Exhibit 1.1

EXXON MOBIL CORPORATION

Company

EXXONMOBIL HOLDINGS CORPORATION

Parent Guarantor

UNDERWRITING AGREEMENT

STANDARD PROVISIONS

(DEBT SECURITIES)

September 23, 2026

From time to time, EXXON MOBIL CORPORATION, a New Jersey corporation (the “Company”) and EXXONMOBIL HOLDINGS CORPORATION, a Texas corporation (the “Parent Guarantor”), may enter into one or more underwriting agreements that provide for the sale of debt securities to the several underwriters named therein. The standard provisions set forth herein may be incorporated by reference in any such underwriting agreement (an “Underwriting Agreement”). The Underwriting Agreement, including the provisions incorporated therein by reference, is herein referred to as this Agreement. Unless otherwise defined herein, terms defined in the Underwriting Agreement are used herein as therein defined.

I.

The Company proposes to issue and sell from time to time certain of its debt securities (the “Debt Securities”) to be issued pursuant to the provisions of an Indenture, as supplemented (the “Indenture”), to be entered among the Company, the Parent Guarantor and Deutsche Bank Trust Company Americas as Trustee (the “Trustee”). The Debt Securities, which are to be fully and unconditionally guaranteed by the Parent Guarantor (the “Guarantee”), to be sold pursuant to this Agreement are referred to herein as the “Offered Securities”. The Debt Securities will have or be of varying designations, maturities, rates and times of payment of interest, selling prices, expiration dates, redemption terms, currencies and other terms.

The Company and the Parent Guarantor (together, the “Obligors”) have filed with the Securities and Exchange Commission (the “Commission”) a registration statement relating to the Debt Securities, have filed such amendments thereto as may have been required prior to the date of the Underwriting Agreement and have filed with, or shall promptly hereafter file with, the Commission a prospectus supplement specifically relating to the Offered Securities pursuant to Rule 424 under the Securities Act of 1933, as amended (the “Securities Act”). The term “Registration Statement” means such registration statement as amended to the date of the Underwriting Agreement and any additional information contained in a form of prospectus or prospectus supplement that is deemed retroactively to be a part of the Registration Statement pursuant to Rule 430B under the Securities Act. The term “Basic Prospectus” means the prospectus included in the Registration Statement relating to the Debt Securities, as updated from time to time. The term “Prospectus” means the Basic Prospectus together with the prospectus supplement specifically relating to the Offered Securities, as filed with, or as shall promptly hereafter be filed with, the Commission pursuant to Rule 424 under the Securities Act. The term “preliminary prospectus” means a preliminary prospectus supplement specifically relating to the Offered Securities, together with the Basic Prospectus. As used herein, the terms “Registration Statement”, “Basic Prospectus”, “Prospectus” and “preliminary prospectus” shall include in each case the material, if any, incorporated by reference therein.

In addition, the following terms shall have the meanings ascribed to them below for purposes of this Agreement:

“General Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is intended for general distribution to prospective investors, as evidenced by its being specified in Schedule A to the Underwriting Agreement.

“Issuer Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in Rule 433 under the Securities Act, relating to the Offered Securities in the form filed or required to be filed with the Commission by the Company or the Parent Guarantor or, if not required to be filed, in the form retained in the Company’s or the Parent Guarantor’s records pursuant to Rule 433(g) under the Securities Act.

“Limited Use Free Writing Prospectus” means any Issuer Free Writing Prospectus that is not a General Use Free Writing Prospectus.

“Rules” means the rules promulgated under the Securities Act. “Statutory Prospectus” means the prospectus relating to the Offered Securities that is included in the Registration Statement in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Offered Securities, including any document incorporated by reference therein and any prospectus or prospectus supplement deemed to be a part thereof that has not been superseded or modified. For purposes of this definition, information contained in a form of prospectus (including a prospectus supplement) that is deemed retroactively to be a part of the Registration Statement pursuant to Rule 430B under the Securities Act shall be considered to be included in the Statutory Prospectus only as of the actual time that form of prospectus (including a prospectus supplement) is filed with the Commission pursuant to Rule 424(b) under the Securities Act.

“Time of Sale” means the time when sales of the Offered Securities are first made.

“Time of Sale Information” means the most recent preliminary prospectus related to the Offered Securities at the Time of Sale, together with the Basic Prospectus and each General Use Free Writing Prospectus issued at or prior to the Time of Sale.

II.

The Obligors are advised by the Manager that the Underwriters propose to make a public offering of their respective portions of the Offered Securities as soon after this Agreement is entered into as in the Manager’s judgment is advisable. The terms of the public offering of the Offered Securities are set forth in the Prospectus.

III.

Payment for the Offered Securities shall be made by wire transfer to an account designated by the Company in immediately available funds at the time, on the date and at the place set forth in the Underwriting Agreement, upon delivery to the Manager for the respective accounts of the several Underwriters of the Offered Securities (other than Debt Securities in registered global form) registered in such names and in such denominations as the Manager shall request in writing not less than two full business days prior to the date of delivery and, in the case of Offered Securities that are Debt Securities in registered global form, upon delivery to the Depositary identified in the Underwriting Agreement of one or more global Debt Security certificates, registered in the name of the Depositary or a nominee thereof, for credit to the respective accounts of the Depositary participants. The time and date of such payment and delivery with respect to the Offered Securities are herein referred to as the Closing Date.

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IV.

The several obligations of the Underwriters hereunder are subject to the following conditions:

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V.

In further consideration of the agreements of the Underwriters contained in this Agreement, each Obligor, jointly and severally, agrees as follows:

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VI.

provided that no such offer of the Offered Securities shall require the Company or any Underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Regulation, to supplement a prospectus pursuant to Article 23 of the Prospectus Regulation, or to publish a document containing the information set out in Annex IX to the Prospectus Regulation.

For the purposes of this provision, the expression an “offer to the public” in relation to any Offered Securities in any Relevant Member State shall have the meaning ascribed to it in Article 2(d) of the Prospectus Regulation, and the expression “Prospectus Regulation” means Regulation (EU) 2017/1129, as amended.

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VII.

Each Obligor, jointly and severally, represents and warrants to each Underwriter that:

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Each Obligor, jointly and severally, represents, warrants and agrees that, unless it obtains the prior consent of the Manager, and each Underwriter represents, warrants and agrees that, unless it obtains the prior consent of the Obligors and the Manager, it has not made and will not make any offer relating to the Offered Securities that would constitute an Issuer Free Writing Prospectus, or that would otherwise constitute a “free writing prospectus,” as defined in Rule 405 under the Securities Act, required to be filed with the Commission. Notwithstanding the preceding sentence, the Obligors hereby consent to the provision by the Underwriters of a Term Sheet, the form of which is set forth in Schedule B to the Underwriting Agreement.

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VIII.

The Obligors, jointly and severally, agree to indemnify and hold harmless each Underwriter, such Underwriter’s selling agents who have participated or are deemed to have participated in the distribution of the Offered Securities, such Underwriter’s directors, officers and employees, and each person, if any, who controls such Underwriter within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities caused by any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, any preliminary prospectus, any Statutory Prospectus, the Prospectus (if used within the period set forth in paragraph (c) of Article V hereof and as amended or supplemented if the Obligors shall have furnished any amendments or supplements thereto), the Time of Sale Information or any Issuer Free Writing Prospectus, or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as such losses, claims, damages or liabilities are caused by any such untrue statement or omission or alleged untrue statement or omission based upon information furnished in writing to the Obligors by any Underwriter expressly for use therein.

Each Underwriter severally and not jointly agrees to indemnify and hold harmless the Obligors, their directors, officers and employees, and any person controlling either Obligor to the same extent as the foregoing indemnity from the Obligors to each Underwriter, but only with reference to information relating to such Underwriter furnished in writing by such Underwriter expressly for use in the Registration Statement, any preliminary prospectus, any Statutory Prospectus, the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus.

In case any proceeding (including any governmental investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to either of the two preceding paragraphs, such person (the “indemnified party”) shall promptly notify the person against whom such indemnity may be sought (the “indemnifying party”) in writing and the indemnifying party, upon request of the indemnified party, shall retain counsel reasonably satisfactory to the indemnified party to represent the indemnified party and any others the indemnifying party may designate in such proceeding and shall pay the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such indemnified party unless (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel or (ii) the named parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and the representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood that the indemnifying party shall not, in connection with any proceeding or related proceedings in the same jurisdiction, be liable for the reasonable fees and expenses of more than one separate firm (in addition to local counsel) for all such indemnified parties, and that all such fees shall be reimbursed as they are incurred. Such firm shall be designated in writing by the Manager in the case of parties indemnified pursuant to the second preceding paragraph and by the Obligors in the case of parties indemnified pursuant to the first preceding paragraph. The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent but if settled with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or liability by reason of such settlement or judgment.

