Dear Shareholder:

We invite you to attend the annual meeting of shareholders on Wednesday, May 27, 2015, at the Morton H. Meyerson Symphony Center, 2301 Flora Street, Dallas, Texas 75201. The meeting will begin promptly at 9:30 a.m., Central Time. At the meeting, you will hear a report on our business and vote on the following items:

Only shareholders of record on April 7, 2015, or their proxy holders may vote at the meeting. Attendance at the meeting is limited to shareholders or their proxy holders and ExxonMobil guests. Only shareholders or their valid proxy holders may address the meeting.

This booklet includes the formal notice of the meeting and proxy statement. The proxy statement tells you about the agenda, procedures, and rules of conduct for the meeting. It also describes how the Board operates, gives information about our director candidates, and provides information about the other items of business to be conducted at the meeting.

Financial information is provided separately in the booklet, 2014 Financial Statements and Supplemental Information, enclosed with proxy materials available to all shareholders.

Even if you own only a few shares, we want your shares to be represented at the meeting. You can vote your shares by Internet, toll-free telephone call, or proxy card.

To attend the meeting in person, please follow the instructions on page 3. An audio webcast with slide presentation and a report on the meeting will be available on our website at exxonmobil.com.

Sincerely,

Table of Contents

GENERAL INFORMATION

Who May Vote

Shareholders of ExxonMobil, as recorded in our stock register on April 7, 2015, may vote at the meeting.

How to Vote

You may vote in person at the meeting or by proxy. We recommend you vote by proxy even if you plan to attend the meeting. You can always change your vote at the meeting.

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be held on May 27, 2015

Electronic Delivery of Proxy Statement and Annual Report Documents

Instead of receiving future copies of these documents by mail, shareholders can elect to receive an e-mail that will provide electronic links to the proxy materials. Opting to receive your proxy materials online will save the Company the cost of producing and mailing documents to your home or business, and will also give you an electronic link to the proxy voting site.

How Proxies Work

ExxonMobil’s Board of Directors is asking for your proxy. Giving us your proxy means you authorize us to vote your shares at the meeting in the manner you direct.

If your shares are held in your name, you can vote by proxy in one of three convenient ways:

Your proxy card covers all shares registered in your name and shares held in your Computershare Investment Plan account. If you own shares in the ExxonMobil Savings Plan for employees and retirees, your proxy card also covers those shares.

If you give us your signed proxy but do not specify how to vote, we will vote your shares as follows:

1

If you hold shares through someone else, such as a stockbroker, you will receive material from that firm asking how you want to vote. Check the voting form used by that firm to see if it offers Internet or telephone voting.

Voting Shares in the ExxonMobil Savings Plan

The Trustee of the ExxonMobil Savings Plan will vote Plan shares as participants direct. To the extent participants do not give instructions, the Trustee will vote shares as it thinks best. The proxy card serves to give voting instructions to the Trustee.

Revoking a Proxy

You may revoke your proxy before it is voted at the meeting by:

Confidential Voting

Independent inspectors count the votes. Your individual vote is kept confidential from us unless special circumstances exist. For example, a copy of your proxy card will be sent to us if you write comments on the card.

Quorum

In order to carry on the business of the meeting, we must have a quorum. This means at least a majority of the outstanding shares eligible to vote must be represented at the meeting, either by proxy or in person. Treasury shares, which are shares owned by ExxonMobil itself, are not voted and do not count for this purpose.

Votes Required

Our Corporate Governance Guidelines, which can be found in the Corporate Governance section of our website at exxonmobil.com/guidelines, state that all directors will stand for election at the annual meeting of shareholders. In any non-contested election of directors, any director nominee who receives a greater number of votes WITHHELD from his or her election than votes FOR such election shall tender his or her resignation. Within 90 days after certification of the election results, the Board of Directors will decide, through a process managed by the Board Affairs Committee and excluding the nominee in question, whether to accept the resignation. Absent a compelling reason for the director to remain on the Board, the Board shall accept the resignation. The Board will promptly disclose its decision and, if applicable, the reasons for rejecting the tendered resignation on Form 8-K filed with the Securities and Exchange Commission (SEC).

2

Abstentions count for quorum purposes, but not for voting. Broker non-votes count as votes FOR the ratification of the appointment of independent auditors but do not count for voting on any of the other proposals.

