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EXHIBIT 10.10

EXXONMOBIL SUPPLEMENTAL SAVINGS PLAN

1.Purpose

The purpose of this Plan is to provide a payment of approximately equivalent value from the general assets of Exxon

Mobil Corporation (“Corporation”) to a person participating in the ExxonMobil Savings Plan (“Savings Plan”) who,

because of the application of United States Internal Revenue Code (“Code”) sections 415 and 401(a)(17) is

precluded from receiving employer contributions to the person's Savings Plan account to which the person would

otherwise be entitled.

2.Benefits

2.1Eligibility

A person is eligible to receive benefits under this Plan only if any one of the following requirements is met

with respect to the person:

(A)The person becomes a retiree pursuant to section 4.1(A) (relating to age, service and LTD- eligibility

requirements) or section 4.1(D) (relating to retiree grow-ins in connection with certain divestments)

of the ExxonMobil Common Provisions or a qualified plans retiree within the meaning of the

ExxonMobil Pension Plan (“Retiree”);

(C)the person’s employment is terminated in connection with a sale of the assets to a buyer or the

outsourcing of a business operation to an outsourcing company, and the person continues in

employment until the closing date of the sale of assets or outsourcing;

(D)the person receives a severance benefit from the ExxonMobil Special Program of Severance

Allowances, or similar severance program sponsored by the Corporation or an affiliate;

(E)The Plan Administrator determines, in its sole and absolute discretion, that the person is eligible to

receive benefits under this Plan. In this regard, the Plan Administrator may from time to time adopt

eligibility standards or guidelines that may guide the Plan Administrator’s eligibility determinations,

and may in its discretion, modify, suspend, supersede, or cancel such standards or guidelines.

2.2Benefit Formula

(A)In General

For any participant eligible to receive benefits under this Plan, the value of such benefit is an amount that is

determined by notionally crediting on a monthly basis the amount of employer contributions that cannot be made to

the Savings Plan for that person as a result of application to that person of Code sections 415 and 401(a)(17). This

amount is enhanced by notional interest at 120 percent of the long-term Applicable Federal Rate, compounded

monthly, as of the last month of each calendar quarter as published by the Internal Revenue Service.

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(B)Notional Interest Rate for Key Employees after Retirement

Notwithstanding paragraph (A) above, for Participants who have a Classification Level of 35 or

above at the time of their termination of employment (“Key Employee”), notional interest for the

period between the date of termination of employment and the date of payment shall be credited at

the Citibank Prime Lending Rate as of the last business day of each calendar quarter or, if the Key

Employee’s last day of employment is on or after November 1, 2022, at the interest rate

determined under section 4.4(D)(3)(b)(iii) of Part 1 of the ExxonMobil Pension Plan on the first of

the month immediately following the person’s last day of employment, but taking into account

only the first segment rate for this purpose.

2.3Calculation Methodology

The exact methodology used in determining such monthly credits and interest thereon will be established

from time to time by the Plan Administrator. General guidelines to be followed are:

(A)Required Participant Contributions

To the extent determined by those administering this Plan, a person is required to make regular

employee contributions to the person's Savings Plan account up to the maximum permitted by the

Code to receive credits under this Plan.

(B)Discretionary Employee Contributions

Prior to July 1, 2002, a person may not enhance the amounts credited under this Plan by making

discretionary employee contributions to the person's Savings Plan account.

3.Payment of Benefits

Payment of the benefit determined under article 2 above shall be made in a lump sum as soon as practicable

following the latest of the following times:

(A)the participant’s termination of employment from ExxonMobil;

(B)In the case of a Key Employee, the six-month anniversary of the participant's termination of employment;

(C)In the case of a participant whose Savings Plan account is transferred to a savings plan sponsored by

Infineum USA Inc. or any of its affiliates ("Infineum"), the participant’s termination of employment from

Infineum; or

(D)In the case of a participant whose Savings Plan account is transferred to a savings plan sponsored by

Tenneco, Inc. or any of its affiliates ("Tenneco"), the participant’s termination of employment from

Tenneco.