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If the indemnification provided for in this Article VIII is unavailable to an indemnified party under the first or second paragraphs hereof or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each indemnifying party, in lieu of indemnifying such indemnified party, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities in such proportion as is appropriate to reflect (i) the relative benefits received by the Obligors on the one hand and the Underwriters on the other from the offering of the Offered Securities and (ii) the relative fault of the Obligors on the one hand and of the Underwriters on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Obligors on the one hand and the Underwriters on the other in connection with the offering of the Offered Securities shall be deemed to be in the same proportion as the total net proceeds from the offering of such Offered Securities (before deducting expenses) received by the Obligors bear to the total underwriting discounts and commissions received by the Underwriters in respect thereof. The relative fault of the Obligors on the one hand and of the Underwriters on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Obligors or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

The Obligors and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Article VIII were determined by pro rata allocation or by any other method of allocation which does not take account of the considerations referred to in the immediately preceding paragraph. The amount paid or payable by an indemnified party as a result of the losses, claims, damages and liabilities referred to in the immediately preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Article VIII, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Offered Securities underwritten and distributed to the public by such Underwriter were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Article VIII are several, in proportion to the respective principal amount or number, as the case may be, of Offered Securities purchased by each of such Underwriters, and not joint.

The indemnity and contribution agreements contained in this Article VIII and the representations and warranties of the Company and the Parent Guarantor in this Agreement shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by any Underwriter or on behalf of any Underwriter or any person controlling any Underwriter or by or on behalf of the Obligors, its directors or officers or any person controlling the Obligors and (iii) acceptance of and payment for any of the Offered Securities.

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IX.

This Agreement may be terminated in the absolute discretion of the Manager, by notice to the Company, if after the execution and delivery of this Agreement and prior to the Closing Date (i) trading generally shall have been suspended or materially limited on the New York Stock Exchange; (ii) trading of any securities issued by the Company shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities; (iv) a material disruption of the settlement or clearance of debt securities in the United States shall occur and continue until at least the business day preceding the Closing Date or (v) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the reasonable judgment of the Manager, is material and adverse and makes it impracticable or inadvisable to proceed with the offer, sale or delivery of the Offered Securities on the terms and in the manner contemplated by this Agreement and the Prospectus.

X.

If any one or more of the Underwriters shall fail or refuse to purchase any Offered Securities which it or they have agreed to purchase pursuant to the Underwriting Agreement, and the aggregate amount of such Offered Securities which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase is not more than one-tenth of the aggregate amount of the Offered Securities, the other Underwriters shall be obligated severally in the proportions which the amounts of Offered Securities set forth opposite their names in the Underwriting Agreement bear to the aggregate amount of Offered Securities set forth opposite the names of all such non-defaulting Underwriters, or in such other proportions as the Manager may specify, to purchase the Offered Securities which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase; provided that in no event shall the amount of Offered Securities which any Underwriter has agreed to purchase pursuant to the Underwriting Agreement be increased pursuant to this Article X by an amount in excess of one-ninth of such amount of Offered Securities without the written consent of such Underwriter. If any Underwriter or Underwriters shall fail or refuse to purchase any Offered Securities and the aggregate amount of Offered Securities with respect to which such default occurs is more than one-tenth of the aggregate amount of the Offered Securities and arrangements satisfactory to the Manager and the Company for the purchase of such Offered Securities are not made within 36 hours after such default, this Agreement, or the provisions hereof applicable to the sale and purchase of the Offered Securities, will terminate without liability on the part of any non-defaulting Underwriter or of the Company. In any such case either the Manager or the Company shall have the right to postpone the Closing Date, but in no event for longer than seven days, in order that the required changes, if any, in the Registration Statement and in the Prospectus or in any other documents or arrangements may be effected. Any action taken under this paragraph shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under the Underwriting Agreement.

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XI.

If this Agreement shall be terminated by the Underwriters or any of them, because of any failure or refusal on the part of the Obligors to comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Obligors shall be unable to perform their respective obligations under this Agreement, the Obligors, jointly and severally, will reimburse the Underwriters or such Underwriters as have so terminated this Agreement, with respect to themselves, severally, for all out-of-pocket expenses (including the fees and disbursements of their counsel) reasonably incurred by such Underwriters in connection with the Offered Securities.

XII.

The Obligors acknowledge and agree that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Obligors with respect to the offering of Offered Securities (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Obligors or any other person. Additionally, no Underwriter is advising the Obligors or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction.

The Obligors shall consult with their own advisors concerning such matters and shall be responsible for making their own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall have no responsibility or liability to the Obligors with respect thereto. Any review by the Underwriters of the Obligors, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Obligors.

XIII.

In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

The term “BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k). The term “Covered Entity” means any of the following: (i) a “covered entity” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b), (ii) a “covered bank” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b) or (iii) a “covered FSI” as that term is

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defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b). The term “Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable. The term “U.S. Special Resolution Regime” means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

XIV.

This Agreement may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument.

This Agreement shall be governed by and construed in accordance with the internal laws of the State of New York.

EACH OBLIGOR AND EACH OF THE UNDERWRITERS HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

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EXHIBIT A

FORM OF OPINION OF COUNSEL – CORPORATE OF THE OBLIGORS

A-1

A-2

EXHIBIT B

FORM OF OPINION OF COUNSEL FOR THE OBLIGORS

B-1

B-2

Exhibit 1.2

Execution Version

UNDERWRITING AGREEMENT

September 23, 2026

Exxon Mobil Corporation

ExxonMobil Holdings Corporation

22777 Springwoods Village Parkway

Spring, Texas 77389-1425

Ladies and Gentlemen:

We (collectively, the “Manager”) understand that Exxon Mobil Corporation, a New Jersey corporation (the “Company”), proposes to issue and sell $185,883,000 aggregate principal amount of its Floating Rate Notes due 2076 (the “Notes”), which are to be fully and unconditionally guaranteed (the “Guarantee” and, together with the Notes, the “Offered Securities”), by ExxonMobil Holdings Corporation, a Texas corporation (the “Parent Guarantor”).

Subject to the terms and conditions set forth herein or incorporated by reference herein, the Company hereby agrees to sell and the underwriters named below (the “Underwriters”) severally agree to purchase the Notes at 99.000% of the principal amount of such Notes and accrued interest from September 25, 2026, if any, to the date of payment and delivery.

Upon delivery of such Offered Securities, the Underwriters will pay for such Offered Securities at a closing to be held at the offices of Davis Polk & Wardwell LLP, 450 Lexington Avenue, New York, New York 10017 at 10:00 a.m. (New York time) on September 25, 2026, or at such other time as shall be designated by the Manager.

The Offered Securities will have the terms and conditions set forth in “Description of Notes” in the prospectus supplement for the Offered Securities, to be dated September 23, 2026 (the “prospectus supplement”), and terms defined therein will have the same meanings when used in this underwriting agreement (this “Agreement”). The following is a summary of such terms and conditions for the Offered Securities:

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For purposes of Article VIII of the Standard Provisions (as defined below), we confirm that we have furnished to the Company and the Parent Guarantor (collectively, the “Obligors”), for use in the preliminary prospectus supplement for the Offered Securities dated September 21, 2026 (the “preliminary prospectus supplement”) and the prospectus supplement:

(a) The second and third sentence of the third paragraph of text under “Underwriting” in such preliminary prospectus supplement and prospectus supplement, concerning the dealer concessions and reallowances;

(b) The first, second, third and fourth sentence of the sixth paragraph of text under “Underwriting” in such preliminary prospectus supplement and prospectus supplement, concerning short sales, stabilizing transactions and purchases to cover positions created by short sale by the Underwriters;

(c) The fourth sentence of the seventh paragraph of text under “Underwriting” in such preliminary prospectus supplement and prospectus supplement, concerning market making by the Underwriters; and

(d) The third and fourth sentence of the eleventh paragraph of text under “Underwriting” in such preliminary prospectus supplement and prospectus supplement, concerning other relationships between the Underwriters or their affiliates and the Obligors.