Annual Meeting Admission

Only shareholders or their proxy holders and ExxonMobil guests may attend the meeting. For safety and security reasons, cameras, smartphones, recording equipment, electronic devices, computers, large bags, briefcases, or packages will not be permitted in the building. In addition, each shareholder and ExxonMobil guest will be asked to present valid government-issued picture identification, such as a driver’s license, before being admitted to the meeting.

For registered shareholders, an admission ticket is attached to your proxy card. Please detach and bring the admission ticket with you to the meeting.

If your shares are held in the name of your broker, bank, or other nominee, you must bring to the meeting an account statement or letter from the nominee indicating that you beneficially owned the shares on April 7, 2015, the record date for voting. You may receive an admission ticket in advance by sending a written request with proof of ownership to the address listed below under Contact Information.

Shareholders who do not present admission tickets at the meeting will be admitted only upon verification of ownership at the admission counter.

Audio Webcast of the Annual Meeting

You are invited to visit our website at exxonmobil.com to hear the audio webcast with slide presentation at 9:30 a.m., Central Time, on Wednesday, May 27, 2015. An archived copy of this audio webcast will be available on our website for one year.

Conduct of the Meeting

The Chairman has broad responsibility and legal authority to conduct the annual meeting in an orderly and timely manner. This authority includes establishing rules for shareholders who wish to address the meeting. Only shareholders or their valid proxy holders may address the meeting. Copies of these rules will be available at the meeting. The Chairman may also exercise broad discretion in recognizing shareholders who wish to speak and in determining the extent of discussion on each item of business. In light of the number of business items on this year’s agenda and the need to conclude the meeting within a reasonable period of time, we cannot ensure that every shareholder who wishes to speak on an item of business will be able to do so.

Dialogue can usually be better accomplished with interested parties outside the meeting and, for this purpose, we have provided a method on our website at exxonmobil.com/directors for raising issues and contacting the non-employee directors either in writing or electronically. The Chairman may also rely on applicable law regarding disruptions or disorderly conduct to ensure that the meeting is conducted in a manner that is fair to all shareholders. Shareholders making comments during the meeting must do so in English so that the majority of shareholders present can understand what is being said.

Contact Information

If you have questions or need more information about the annual meeting, write to Mr. Jeffrey J. Woodbury, Secretary, Exxon Mobil Corporation, 5959 Las Colinas Boulevard, Irving, TX 75039-2298. Or call us at 1-972-444-1157 or send a fax to 1-972-444-1505.

For information about shares registered in your name or your Computershare Investment Plan account, call ExxonMobil Shareholder Services at 1-800-252-1800 or 1-781-575-2058 (outside the United States, Canada, and Puerto Rico), or access your account via the website at www.computershare.com/exxonmobil. We also invite you to visit ExxonMobil’s website at exxonmobil.com. Investor information can be found at exxonmobil.com/investor. Website materials are not part of this proxy solicitation.

3

BOARD OF DIRECTORS

CORPORATE GOVERNANCE

Overview

The Board of Directors and its committees perform a number of functions for ExxonMobil and its shareholders, including:

The Board has adopted Corporate Governance Guidelines that govern the structure and functioning of the Board and set out the Board’s position on a number of governance issues. A copy of our current Corporate Governance Guidelines is posted on our website at exxonmobil.com/guidelines.

All ExxonMobil directors stand for election at the annual meeting. Non-employee directors cannot stand for election after they have reached age 72, unless the Board makes an exception on a case-by-case basis. Employee directors resign from the Board when they are no longer employed by ExxonMobil.

Risk Oversight

Risk oversight is the responsibility of the full Board of Directors. The Board throughout the year participates in reviews with management on the Company’s business, including identified risk factors. As a whole, the Board reviews include litigation and other legal matters; political contributions, budget, and policy; developments in climate science and policy; the Energy Outlook, which projects world supply and demand to 2040; stewardship of business performance; and long-term strategic plans.

The Board and/or the Public Issues and Contributions Committee visit an ExxonMobil operation each year. These visits allow the directors to better understand local issues and to discuss safety, environmental performance, technology, products, industry and corporate standards, and community involvement associated with the Company’s business.

In addition, existing committees help the Board carry out its responsibility for risk oversight by focusing on specific key areas of risk:

The Board receives regular updates from the committees, and believes this structure is best for overseeing risk.

4

Board Leadership Structure

The Board believes that the decision as to who should serve as Chairman and/or CEO is the proper responsibility of the Board. The Board retains authority to amend the By-Laws to separate the positions of Chairman and CEO at any time and will carefully consider the pros and cons of such separation or combination. At the present time, the Board believes the interests of all shareholders are best served through a leadership model with a combined Chairman/CEO position and an independent Presiding Director.