4.Payment Upon Death

4.1In General

If a person dies as an employee with eligibility for a pension death benefit under the ExxonMobil Pension Plan or as

a Retiree but before his benefit under this Plan is distributed to him, then such benefit shall be distributed as soon as

practicable after death to the person’s beneficiary determined under section 4.2 below.

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4.2Designation of Beneficiaries

(A)In General

A person entitled to receive a payment under this Plan may name one or more designated

beneficiaries to receive such payment in the event of the person's death. Beneficiary designations

shall be made in accordance with such procedures as the Plan Administrator may establish.

Spousal consent to any designation is not required.

(B)Default Beneficiaries

(1)In General

If no specific designation is in effect, the deceased’s beneficiary is the person or persons

in the first of the following classes of successive beneficiaries living at the time of death

of the deceased:

(a)spouse;

(b)children who survive the participant or who die before the participant leaving

children of their own who survive the participant;

(c)parents;

(d)brothers and sisters who survive the participant or who die before the participant

leaving children of their own who survive the participant.

If there are no members of any class of such beneficiaries, payment is made to the

deceased’s executors or administrators.

(2)Allocation among Default Beneficiaries

If the same class of beneficiaries under paragraph (1) above contains two or more

persons, they share equally, with further subdivision of such equal shares as next

provided. In class (b), where a child dies before the participant leaving children who

survive the participant, such child's share is subdivided equally among those children. In

class (d), where a brother or sister dies before the participant leaving children who

survive the participant, such brother or sister's share is subdivided equally among those

children.

(3)Definitions

For purposes of this Section 4.2, "child" means a person's son or daughter by legitimate blood relationship or legal

adoption; "parent" means a person's father or mother by legitimate blood relationship or legal adoption; "brother" or

"sister" means another child of either or both of one's parents.

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5.Miscellaneous

5.1Administration of Plan

The Plan Administrator shall be the Manager, Compensation, Benefits, & Policies, Human Resources

Department, Exxon Mobil Corporation. The Plan Administrator shall have the right and authority to

conclusively interpret this Plan for all purposes, including the determination of any person’s eligibility for

benefits hereunder and the resolution of any and all appeals relating to claims by participants or

beneficiaries, with any such interpretation being conclusive for all participants and beneficiaries.

5.2Nature of Payments

Payments provided under this Plan are considered general obligations of the Corporation.

5.3Assignment or Alienation

Except as provided in section 5.5 below, payments provided under this Plan may not be assigned or

otherwise alienated or pledged.

5.4Amendment or Termination

The Corporation's parent entity, ExxonMobil Holdings Corporation ("Parent"), reserves the right to amend

or terminate this plan, in whole or in part, including the right at any time to reduce or eliminate any accrued

benefits hereunder and to alter or amend the benefit formula set out herein.

5.5Forfeiture of Benefits

No person shall be entitled to receive payments under this Plan and any payments received under this Plan

shall be forfeited and returned if it is determined by the Corporation in its sole discretion, acting through

the Parent's Chief Executive Officer or such person or committee as the Chief Executive Officer may

designate, that a person otherwise entitled to a payment under this Plan or who has commenced receiving

payments under this Plan:

(A)engaged in gross misconduct harmful to the Corporation, or any of its affiliates,

(B)committed a criminal violation harmful to the Corporation, or any of its affiliates,

(C)had concealed actions described in paragraph (A) or (B) above which would have brought about

termination from employment thereby making the person ineligible for benefits under this Plan,

(D)separated from service prior to attaining age 65 without having received from the Parent or its

delegate prior written approval for such termination, given in the sole discretion of the Parent or

its delegate and in the context of recognition that benefits under this Plan would not be forfeited

upon such termination, or

(E)had been terminated for cause.