All provisions contained in that certain document entitled “Underwriting Agreement Standard Provisions (Debt Securities)” of the Company and the Parent Guarantor, dated September 23, 2026 (the “Standard Provisions”), are herein incorporated by reference in their entirety and shall be deemed to be a part of this Agreement to the same extent as if such provisions had been set forth in full herein. Notwithstanding the preceding sentence, in the event of any conflict between the Standard Provisions and this Agreement, the provisions of this Agreement shall control.

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The term “Depositary” as used therein shall mean The Depository Trust Company, and the term “Manager” as used therein shall mean RBC Capital Markets, LLC, Deutsche Bank Securities Inc., J.P. Morgan Securities LLC, Morgan Stanley & Co. LLC and UBS Securities LLC, whose authority thereunder may be exercised by them jointly.

This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument. Counterparts may be delivered via facsimile, electronic mail (including any electronic signature covered by the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or other applicable law, e.g., www.docusign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

[The remainder of this page intentionally left blank; signature pages follow].

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[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

[Signature Page to Underwriting Agreement]

Schedule A

General Use Free Writing Prospectuses

A-1

Schedule B

See attached.

B-1

Pricing Term Sheet

Exxon Mobil Corporation

$185,883,000 Floating Rate Notes due 2076

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*Note: We expect that delivery of the Notes will be made to investors on or about September 25, 2026, which will be the second business day following the time of sale (this settlement cycle being referred to as “T+2”). Under Rule 15c6-1 under the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in one business day unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes prior to one business day before delivery of the Notes hereunder will be required, by virtue of the fact that the Notes initially will settle in T+2, to specify an alternative settlement cycle at the time of any such trade to prevent a failed settlement. Purchasers of the Notes who wish to trade the Notes prior to one business day before delivery of the Notes hereunder should consult their own advisors.

**Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

The Company and the Parent Guarantor have filed a registration statement (including a preliminary prospectus supplement and an accompanying prospectus) with the Securities and Exchange Commission (the “SEC”) for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents that the Company and the Parent Guarantor have filed with the SEC, including the preliminary prospectus supplement, for more complete information about the Company and this offering. You may get these documents for free by visiting the SEC website at www.sec.gov. Alternatively, the Company, any underwriter or any dealer participating in the offering will arrange to send you the preliminary prospectus supplement and the accompanying prospectus if you request it by contacting: RBC Capital Markets, LLC toll-free at 1-866-375-6829; Deutsche Bank Securities Inc. toll-free at 1-800-503-4611; J.P. Morgan Securities LLC at 1-212-834-4533; Morgan Stanley & Co. LLC toll-free at 1-866-718-1649; or UBS Securities LLC toll-free at 1-833-481-0269.

Any disclaimers or other notices that may appear below are not applicable to this communication and should be disregarded. Such disclaimers or other notices were automatically generated as a result of this communication being sent via Bloomberg or another email system.

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Exhibit 4.4

OFFICER’S CERTIFICATE PURSUANT TO

SECTIONS 3.01 AND 3.03 OF THE INDENTURE IDENTIFIED BELOW

Each of the undersigned officers of Exxon Mobil Corporation (the “Company”) and ExxonMobil Holdings Corporation (the “Parent Guarantor”), acting pursuant to authorizations contained in resolutions of the Board of Directors of the Company duly adopted on January 27, 2026 and resolutions of the Board of Directors of the Parent Guarantor duly adopted May 27, 2026, respectively, does hereby authorize, adopt and approve the following terms for a series of the Company’s debt securities designated as “Floating Rate Notes due 2076” (the “Notes”), to be issued under an indenture dated as of March 20, 2014 (the “Base Indenture”) between the Company and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”), as amended and supplemented by a first supplemental indenture dated as of June 26, 2020 (the “First Supplemental Indenture”) between the Company and the Trustee and as further amended and supplemented by a second supplemental indenture dated as of July 1, 2026 (together with the Base Indenture and First Supplemental Indenture, as further amended, supplemented or otherwise modified, the “Indenture”), among the Company, the Parent Guarantor and the Trustee, which Notes have been registered for sale with the Securities and Exchange Commission pursuant to a Registration Statement on Form S-3 (No. 333-293558) under the Securities Act of 1933, as amended, as amended by Amendment No. 1 thereto. The Notes are to be fully and unconditionally guaranteed by the Parent Guarantor. Capitalized terms used but not defined herein shall have the meanings set forth in the Indenture.

I. The Notes are entitled “Floating Rate Notes due 2076.”

II. The Notes are limited in aggregate principal amount to U.S. $185,883,000, subject to (i) the Company’s right from time to time, without giving notice to or seeking the consent of the Holders of the Notes, to issue an unlimited amount of additional securities having the same ranking and the same interest rate, maturity and other terms as the Notes other than issue date, issue price and the payment of interest accruing prior to the issue date of the additional securities (such additional securities having such similar terms, together with the Notes, constituting a single series of securities under the Indenture); provided that if such additional securities are not fungible with the then-outstanding Notes for U.S. federal income tax purposes, the additional securities shall have a separate CUSIP, ISIN or other identifying number, as applicable, and (ii) Notes authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Notes pursuant to the provisions of the Indenture.

III. The Notes shall mature on September 25, 2076, subject to the provisions of the Indenture and this Officer’s Certificate relating to acceleration and subject to the provisions of the Indenture and this Officer’s Certificate relating to optional redemption, repayment and shortened maturity date.

A “Business Day” means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which banking institutions in New York City (or other Place of Payment specified pursuant to the Indenture) are authorized or obligated by law or executive order to close.

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IV. Interest on the Notes

The Notes shall bear interest at a floating rate per annum equal to Compounded SOFR (as defined herein) minus 0.450% (negative 0.450%, the “Margin”) payable quarterly in arrears on March 25, June 25, September 25 and December 25 of each year, commencing on December 25, 2026, to the persons in whose names such Notes were registered at the close of business on the immediately preceding March 10, June 10, September 10 and December 10, respectively (whether or not a Business Day).

Interest on the Notes shall be computed on the basis of a 360-day year and the actual number of days in the Observation Period (as defined herein). If any Interest Payment Date falls on a day that is not a Business Day, the Company shall make the interest payment on the next succeeding Business Day unless that Business Day is in the next succeeding calendar month, in which case (other than in the case of the maturity date, a redemption date or a repayment date) the Company shall make the interest payment on the immediately preceding Business Day. If an interest payment is made on the next succeeding Business Day, no interest shall accrue as a result of the delay in payment. If the maturity date, a redemption date or a repayment date of the Notes falls on a day that is not a Business Day, the payment due on such date shall be postponed to the next succeeding Business Day, and no further interest shall accrue in respect of such postponement.

On each Interest Payment Determination Date (as defined herein) relating to the applicable Interest Payment Date, the Calculation Agent shall calculate the amount of accrued interest payable on the Notes by multiplying (i) the outstanding principal amount of the Notes by (ii) the product of (a) the interest rate for the relevant interest period multiplied by (b) the quotient of the actual number of calendar days in such Observation Period divided by 360. In no event shall the interest rate on the Notes be less than zero.

The term “interest period,” with respect to the Notes, means (i) the period from and including any Interest Payment Date (or, with respect to the initial interest period only, from and including September 25, 2026) to but excluding the next succeeding Interest Payment Date, (ii) in the case of the last such period, the period from and including the Interest Payment Date immediately preceding the maturity date to but excluding the maturity date, or (iii) in the event of any redemption or repayment of the Notes, the period from and including the Interest Payment Date immediately preceding the applicable redemption or repayment date to but excluding such date.

Compounded SOFR

“Compounded SOFR” shall be determined by the Calculation Agent in accordance with the following formula (and the resulting percentage shall be rounded, if necessary, to the nearest one hundred-thousandth of a percentage point):

2

where:

“SOFR Index_Start” = For periods other than the initial interest period, the SOFR Index value on the preceding Interest Payment Determination Date, and, for the initial interest period, the SOFR Index value on September 23, 2026;

“SOFR Index_End” = The SOFR Index value on the Interest Payment Determination Date relating to the applicable Interest Payment Date (or, in the final interest period, relating to the maturity date, or in the case of a redemption or repayment of the Notes, relating to the applicable redemption or repayment date); and

“d_c” is the number of calendar days in the relevant Observation Period.

For purposes of determining Compounded SOFR:

“Interest Payment Determination Date” means the date that is two U.S. Government Securities Business Days before each Interest Payment Date (or, in the final interest period, before the maturity date or, in the case of a redemption or repayment of the Notes, before the applicable redemption or repayment date).