The current CEO possesses an in-depth knowledge of the Company; its integrated, multinational operations; the evolving energy industry supply and demand; and the array of challenges to be faced. This knowledge was gained through more than 39 years of successful experience in progressively more senior positions, including domestic and international responsibilities.

The Board believes that these experiences and other insights put the CEO in the best position to provide broad leadership for the Board as it considers strategy and as it exercises its fiduciary responsibilities to shareholders. Further, the Board has demonstrated its commitment and ability to provide independent oversight of management.

The Board is comprised entirely of independent directors except the CEO, and 100 percent of the Audit, Compensation, Board Affairs, and Public Issues and Contributions Committee members are independent. Each independent director has access to the CEO and other Company executives on request; may call meetings of the independent directors; and may request agenda topics to be added or dealt with in more detail at meetings of the full Board or an appropriate Board committee.

In addition, after considering evolving governance practices and shareholder input regarding Board independence, the Board established the role of Presiding Director. The Board believes the Presiding Director can provide effective independent Board leadership. J.S. Fishman serves as Presiding Director and is expected to remain in the position at least through the annual meeting of shareholders. In accordance with the specific duties prescribed in the Corporate Governance Guidelines, the Presiding Director chairs executive sessions of the independent directors, which are held several times per year, normally coincident with meetings of the Board and without the CEO or other management present; chairs meetings of the Board in the absence of the Chairman; and works closely with the Chairman in developing Board agendas, topics, schedules, and in reviewing materials provided to the directors.

Director Qualifications

The Board has adopted guidelines outlining the qualifications sought when considering non-employee director candidates. These guidelines are published on our website at exxonmobil.com/directorguidelines.

In part, the guidelines describe the necessary experiences and skills expected of director candidates as follows:

“Candidates for non-employee director of Exxon Mobil Corporation should be individuals who have achieved prominence in their fields, with experience and demonstrated expertise in managing large, relatively complex organizations, and/or, in a professional or scientific capacity, be accustomed to dealing with complex situations, preferably those with worldwide scope.”

The key qualifications the Board seeks across its membership to achieve a balance of diversity and experiences important to the Corporation include: financial expertise; experience as the CEO of a significant company or organization or as a next-level executive with responsibilities for global operations; experience managing large, complex organizations; experience on one or more boards of significant public or non-profit organizations; and expertise resulting from significant academic, scientific, or research activities. The Board also seeks diversity of life experiences and backgrounds, as well as gender and ethnic diversity.

5

The table below describes the particular experience, qualifications, attributes, and skills of each director nominee that led the Board to conclude that such person should serve as a director of the Company.

6

7

Director Independence

Our Corporate Governance Guidelines require that a substantial majority of the Board consist of independent directors. In general, the Guidelines require that an independent director must have no material relationship with ExxonMobil, directly or indirectly, except as a director. The Board determines independence on the basis of the standards specified by the New York Stock Exchange (NYSE), the additional standards referenced in our Corporate Governance Guidelines, and other facts and circumstances the Board considers relevant.

Under ExxonMobil’s Corporate Governance Guidelines, a director will not be independent if a reportable “related person transaction” exists with respect to that director or a member of the director’s family for the current or most recently completed fiscal year. See the Guidelines for Review of Related Person Transactions posted on the Corporate Governance section of our website and described in more detail under Related Person Transactions and Procedures on pages 15 to 16.

The Board has reviewed relevant relationships between ExxonMobil and each non-employee director and director nominee to determine compliance with the NYSE standards and ExxonMobil’s additional standards. The Board has also evaluated whether there are any other facts or circumstances that might impair a director’s independence. Based on that review, the Board has determined that all ExxonMobil non-employee directors and nominees are independent. The Board has also determined that each member of the Audit, Board Affairs, Compensation, and Public Issues and Contributions Committees (see membership table on page 9) is independent.

8

In recommending that each director and nominee be found independent, the Board Affairs Committee reviewed the following transactions, relationships, or arrangements. All matters described below fall within the NYSE and ExxonMobil independence standards.

Board Meetings and Committees; Annual Meeting Attendance

The Board met 10 times in 2014. ExxonMobil’s incumbent directors, on average, attended approximately 95 percent of Board and committee meetings during 2014. No director attended less than 75 percent of such meetings. ExxonMobil’s non-employee directors held five executive sessions in 2014.

