trustee has received, accepted and approved from the Co-Issuers, an Officers’ Certificate and an Opinion of Counsel in accordance with Sections 9.1(d), 11.3 and 11.4 of the Base Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, each Co-Issuer, each New Guarantor, the Parent Guarantor and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders as follows:

Section 1.01Defined Terms. As used in this Supplemental Indenture, capitalized terms defined in the Indenture or in the preamble or recitals thereto are used herein as therein defined. The words “herein,” “hereof” and “hereby” and other words of similar import used in this

Section 2.01Agreement to Guarantee. Each New Guarantor hereby agrees to become a Guarantor under the Indenture and to be bound by all of the terms and provisions of the Indenture applicable to Guarantors, including, but not limited to, Article X of the Base Indenture. Each New Guarantor hereby, jointly and severally, fully and unconditionally, with the Parent Guarantor and all other Guarantors, guarantees to each Holder and to the Trustee the Obligations pursuant to Article X of the Base Indenture on the terms and subject to the conditions set forth therein.

Section 3.02Severability Clause. In case any provision in this Supplemental Indenture 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 and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

Section 3.03Ratification of Indenture; Supplemental Indentures Part of Indenture; No Liability of Trustee. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of a Note heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture. Additionally, the Trustee shall not be responsible in any manner whatsoever for or with respect to any of the recitals or statements contained herein, all of which recitals or statements are made solely by the Co-Issuers, the Parent Guarantor and the New Guarantors, and the Trustee makes no representation with respect to any such matters.

Section 3.04Counterparts. This Supplemental Indenture may be executed in two or more counterparts, which when so executed shall constitute one and the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes. The words “execution,” “signed,” “signature,” “delivery,” and words of like import in or relating to this Supplemental Indenture or any document to be signed in connection with this Supplemental Indenture shall be deemed to include electronic signatures,

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 3.05Headings. The headings of the Articles and the sections in this Supplemental Indenture are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

Section 3.06The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Co-Issuers, the Parent Guarantor and the New Guarantors.