“Observation Period” means, in respect of each interest period, the period from and including the date that is two U.S. Government Securities Business Days preceding the first date in such interest period to but excluding the date that is two U.S. Government Securities Business Days preceding the Interest Payment Date for such interest period (or, in the final interest period, preceding the maturity date or, in the case of a redemption or repayment of the Notes, preceding the applicable redemption or repayment date).

“SOFR Index” means, with respect to any U.S. Government Securities Business Day, the SOFR Index value as published by the SOFR Administrator as such index appears on the SOFR Administrator’s Website at 3:00 p.m. (New York time) on such U.S. Government Securities Business Day (the “SOFR Index Determination Time”); provided that if a SOFR Index value does not so appear as specified above at the SOFR Index Determination Time, then: (i) if a Benchmark Transition Event (as defined herein) and its related Benchmark Replacement Date (as defined herein) have not occurred with respect to SOFR, then Compounded SOFR shall be the rate determined pursuant to the “SOFR Index Unavailable Provisions” described below, or (ii) if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to SOFR, then Compounded SOFR shall be the rate determined pursuant to the “—Effect of Benchmark Transition Event” provisions described below.

“SOFR” means the daily secured overnight financing rate as provided by the SOFR Administrator on the SOFR Administrator’s Website.

“SOFR Administrator” means the Federal Reserve Bank of New York (or a successor administrator of SOFR).

“SOFR Administrator’s Website” means the website of the Federal Reserve Bank of New York, currently at http://www.newyorkfed.org, or any successor source.

“U.S. Government Securities Business Day” means any day except for a Saturday, a Sunday or a day on which the Securities Industry and Financial Markets Association recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

3

Notwithstanding anything to the contrary in the documentation relating to the Notes, if the Company (or its designee) determines on or prior to the relevant Reference Time (as defined herein) that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to determining Compounded SOFR, then the benchmark replacement provisions set forth below under “—Effect of Benchmark Transition Event” shall thereafter apply to all determinations of the rate of interest payable on the Notes.

For the avoidance of doubt, in accordance with the benchmark replacement provisions, after a Benchmark Transition Event and its related Benchmark Replacement Date have occurred, the interest rate for each interest period on the Notes shall be an annual rate equal to the sum of the Benchmark Replacement and the Margin.

SOFR Index Unavailable Provisions

If a SOFR Index_Start or SOFR Index_End is not published on the associated Interest Payment Determination Date and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred with respect to SOFR, “Compounded SOFR” means, for the applicable interest period for which such index is not available, the rate of return on a daily compounded interest investment calculated in accordance with the formula for SOFR averages, and definitions required for such formula, published on the SOFR Administrator’s Website, initially located at https://www.newyorkfed.org/markets/treasury-repo-reference-rates-information. For the purposes of this provision, references in the SOFR averages compounding formula and related definitions to “calculation period” shall be replaced with “Observation Period” and the words “that is, 30-, 90-, or 180-calendar days” shall be removed. If SOFR does not so appear for any day “i” in the Observation Period, SOFRi for such day “i” shall be SOFR published in respect of the first preceding U.S. Government Securities Business Day for which SOFR was published on the SOFR Administrator’s Website.

Effect of Benchmark Transition Event

Benchmark Replacement. If the Company (or its designee) determines that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred prior to the Reference Time in respect of any determination of the Benchmark (as defined herein) on any date, the Benchmark Replacement shall replace the then-current Benchmark for all purposes relating to the Notes in respect of such determination on such date and all determinations on all subsequent dates.

Benchmark Replacement Conforming Changes. In connection with the implementation of a Benchmark Replacement, the Company (or its designee) shall have the right to make Benchmark Replacement Conforming Changes (as defined herein) from time to time.

4

Decisions and Determinations. Any determination, decision or election that may be made by the Company (or its designee) pursuant to the benchmark replacement provisions described in this subsection “—Effect of Benchmark Transition Event,” including any determination with respect to tenor, rate or adjustment or of the occurrence or non-occurrence of an event, circumstance or date and any decision to take or refrain from taking any action or any selection, shall be conclusive and binding absent manifest error, shall be made in the Company’s (or its designee’s) sole discretion, and, notwithstanding anything to the contrary in the documentation relating to the Notes, shall become effective without consent from the Holders of the Notes or any other party.

Certain Defined Terms. As used herein, the following terms have the following meanings:

“Benchmark” means, initially, Compounded SOFR, as such term is defined above; provided that if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to Compounded SOFR (or the published SOFR Index used in the calculation thereof) or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement.

“Benchmark Replacement” means the first alternative set forth in the order below that can be determined by the Company (or its designee) as of the Benchmark Replacement Date:

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the Company (or its designee) as of the Benchmark Replacement Date:

5

The Benchmark Replacement Adjustment shall not include the Margin specified herein and such Margin shall be applied to the Benchmark Replacement to determine the interest payable on the Notes.

“Benchmark Replacement Conforming Changes” means, with respect to any Benchmark Replacement, any technical, administrative or operational changes (including changes to the definitions or interpretations of “interest period,” the timing and frequency of determining rates and making payments of interest, the rounding of amounts or tenors, and other administrative matters) that the Company (or its designee) decides may be appropriate to reflect the adoption of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Company (or its designee) decides that adoption of any portion of such market practice is not administratively feasible or if the Company (or its designee) determines that no market practice for use of the Benchmark Replacement exists, in such other manner as the Company (or its designee) determines is reasonably necessary or practicable).

“Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date shall be deemed to have occurred prior to the Reference Time for such determination.

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

6

“ISDA Definitions” means the 2021 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time.

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor.

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment.

“Reference Time” with respect to any determination of the Benchmark means (1) if the Benchmark is Compounded SOFR, the SOFR Index Determination Time, as such time is defined above, and (2) if the Benchmark is not Compounded SOFR, the time determined by the Company (or its designee) in accordance with the Benchmark Replacement Conforming Changes.

“Relevant Governmental Body” means the Federal Reserve Board and/or the Federal Reserve Bank of New York, or a committee officially endorsed or convened by the Federal Reserve Board and/or the Federal Reserve Bank of New York or any successor thereto.

“Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment.

All determinations made by the Calculation Agent shall, in the absence of manifest error, be conclusive for all purposes and binding on us and the Holders of the Notes. So long as Compounded SOFR is required to be determined with respect to the Notes, there will at all times be a Calculation Agent. In the event that any then acting Calculation Agent shall be unable or unwilling to act, or that such Calculation Agent shall fail duly to establish Compounded SOFR for any interest period, or the Company proposes to remove such Calculation Agent, the Company shall appoint another Calculation Agent.

V. Principal and interest on the Notes shall be payable, and the Notes may be surrendered for registration of transfer or exchange, at the office or agency of the Company maintained for that purpose, pursuant to the Indenture, which shall initially be the Corporate Trust Office of the Trustee located at 1 Columbus Circle, 4^th Floor, Mail Stop: NYC01-0417, New York, New York 10019, 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 debt.

7

The Company, by or through the Trustee, may at its option pay interest by United States dollar check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register; provided, however, that payments in connection with Global Securities to The Depository Trust Company (“DTC”) shall be made by wire transfer of immediately available funds to the account of DTC or its nominee.

VI. Any or all of the Notes may be redeemed at the Company’s option at any time or from time to time, in amounts of $1,000 or any multiple of $1,000 in excess thereof, at the following redemption prices (in each case expressed as a percentage of the principal amount), if redeemed during the twelve-month periods beginning on September 25 as set forth below:

and thereafter at 100.000% of the principal amount, in each case, together with any accrued and unpaid interest thereon to but excluding the redemption date.

The Company shall send notice of any redemption at least 10 days but not more than 60 days before the redemption date to each registered Holder of the Notes to be redeemed, with such notice to be sent in accordance with the provisions of the Indenture. Once notice of redemption is sent, the Notes called for redemption shall become due and payable on the redemption date and at the applicable redemption price, plus accrued and unpaid interest to the redemption date, subject to any conditions precedent specified in such notice.

On and after the redemption date, interest shall cease to accrue on the Notes or any portion of the Notes called for redemption (unless the Company defaults in the payment of the redemption price and accrued interest). On or before the redemption date, the Company shall deposit with a paying agent or the Trustee money sufficient to pay the redemption price of and accrued interest on the Notes to be redeemed on that date. If less than all of the Notes are to be redeemed, the Notes to be redeemed shall be selected by the Trustee pro rata, by lot, or by such other method the Trustee deems to be fair and appropriate, in each case in accordance with the applicable procedures of DTC.