As specified in our Corporate Governance Guidelines, it is ExxonMobil’s policy that directors should make every effort to attend the annual meeting of shareholders. All incumbent directors attended last year’s meeting.

The Board appoints committees to help carry out its duties. Board committees work on key issues in greater detail than would be possible at full Board meetings. Only non-employee directors may serve on the Audit, Compensation, Board Affairs, and Public Issues and Contributions Committees. Each committee has a written charter. The charters are posted on the Corporate Governance section of our website at exxonmobil.com/governance.

The table below shows the current membership of each Board committee and the number of meetings each committee held in 2014.

C = Chair            Ÿ = Member            (1) Other directors serve as alternate members on a rotational basis.

9

Below is additional information about each Board committee.

Board Affairs Committee

The Board Affairs Committee serves as ExxonMobil’s nominating and corporate governance committee. The Committee recommends director candidates, reviews non-employee director compensation, and reviews other corporate governance practices, including the Corporate Governance Guidelines. The Committee also reviews any issue involving an executive officer or director under ExxonMobil’s Code of Ethics and Business Conduct and administers ExxonMobil’s Related Person Transaction Guidelines.

The Committee has adopted Guidelines for the Selection of Non-Employee Directors that describe the qualifications the Committee looks for in director candidates. These Selection Guidelines, as well as the Committee’s charter, are posted on the Corporate Governance section of our website, and are described in more detail below and in the section titled Director Qualifications on pages 5 to 8.

A substantial majority of the Board must meet the independence standards described in the Corporate Governance Guidelines, and all candidates must be free from any relationship with management or the Corporation that would interfere with the exercise of independent judgment. Candidates should be committed to representing the interests of all shareholders and not any particular constituency. The Board must include members with the particular experience required for service on key Board committees, as described in the committee charters.

The Guidelines for the Selection of Non-Employee Directors state:

“ExxonMobil recognizes the strength and effectiveness of the Board reflect the balance, experience, and diversity of the individual directors; their commitment; and importantly, the ability of directors to work effectively as a group in carrying out their responsibilities. ExxonMobil seeks candidates with diverse backgrounds who possess knowledge and skills in areas of importance to the Corporation.”

In addition to seeking a diverse set of business or academic experiences, the Committee seeks a mix of nominees whose perspectives reflect diverse life experiences and backgrounds, as well as gender and ethnic diversity. The Committee does not use quotas but considers diversity along with the other requirements of the Selection Guidelines when evaluating potential new directors. The Committee has also instructed its executive search firm to include diversity as part of the candidate search criteria.

The Committee identifies director candidates primarily through recommendations made by the non-employee directors. These recommendations are developed based on the directors’ own knowledge and experience in a variety of fields, and research conducted by ExxonMobil staff at the Committee’s direction. The Committee has also engaged an executive search firm to help the Committee identify new director candidates. The firm identifies potential director candidates for the Committee to consider and helps research candidates identified by the Committee. Additionally, the Committee considers recommendations made by employee directors, shareholders, and others. All recommendations, regardless of the source, are evaluated on the same basis against the criteria contained in the Selection Guidelines.

The recommendation of Mr. Oberhelman was made by incumbent directors and the executive search firm.

Shareholders may send recommendations for director candidates to the Secretary at the address given under Contact Information on page 3. A submission recommending a candidate should include:

The procedures by which shareholders may recommend nominees have not changed materially since last year’s proxy statement.

10

The Committee also administers provisions of the Corporate Governance Guidelines that require a director to tender a resignation when there is a substantial change in the director’s circumstances. The Committee reviews the relevant facts to determine whether the director’s continued service would be appropriate and makes a recommendation to the Board.

Another responsibility of the Committee is to review and make recommendations to the Board regarding the compensation of the non-employee directors. The Committee uses an independent consultant, Pearl Meyer & Partners, to provide information on current developments and practices in director compensation. Pearl Meyer & Partners is the same consultant retained by the Compensation Committee to advise on executive compensation, but performs no other work for ExxonMobil.

Audit Committee

The Audit Committee oversees accounting and internal control matters. Its responsibilities include oversight of:

The Committee has direct authority and responsibility to appoint (subject to shareholder ratification), compensate, retain, and oversee the independent auditors.

The Committee also prepares the report that SEC rules require be included in the Corporation’s annual proxy statement. This report is on pages 59 to 60.