8

VII. The Notes shall be repayable at the option of a Holder of the Notes, in whole or in part, on the repayment dates and at the repayment prices (in each case expressed as a percentage of the principal amount) as set forth below:

and on September 25 of every second year thereafter, through and including September 25, 2073, at 100.000% of the principal amount, in each case, together with any accrued and unpaid interest thereon to but excluding the repayment date.

In order for a Note to be repaid at the option of a Holder, the Trustee must receive, at least 30 but not more than 60 days before the optional repayment date,

9

The repayment option may be exercised by the Holder of a Note for less than the entire principal amount of the Note but, in that event, the principal amount of the Note remaining outstanding after repayment must be in an authorized denomination.

VIII. If a tax event (as defined herein) occurs, the Company shall have the right to shorten the maturity of the Notes, without the consent of the Holders of the Notes,

in each case, to the extent deductible under current law, as determined in good faith by the Company’s Board of Directors, after receipt of an opinion of that counsel regarding the applicable legal standards. In that case, the amount payable on the Notes on that new maturity date shall be equal to 100.000% of the principal amount of the Notes, together with any accrued and unpaid interest thereon to but excluding that new maturity date.

If the Company elects to exercise its right to shorten the maturity of the Notes when a tax event occurs, the Company shall give notice to each Holder of the Notes not more than 60 days after the occurrence of the tax event, stating the new maturity date of the Notes. If the Notes are solely registered in the name of Cede & Co. and traded through DTC, then such notice shall be delivered to DTC, and transmitted by DTC in accordance with its practices.

“Tax event” means that the Company shall have received an opinion of nationally recognized independent tax counsel to the effect that, as a result of:

10

in each case, occurring on or after September 23, 2026, there is more than an insubstantial increase in the risk that interest the Company pays on the Notes is not, or will not be, deductible, in whole or in part, by the Company for U.S. federal income tax purposes.

For the avoidance of doubt, following the exercise by the Company of its right to shorten the maturity of the Notes when a tax event occurs, any references to “maturity date” herein shall refer to the new maturity date of the Notes.

IX. The Notes shall not be entitled to the benefit of any mandatory redemption or sinking fund.

X. The Notes shall be issued only in denominations of $1,000 and integral multiples thereof.

XI. The Trustee, Paying Agent and Security Registrar and the Calculation Agent for the Notes shall initially be Deutsche Bank Trust Company Americas.

XII. Upon issuance, the Notes of each series shall be represented by one or more global Securities representing all of the aggregate principal amount of such Notes and shall be registered in the name of the nominee of DTC, which will act as depositary. DTC, or any successor depositary for the Notes permitted by the terms of the Indenture, this Officer’s Certificate and the Notes, is hereinafter referred to as the “Depositary.” Except as set forth in the Indenture, owners of beneficial interests in the Notes shall not be entitled to have Notes registered in their names, shall not receive or be entitled to receive Notes in definitive form and shall not be considered Holders of Notes under the Indenture. Notwithstanding any other provisions of the Indenture, this Officer’s Certificate or the Notes, unless and until exchanged in whole or in part for the individual Securities represented thereby, the global Security or Securities representing all or a portion of the Notes of the applicable series may not be transferred except, as provided in Section 3.05 of the Indenture, by the Depositary to another nominee of the Depositary for the Notes, or by a nominee of such Depositary to such Depositary or another nominee of such Depositary, or by such Depositary or any such nominee to a successor Depositary or nominee of such successor Depositary.

XIII. The Notes shall be defeasible pursuant to Section 4.03 of the Indenture.

XIV. The issue price of the Notes to public shall be 100.000% of the principal amount thereof.

XV. The underwriters’ commission or discount as a percentage of the principal amount of the Notes shall be 1.000% of the principal amount thereof.

XVI. The Notes will be fully and unconditionally guaranteed by the Parent Guarantor on a senior unsecured basis (the “Guarantee”) and will rank equally with all other unsecured and unsubordinated guarantees and indebtedness of the Parent Guarantor.

11

XVII. The Guarantee shall (i) remain in full force and effect until payment in full of the principal of (and premium, if any) and interest on the Notes and all other amounts payable with respect to the Notes under the Indenture, (ii) be binding upon the Parent Guarantor and (iii) inure to and be enforceable for the benefit of the Trustee, the Holders and their permitted successors, transferees and assigns.

XVIII. The Guarantee shall thereupon terminate and be discharged and of no further force or effect, (i) upon payment in full of the principal of (and premium, if any) and interest on the Notes and all other amounts payable with respect to the Notes under the Indenture, (ii) upon the satisfaction and discharge of our obligations with respect to the Notes, or (iii) the legal or covenant defeasance of our obligations under the Notes.

Furthermore, we hereby approve the form of and authorize the execution and delivery of the Notes substantially in the form attached hereto as Exhibit A.

[Signature Page Follows]

12

IN WITNESS WHEREOF, each of the undersigned has executed this Officer’s Certificate on behalf of the Company and the Parent Guarantor as of this 25th day of September, 2026.

Exhibit A

Specimen of Global Note representing Floating Rate Notes due 2027

[Form of Floating Rate Note due 2076]

[Face of Security]

UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS 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. THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF DTC OR A NOMINEE THEREOF.

THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN DTC OR SUCH NOMINEE, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

EXXON MOBIL CORPORATION

FULLY AND UNCONDITIONALLY GUARANTEED BY

EXXONMOBIL HOLDINGS CORPORATION

CUSIP / ISIN : 30231G BT8 / US30231GBT85

EXXON MOBIL CORPORATION, a corporation duly organized and existing under the laws of the State of New Jersey (herein called the “Issuer,” which term includes any successor Person under the Indenture referred to on the reverse hereof), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of [    ] on September 25, 2076 and to pay interest thereon from September 25, 2026 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, quarterly in arrears on March 25, June 25, September 25 and December 25 of each year, commencing on December 25, 2026, at a floating rate per annum equal to Compounded SOFR (as defined on the reverse hereof) minus 0.450% (negative 0.450%, the “Margin”), computed on the basis of a 360-day year and the actual number of days in the Observation Period (as defined on the reverse hereof), until the principal hereof is paid or made available for payment. If any Interest Payment Date falls on a day that is not a Business Day, the Issuer shall make the interest payment on the next succeeding Business Day unless that Business Day is in the next succeeding calendar month, in which case (other than in the case of the maturity date, a redemption date or a repayment date) the Issuer shall make the interest payment on the immediately preceding Business Day. If an interest payment is made on the next succeeding Business Day, no interest shall accrue as a result of the delay in payment. If the maturity date, a redemption date or a repayment date of the Securities of this series falls on a day that is not a Business Day, the payment due on such date shall be postponed to the next succeeding Business Day, and no further interest shall accrue in respect of such postponement.

A-1

The interest so payable, and timely paid or duly provided for, on any Interest Payment Date shall, as provided in such Indenture, be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest next preceding such Interest Payment Date, which shall be March 10, June 10, September 10 and December 10, as the case may be (whether or not a Business Day).

On each Interest Payment Determination Date (as defined on the reverse hereof) relating to the applicable Interest Payment Date, the Calculation Agent shall calculate the amount of accrued interest payable on the Securities of this series by multiplying (i) the outstanding principal amount of the Securities of this series by (ii) the product of (a) the interest rate for the relevant interest period multiplied by (b) the quotient of the actual number of calendar days in such Observation Period divided by 360. In no event shall the interest rate on the Securities of this series be less than zero.

The term “interest period,” with respect to the Securities of this series, means (i) the period from and including any Interest Payment Date (or, with respect to the initial interest period only, from and including September 25, 2026) to but excluding the next succeeding Interest Payment Date, (ii) in the case of the last such period, the period from and including the Interest Payment Date immediately preceding the maturity date to but excluding the maturity date, or (iii) in the event of any redemption or repayment of the Securities of this series, the period from and including the Interest Payment Date immediately preceding the applicable redemption or repayment date to but excluding such date.

Except as otherwise provided in the Indenture, any such interest not so timely paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Issuer, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture.

Payment of the principal of (and premium, if any) and any such interest on this Security shall be made at the office or agency of the Issuer maintained for that purpose, pursuant to the Indenture, which shall initially be the Corporate Trust Office of the Trustee located at 1 Columbus Circle, 4^th Floor, Mail Stop: NYC01-0417, New York, New York 10019, 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 debt; provided, however, (a) in the case of Securities in global form registered in the name of or held by The Depository Trust Company (“DTC”) or its nominee, payment of the principal of (and premium, if any) and interest shall be made in immediately available funds to DTC or its nominee, as the case may be, as the registered holder of such Global Security, and (b) in the case of other Securities, at the option of the Issuer payment of the principal of (and premium, if any) and interest may be made by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register.

Reference is hereby made to the further provisions of this Security set forth on the reverse side 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, directly or through an Authenticating Agent, by manual signature of an authorized signatory, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

[Remainder of This Page Intentionally Left Blank]

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

Dated: September 25, 2026

CERTIFICATE OF AUTHENTICATION

This is one of the Securities of the series designated herein issued under the Indenture described herein.

Dated: September 25, 2026

[Reverse of Security]

This Security is one of a duly authorized issue of securities of the Issuer (herein called the “Securities”), issued and to be issued in one or more series under an indenture dated as of March 20, 2014 between the Issuer and Deutsche Bank Trust Company Americas, as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture), as amended and supplemented by a first supplemental indenture dated as of June 26, 2020 between the Issuer and the Trustee, a second supplemental indenture dated as of July 1, 2026 among the Issuer, ExxonMobil Holdings Corporation, a Texas corporation (the “Parent Guarantor”), and the Trustee and as further supplemented by the Officer’s Certificate setting forth the terms of the Securities dated as of the date hereof (herein collectively called the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Issuer, the Parent Guarantor, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of the series designated on the face hereof, limited in aggregate principal amount to U.S.$[    ], subject to (i) the Issuer’s right from time to time, without giving notice to or seeking the consent of the Holders of the Securities, to issue an unlimited amount of additional securities in one or more series having the same ranking and the same interest rate, maturity and other terms as the Securities other than issue date, issue price and the payment of interest accruing prior to the issue date of the additional securities (such additional securities having such similar terms, together with the Securities of this series, constituting a single issue of Securities under the Indenture); provided that if such additional securities are not fungible with the then-outstanding Securities of this series for U.S. federal income tax purposes, the additional securities shall have a separate CUSIP, ISIN or other identifying number, as applicable, and (ii) Securities of this series authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of this series pursuant to the provisions of the Indenture. The Securities of this series are issuable as Securities only in registered form, without coupons in denominations of $1,000 or integral multiples thereof. As provided in the Indenture and subject to certain limitations therein set forth Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of any authorized denominations, as requested by the Holder surrendering the same, upon surrender of the Security or Securities to be exchanged at any office or agency described below where Securities of this series may be presented for registration of transfer.

Compounded SOFR

“Compounded SOFR” shall be determined by the Calculation Agent in accordance with the following formula (and the resulting percentage shall be rounded, if necessary, to the nearest one hundred-thousandth of a percentage point):

where:

“SOFR Index_Start” = For periods other than the initial interest period, the SOFR Index value on the preceding Interest Payment Determination Date, and, for the initial interest period, the SOFR Index value on September 23, 2026;

“SOFR Index_End” = The SOFR Index value on the Interest Payment Determination Date relating to the applicable Interest Payment Date (or, in the final interest period, relating to the maturity date, or in the case of a redemption or repayment of the Securities of this series, relating to the applicable redemption or repayment date); and

“d_c” is the number of calendar days in the relevant Observation Period.

For purposes of determining Compounded SOFR:

“Interest Payment Determination Date” means the date that is two U.S. Government Securities Business Days before each Interest Payment Date (or, in the final interest period, before the maturity date or, in the case of a redemption or repayment of the Securities of this series, before the applicable redemption or repayment date).

“Observation Period” means, in respect of each interest period, the period from and including the date that is two U.S. Government Securities Business Days preceding the first date in such interest period to but excluding the date that is two U.S. Government Securities Business Days preceding the Interest Payment Date for such interest period (or, in the final interest period, preceding the maturity date or, in the case of a redemption or repayment of the Securities of this series, preceding the applicable redemption or repayment date).

“SOFR Index” means, with respect to any U.S. Government Securities Business Day, the SOFR Index value as published by the SOFR Administrator as such index appears on the SOFR Administrator’s Website at 3:00 p.m. (New York time) on such U.S. Government Securities Business Day (the “SOFR Index Determination Time”); provided that if a SOFR Index value does not so appear as specified above at the SOFR Index Determination Time, then: (i) if a Benchmark Transition Event (as defined herein) and its related Benchmark Replacement Date (as defined herein) have not occurred with respect to SOFR, then Compounded SOFR shall be the rate determined pursuant to the “SOFR Index Unavailable Provisions” described below, or (ii) if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to SOFR, then Compounded SOFR shall be the rate determined pursuant to the “—Effect of Benchmark Transition Event” provisions described below.

“SOFR” means the daily secured overnight financing rate as provided by the SOFR Administrator on the SOFR Administrator’s Website.

“SOFR Administrator” means the Federal Reserve Bank of New York (or a successor administrator of SOFR).

“SOFR Administrator’s Website” means the website of the Federal Reserve Bank of New York, currently at http://www.newyorkfed.org, or any successor source.

“U.S. Government Securities Business Day” means any day except for a Saturday, a Sunday or a day on which the Securities Industry and Financial Markets Association recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

Notwithstanding anything to the contrary in the documentation relating to the Securities of this series, if the Issuer (or its designee) determines on or prior to the relevant Reference Time (as defined herein) that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to determining Compounded SOFR, then the benchmark replacement provisions set forth below under “—Effect of Benchmark Transition Event” shall thereafter apply to all determinations of the rate of interest payable on the Securities of this series.

For the avoidance of doubt, in accordance with the benchmark replacement provisions, after a Benchmark Transition Event and its related Benchmark Replacement Date have occurred, the interest rate for each interest period on the Securities of this series shall be an annual rate equal to the sum of the Benchmark Replacement and the Margin.

SOFR Index Unavailable Provisions

If a SOFR Index_Start or SOFR Index_End is not published on the associated Interest Payment Determination Date and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred with respect to SOFR, “Compounded SOFR” means, for the applicable interest period for which such index is not available, the rate of return on a daily compounded interest investment calculated in accordance with the formula for SOFR averages, and definitions required for such formula, published on the SOFR Administrator’s Website, initially located at https://www.newyorkfed.org/markets/treasury-repo-reference-rates-information. For the purposes of this provision, references in the SOFR averages compounding formula and related definitions to “calculation period” shall be replaced with “Observation Period” and the words “that is, 30-, 90-, or 180-calendar days” shall be removed. If SOFR does not so appear for any day “i” in the Observation Period, SOFRi for such day “i” shall be SOFR published in respect of the first preceding U.S. Government Securities Business Day for which SOFR was published on the SOFR Administrator’s Website.

Effect of Benchmark Transition Event

Benchmark Replacement. If the Issuer (or its designee) determines that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred prior to the Reference Time in respect of any determination of the Benchmark (as defined herein) on any date, the Benchmark Replacement shall replace the then-current Benchmark for all purposes relating to the Securities of this series in respect of such determination on such date and all determinations on all subsequent dates.

Benchmark Replacement Conforming Changes. In connection with the implementation of a Benchmark Replacement, the Issuer (or its designee) shall have the right to make Benchmark Replacement Conforming Changes (as defined herein) from time to time.

Decisions and Determinations. Any determination, decision or election that may be made by the Issuer (or its designee) pursuant to the benchmark replacement provisions described in this subsection “—Effect of Benchmark Transition Event,” including any determination with respect to tenor, rate or adjustment or of the occurrence or non-occurrence of an event, circumstance or date and any decision to take or refrain from taking any action or any selection, shall be conclusive and binding absent manifest error, shall be made in the Issuer’s (or its designee’s) sole discretion, and, notwithstanding anything to the contrary in the documentation relating to the Securities of this series, shall become effective without consent from the Holders of the Securities of this series or any other party.

Certain Defined Terms. As used herein, the following terms have the following meanings:

“Benchmark” means, initially, Compounded SOFR, as such term is defined above; provided that if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to Compounded SOFR (or the published SOFR Index used in the calculation thereof) or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement.

“Benchmark Replacement” means the first alternative set forth in the order below that can be determined by the Issuer (or its designee) as of the Benchmark Replacement Date:

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the Issuer (or its designee) as of the Benchmark Replacement Date:

The Benchmark Replacement Adjustment shall not include the Margin specified herein and such Margin shall be applied to the Benchmark Replacement to determine the interest payable on the Securities of this series.