The Audit Committee has adopted specific policies and procedures for pre-approving fees paid to the independent auditors. Under the Audit Committee’s approach, an annual program of work is approved each October for the following categories of services: Audit, Audit-Related, and Tax. Additional engagements may be brought forward from time to time for pre-approval by the Audit Committee. Pre-approvals apply to engagements within a category of service, and cannot be transferred between categories. If fees might otherwise exceed pre-approved amounts for any category of permissible services, the incremental amounts must be reviewed and pre-approved prior to commitment. The complete text of the Audit Committee’s pre-approval policies and procedures is posted on the Corporate Governance section of ExxonMobil’s website.

The Board has determined that all members of the Committee are financially literate within the meaning of the NYSE standards, and that Mr. Brabeck-Letmathe, Ms. Burns, Dr. Faulkner, and Mr. George are “audit committee financial experts” as defined in the SEC rules.

Compensation Committee

The Compensation Committee oversees compensation for ExxonMobil’s senior executives, including salary, bonus, and incentive awards. They also oversee succession planning for key executive positions. The Committee’s charter is available on the Corporate Governance section of our website.

During 2014, the Committee established the ceiling for the 2014 short term and long term incentive award programs, approved the salary program for 2015, reviewed the individual performance and contributions of each senior executive including the CEO, granted individual incentive awards and set salaries for the senior executives, and reviewed progress on executive development and succession planning for senior positions.

11

The Compensation Committee’s report is on page 23.

The Committee does not delegate its responsibilities with respect to ExxonMobil’s executive officers and other senior executives (currently 27 positions). For other employees, the Committee delegates authority to determine individual salaries and incentive awards to a committee consisting of the Chairman and the Senior Vice Presidents of the Corporation. That committee’s actions are subject to a salary budget and aggregate annual ceilings on cash and equity incentive awards established by the Compensation Committee.

The Committee utilizes the expertise of an external independent consultant, Pearl Meyer & Partners. The Committee is solely and directly responsible for the appointment, compensation, and oversight of the consultant. The Committee considers factors that could affect Pearl Meyer & Partners’ independence, including that the consultant provides no other services for ExxonMobil other than its engagement by the Committee and the Board Affairs Committee as described below. Based on this review, the Committee has determined the consultant’s work for the Committee to be free from conflicts of interest.

At the direction of the Committee, the consultant provides the following services:

The independent consultant’s input is given serious consideration as part of the Committee’s decision-making process but is not assigned a weight versus the other matters considered by the Committee as described in the Compensation Discussion and Analysis beginning on page 24.

In addition, at the direction of the Chair of the Board Affairs Committee, Pearl Meyer & Partners provides an annual survey of non-employee director compensation for use by that Committee.

The Compensation Committee meets with ExxonMobil’s CEO and other senior executives during the year to review the Corporation’s business results and progress on strategic plans. The Committee uses this input to help determine the aggregate annual ceilings to be set for the Corporation’s cash and stock-based incentive award programs. The CEO also provides input to the Committee regarding performance assessments for ExxonMobil’s other senior executives and makes recommendations to the Committee with respect to salary and incentive awards for these executives and succession planning for senior positions. The CEO does not, however, participate in or provide input on decisions regarding his own compensation.

12

The Committee uses tally sheets to assess total compensation for the Corporation’s senior executives. The tally sheets value all elements of cash compensation; incentive awards, including stock-based grants; the annual change in pension value; and other benefits and perquisites. The tally sheets also display the value of outstanding stock-based awards and lump sum pension estimates.

Additional information on tally sheets and other analytical tools used by the Committee to facilitate compensation decisions is on page 43.

The Compensation Committee determines whether ExxonMobil’s compensation program could result in inappropriate risk taking. The assessment process includes examining each element of the Company’s compensation policies and practices to determine whether they encourage or reward excessive risk taking. Based on its assessment, the Committee does not believe that ExxonMobil’s compensation policies and practices create any material adverse risks for the Company.

The key design features of our compensation program that discourage inappropriate risk taking are summarized below. These elements are also described in more detail in the Compensation Discussion and Analysis section of this proxy statement.

The objective of the Compensation Committee is to grant more than 50 percent of compensation in the form of equity awards with long restriction periods and 10 to 20 percent as an annual bonus. Salary comprises 10 percent or less of pay granted annually. The allocation of these compensation elements for the Named Executive Officers for 2014 is shown on pages 38 and 46. In the judgment of the Committee, this mix of short and long term incentives strikes an appropriate balance in aligning the interests of senior executives with the business priorities of the Company and sustainable growth in long-term shareholder value.