“Benchmark Replacement Conforming Changes” means, with respect to any Benchmark Replacement, any technical, administrative or operational changes (including changes to the definitions or interpretations of “interest period,” the timing and frequency of determining rates and making payments of interest, the rounding of amounts or tenors, and other administrative matters) that the Issuer (or its designee) decides may be appropriate to reflect the adoption of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Issuer (or its designee) decides that adoption of any portion of such market practice is not administratively feasible or if the Issuer (or its designee) determines that no market practice for use of the Benchmark Replacement exists, in such other manner as the Issuer (or its designee) determines is reasonably necessary or practicable).

“Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date shall be deemed to have occurred prior to the Reference Time for such determination.

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

“ISDA Definitions” means the 2021 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time.

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor.

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment.

“Reference Time” with respect to any determination of the Benchmark means (1) if the Benchmark is Compounded SOFR, the SOFR Index Determination Time, as such time is defined above, and (2) if the Benchmark is not Compounded SOFR, the time determined by the Issuer (or its designee) in accordance with the Benchmark Replacement Conforming Changes.

“Relevant Governmental Body” means the Federal Reserve Board and/or the Federal Reserve Bank of New York, or a committee officially endorsed or convened by the Federal Reserve Board and/or the Federal Reserve Bank of New York or any successor thereto.

“Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment.

Any or all of the Securities of this series may be redeemed at the Issuer’s option at any time or from time to time, in amounts of $1,000 or any multiple of $1,000 in excess thereof, at the following redemption prices (in each case expressed as a percentage of the principal amount), if redeemed during the twelve-month periods beginning on September 25 as set forth below:

and thereafter at 100.000% of the principal amount, in each case, together with any accrued and unpaid interest thereon to but excluding the redemption date.

The Issuer shall send notice of any redemption at least 10 days but not more than 60 days before the redemption date to each registered Holder of the Securities of this series to be redeemed, with such notice to be sent in accordance with the provisions of the Indenture. Once notice of redemption is sent, the Securities of this series called for redemption shall become due and payable on the redemption date and at the applicable redemption price, plus accrued and unpaid interest to the redemption date, subject to any conditions precedent specified in such notice.

On and after the redemption date, interest shall cease to accrue on the Securities of this series or any portion of the Securities of this series called for redemption (unless the Issuer defaults in the payment of the redemption price and accrued interest). On or before the redemption date, the Issuer shall deposit with a paying agent or the Trustee money sufficient to pay the redemption price of and accrued interest on the Securities of this series to be redeemed on that date. If less than all of the Securities of this series are to be redeemed, the Securities of this series to be redeemed shall be selected by the Trustee pro rata, by lot, or by such other method the Trustee deems to be fair and appropriate, in each case in accordance with the applicable procedures of DTC.

The Securities of this series shall be repayable at the option of a Holder of the Securities of this series, in whole or in part, on the repayment dates and at the repayment prices (in each case expressed as a percentage of the principal amount) as set forth below:

and on September 25 of every second year thereafter, through and including September 25, 2073, at 100.000% of the principal amount, in each case, together with any accrued and unpaid interest thereon to but excluding the repayment date.

In order for a Security of this series to be repaid at the option of a Holder, the Trustee must receive, at least 30 but not more than 60 days before the optional repayment date,

The repayment option may be exercised by the Holder of a Security of this series for less than the entire principal amount of the Security of this series but, in that event, the principal amount of the Security of this series remaining outstanding after repayment must be in an authorized denomination.

If a tax event (as defined herein) occurs, the Issuer shall have the right to shorten the maturity of the Securities of this series, without the consent of the Holders of the Securities of this series,

in each case, to the extent deductible under current law, as determined in good faith by the Issuer’s Board of Directors, after receipt of an opinion of that counsel regarding the applicable legal standards. In that case, the amount payable on the Securities of this series on that new maturity date shall be equal to 100.000% of the principal amount of the Securities of this series, together with any accrued and unpaid interest thereon to but excluding that new maturity date.

If the Issuer elects to exercise its right to shorten the maturity of the Securities of this series when a tax event occurs, the Issuer shall give notice to each Holder of the Securities of this series not more than 60 days after the occurrence of the tax event, stating the new maturity date of the Securities of this series. If the Securities of this series are solely registered in the name of Cede & Co. and traded through DTC, then such notice shall be delivered to DTC, and transmitted by DTC in accordance with its practices.

“Tax event” means that the Issuer shall have received an opinion of nationally recognized independent tax counsel to the effect that, as a result of:

in each case, occurring on or after September 23, 2026, there is more than an insubstantial increase in the risk that interest the Issuer pays on the Securities of this series is not, or will not be, deductible, in whole or in part, by the Issuer for U.S. federal income tax purposes.

For the avoidance of doubt, following the exercise by the Issuer of its right to shorten the maturity of the Securities of this series when a tax event occurs, any references to “maturity date” herein shall refer to the new maturity date of the Securities of this series.

The Securities will be fully and unconditionally guaranteed by the Parent Guarantor pursuant to the Indenture.

Subject to certain conditions set forth in the Indenture, the Issuer at any time may discharge or defease some of or all of its obligations under this Security and the Indenture in accordance with Section 4.03 of the Indenture. Subject to certain conditions set forth in the Indenture, the Parent Guarantor may, in certain instances, discharge or defease some or all of its obligations under this Security and the Indenture.

If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series 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 Issuer and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Issuer and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding (with each series voting as a separate class in certain cases specified in the Indenture, or with all series voting as one class, in certain other cases specified in the Indenture), on behalf of the Holders of all Securities of such series, to waive compliance by the Issuer with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notification of such consent or waiver is made upon this Security.

As set forth in, and subject to, the provisions of the Indenture, no Holder of any Security of this series shall have any right to institute any proceeding with respect to the Indenture or for any remedy thereunder, unless such Holder shall have previously given to the Trustee written notice at the Corporate Trust Office of a continuing Event of Default with respect to this series, the Holders of not less than 25% in principal amount of the Outstanding Securities of this series and all other affected series shall have made written request to the Trustee to institute such proceeding as trustee (and offered security or indemnity satisfactory to the Trustee), and the Trustee shall not have received from the Holders of a majority in principal amount of the Outstanding Securities of all affected series a direction inconsistent with such request and shall have failed to institute such proceedings within 60 days; provided, however, that such limitations do not apply to a suit instituted by the Holder hereof for the enforcement of payment of the principal of (and premium, if any) or any interest on this Security on or after the respective due dates expressed herein.

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of (and premium, if any) and any interest on this Security at the times, places and rate, and in the coin or currency, herein prescribed.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Issuer in any place where the principal of (and premium, if any) and any interest on such Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Issuer and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, shall be issued to the designated transferee or transferees. The Issuer and the Trustee shall be entitled to request an opinion of counsel providing that the transfer complies with applicable securities laws.

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

Prior to due presentment of this Security for registration of transfer, the Issuer, the Trustee and any agent of the Issuer or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security is overdue, and neither the Issuer, the Trustee nor any such agent shall be affected by notice to the contrary.

Notwithstanding anything in the Indenture or in the terms of this Security to the contrary, the exchange of this Security for a Security shall be subject to satisfaction of the provisions of the United States tax laws in effect at the time of the exchange. Neither the Issuer nor the Trustee nor any agent of the Issuer or the Trustee shall be required to exchange this Security for a Security if (a) as a result thereof and in the Issuer’s judgment, the Issuer would incur adverse consequences under then applicable United States Federal income tax laws and (b) in the case of the Trustee or any agent of the Issuer or the Trustee, the Issuer shall have delivered to such Person an Officer’s Certificate and an Opinion of Counsel as to the matters set forth in clause (a) above.

The Trustee, Paying Agent and Security Registrar and the Calculation Agent for the Securities of this series shall initially be Deutsche Bank Trust Company Americas.

The Indenture and the Securities shall be governed by and construed in accordance with the laws of the State of New York.

All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

[Remainder of This Page Intentionally Left Blank]

EXXON MOBIL CORPORATION

(herein referred to as the “Issuer”)

FLOATING RATE NOTES DUE 2076

OPTION TO ELECT REPAYMENT

If you elect to have this Security purchased by the Issuer pursuant to the terms thereof,

If you want to elect to have only part of this Security purchased by the Issuer pursuant to the terms thereof,

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

Please print name and address of registered Holder:

Exhibit 5.1

		Davis Polk & Wardwell LLP 450 Lexington Avenue New York, NY 10017 davispolk.com

Ladies and Gentlemen:

Exxon Mobil Corporation, a New Jersey corporation (the “Company”), has filed with the Securities and Exchange Commission (the “Commission”) a Registration Statement on Form S-3 (File No. 333-293558) and Amendment No. 1 thereto (together, the “Registration Statement”), for the purpose of registering under the Securities Act of 1933, as amended (the “Securities Act”), certain debt securities, including $185,883,000 aggregate principal amount of the Company’s Floating Rate Notes due 2076 (the “Securities”), which are to be fully and unconditionally guaranteed by ExxonMobil Holdings Corporation, a Texas corporation (the “Parent Guarantor”). The Securities are to be issued pursuant to the provisions of an indenture dated as of March 20, 2014 between the Company and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”), as amended and supplemented by a first supplemental indenture dated as of June 26, 2020 between the Company and the Trustee, as further amended and supplemented by a second supplemental indenture dated as of July 1, 2026 among the Company, the Parent Guarantor and the Trustee and as further supplemented by an officer’s certificate of the President of the Company and the Vice President, Corporate Finance and Treasurer of the Parent Guarantor dated September 25, 2026 (together, the “Indenture”). The Securities are to be sold pursuant to the Underwriting Agreement dated September 23, 2026 (the “Underwriting Agreement”) among the Company, the Parent Guarantor and the several underwriters named therein (the “Underwriters”).

We, as counsel to you and the Parent Guarantor, have examined originals or copies of such documents, corporate records, certificates of public officials and other instruments as we have deemed necessary or advisable for the purpose of rendering this opinion.

In rendering the opinion expressed herein, we have, without independent inquiry or investigation, assumed that (i) all documents submitted to us as originals are authentic and complete, (ii) all documents submitted to us as copies conform to authentic, complete originals, (iii) all signatures on all documents that we reviewed are genuine, (iv) all natural persons executing documents had and have the legal capacity to do so, (v) all statements in certificates of public officials and officers of the Company and the Parent Guarantor that we reviewed were and are accurate and (vi) all representations made by the Company and the Parent Guarantor as to matters of fact in the documents that we reviewed were and are accurate.

Based upon the foregoing, and subject to the additional assumptions and qualifications set forth below, we advise you that, in our opinion, assuming the Securities have been duly executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters pursuant to the Underwriting Agreement, the Securities will constitute valid and binding obligations of the Company and the guarantee thereof will constitute a valid and binding obligation of the Parent Guarantor, in each case, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors’ rights generally, concepts of reasonableness and equitable principles of general applicability, provided that we express no opinion as to (x) the enforceability of any waiver of rights under any usury or stay law, (y) the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above, or (z) the validity, legally binding effect or enforceability of any provision that permits holders to collect any portion of stated principal amount upon acceleration of the Securities to the extent determined to constitute unearned interest.

In connection with the opinion expressed above, we have assumed that the Company is validly existing as a corporation in good standing under the laws of the State of New Jersey, and that the Parent Guarantor is validly existing as a corporation in good standing under the laws of the State of Texas. In addition, we have assumed that the Indenture and the Securities (collectively, the “Documents”) are valid, binding and enforceable agreements of each party thereto (other than as expressly covered above in respect of the Company and the Parent Guarantor). We have also assumed that the execution, delivery and performance by each party to each Document to which it is a party (a) are within its corporate powers, (b) do not contravene, or constitute a default under, the certificate of incorporation or bylaws or other constitutive documents of such party, (c) require no action by or in respect of, or filing with, any governmental body, agency or official and (d) do not contravene, or constitute a default under, any provision of applicable law or regulation or any judgment, injunction, order or decree or any agreement or other instrument binding upon such party.

We are members of the Bar of the State of New York and the foregoing opinion is limited to the laws of the State of New York, except that we express no opinion as to (i) any law, rule or regulation that is applicable to the Company and the Parent Guarantor, the Documents or such transactions solely because such law, rule or regulation is part of a regulatory regime applicable to any party to any of the Documents or any of its affiliates due to the specific assets or business of such party or such affiliate or (ii) any law, rule or regulation relating to national security. Insofar as the foregoing opinion involves matters governed by the laws of the State of New Jersey or the laws of the State of Texas, we have relied, without independent inquiry or investigation, on the opinion of Timothy Kim, Counsel—Corporate of the Company and the Parent Guarantor, to be filed as an exhibit to a current report on Form 8-K to be filed by the Parent Guarantor on the date hereof.

We hereby consent to the filing of this opinion as an exhibit to a current report on Form 8-K to be filed by the Parent Guarantor on the date hereof and its incorporation by reference into the Registration Statement and further consent to the reference to our name under the caption “Validity of the Notes” in the prospectus supplement which is a part of the Registration Statement. In giving this consent, we do not admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.

Very truly yours,

/s/ Davis Polk & Wardwell LLP

Exhibit 5.2

OPINION OF TIMOTHY KIM, ESQ.

September 25, 2026

Exxon Mobil Corporation

22777 Springwoods Village Parkway

Spring, Texas 77389-1425

ExxonMobil Holdings Corporation

22777 Springwoods Village Parkway

Spring, Texas 77389-1425

Ladies and Gentlemen:

I am Counsel—Corporate of each of Exxon Mobil Corporation, a New Jersey corporation (the “Company”) and ExxonMobil Holdings Corporation, a Texas corporation (the “Parent Guarantor”). The Company has filed with the Securities and Exchange Commission (the “Commission”) a Registration Statement on Form S-3 (File No. 333-293558) and Amendment No. 1 thereto (the “Registration Statement”), for the purpose of registering under the Securities Act of 1933, as amended (the “Securities Act”), certain debt securities, including $185,883,000 aggregate principal amount of its Floating Rate Notes due 2076 (the “Securities”), which are to be fully and unconditionally guaranteed by the Parent Guarantor. The Securities are to be issued pursuant to the provisions of an indenture dated as of March 20, 2014 (the “Base Indenture”) between the Company and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”), as amended and supplemented by a first supplemental indenture dated as of June 26, 2020 (the “First Supplemental Indenture”) between the Company and the Trustee, as further supplemented by a second supplemental indenture dated as of July 1, 2026 (the “Second Supplemental Indenture”) among the Company, the Parent Guarantor and the Trustee and as further supplemented by an officer’s certificate of the President of the Company and the Vice President, Corporate Finance and Treasurer of the Parent Guarantor dated September 25, 2026 (the “Officer’s Certificate” and, together with the Base Indenture, the First Supplemental Indenture and the Second Supplemental Indenture, the “Indenture”). The Securities are to be sold pursuant to the Underwriting Agreement dated September 23, 2026 among the Company, the Parent Guarantor and the several underwriters named therein. The Indenture and the Securities are herein referred to as the “Documents.”

I have examined originals or copies of such documents, corporate records, certificates of public officials and other instruments as I have deemed necessary or advisable for the purpose of rendering this opinion.

In rendering the opinion expressed herein, I have, without independent inquiry or investigation, assumed that (i) all documents submitted to me as originals are authentic and complete, (ii) all documents submitted to me as copies conform to authentic, complete originals, (iii) all signatures on all documents that I reviewed are genuine, (iv) all natural persons executing documents had and have the legal capacity to do so, (v) all statements in certificates of public officials and officers of the Company and the Parent Guarantor that I reviewed were and are accurate and (vi) all representations made by the Company and the Parent Guarantor as to matters of fact in the documents that I reviewed were and are accurate.

Based upon the foregoing, and subject to the additional assumptions and qualifications set forth below, I am of the opinion that:

I am a member of the Bar of the State of Texas, and the foregoing opinion is limited to the New Jersey Business Corporation Act, the laws of the State of Texas and the federal laws of the United States of America, except that I express no opinion as to any law, rule or regulation that is applicable to the Company, the Parent Guarantor, the Documents or such transactions solely because such law, rule or regulation is part of a regulatory regime applicable to any party to any of the Documents or any of its affiliates due to the specific assets or business of such party or such affiliate.

Davis Polk & Wardwell LLP, special counsel to the Company and the Parent Guarantor, may rely upon this opinion in rendering its opinion of even date herewith.

I hereby consent to the filing of this opinion as an exhibit to a current report on Form 8-K to be filed by the Parent Guarantor on the date hereof and its incorporation by reference into the Registration Statement and further consent to the reference to my name under the caption “Validity of the Notes” in any prospectus supplement relating to the Securities which is a part of the Registration Statement. In giving this consent, I do not admit that I am in the category of persons whose consent is required under Section 7 of the Securities Act.

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