Long Restriction Periods. As noted above, senior executives are granted a substantial portion of annual compensation in the form of restricted stock or restricted stock units and these equity awards are restricted from sale for extended periods of time. Specifically, half of the annual equity award may not be sold for 10 years from grant date or until retirement, whichever is later. The other half is restricted for five years.

Risk of Forfeiture. During these long restriction periods, the equity award is at risk of forfeiture for resignation or detrimental activity. The long vesting periods on equity awards and the risk of forfeiture together support an appropriate risk/reward profile that reinforces the long-term orientation expected of senior executives.

Delayed Payout. Payout of half of the annual bonus is delayed. This is a unique feature of our compensation program relative to many comparator companies and further discourages inappropriate risk taking; the timing of the delayed payout is determined by earnings performance.

Risk of Forfeiture. Similar to equity awards, the delayed portion of the bonus is subject to risk of forfeiture for resignation or detrimental activity.

Recoupment. The entire annual bonus is subject to recoupment (“claw-back”) in the event of material negative restatement of the Corporation’s reported financial or operating results. The recoupment provision reinforces the importance of the Company’s financial controls and compliance programs.

The CEO and the other Named Executive Officers do not have employment contracts, severance agreements, or change-in-control arrangements with the Company. The Committee believes that inappropriate risk taking is discouraged by the fact that senior executives are “at-will” employees of the Company.

All of ExxonMobil’s U.S. executives (more than 1,000), including the Named Executive Officers, are eligible for the same salary, incentive, and retirement programs, which are reviewed by the Compensation Committee. We do not have special programs specifically for the CEO or other Named Executive Officers. Inappropriate risk taking is discouraged at all levels of the Company through similar compensation design features and allocation of awards.

13

For more information on the Committee’s approach to executive compensation and the decisions made by the Committee for 2014, refer to the Compensation Discussion and Analysis beginning on page 24.

Finance Committee

The Finance Committee reviews ExxonMobil’s financial policies and strategies, including our capital structure, dividends, and share purchase program. The Committee authorizes the issuance of corporate debt subject to limits set by the Board. The Committee’s charter is available on the Corporate Governance section of our website.

Public Issues and Contributions Committee

The Public Issues and Contributions Committee reviews the effectiveness of the Corporation’s policies, programs, and practices with respect to safety, security, health, the environment, and social issues. The Committee hears reports from operating units on safety and environmental activities, and also visits operating sites to observe and comment on current operating practices. In addition, the Committee reviews the level of ExxonMobil’s support for education and other public service programs, including the Company’s contributions to the ExxonMobil Foundation. The Foundation works to improve the quality of education in the United States at all levels, with special emphasis on math and science. The Foundation also supports the Company’s other cultural and public service giving. The Committee’s charter is available on the Corporate Governance section of our website.

Executive Committee

The Executive Committee has broad power to act on behalf of the Board. In practice, the Committee meets only when it is impractical to call a meeting of the full Board.

Shareholder Communications

The Board Affairs Committee has approved and implemented procedures for shareholders and other interested persons to send written or electronic communications to individual directors, including the Presiding Director, Board committees, or the non-employee directors as a group.

Additional instructions and procedures for communicating with the directors are posted on the Corporate Governance section of our website at exxonmobil.com/proceduresdircom.

Code of Ethics and Business Conduct

The Board maintains policies and procedures (which we refer to in this proxy statement as the “Code”) that represent both the code of ethics for the principal executive officer, principal financial officer, and principal accounting officer under SEC rules, and the code of business conduct and ethics for directors, officers, and employees under NYSE listing standards. The Code applies to all directors, officers, and employees. The Code includes a Conflicts of Interest Policy under which directors, officers, and employees are expected to avoid any actual or apparent conflict between their own personal interests and the interests of the Corporation.

The Code is posted on the ExxonMobil website at exxonmobil.com/code. The Code is also included as an exhibit to our Annual Report on Form 10-K. Any amendment of the Code will be posted promptly on our website.

The Corporation maintains procedures for administering and reviewing potential issues under the Code, including procedures that allow employees to make complaints without identifying themselves. The Corporation also conducts periodic mandatory business practice training sessions, and requires regular employees and non-employee directors to make annual compliance certifications.

14

The Board Affairs Committee will initially review any suspected violation of the Code involving an executive officer or director and will report its findings to the Board. The Board does not envision that any waiver of the Code will be granted. Should such a waiver occur, it will be promptly disclosed on our website.

Related Person Transactions and Procedures

In accordance with SEC rules, ExxonMobil maintains Guidelines for Review of Related Person Transactions. These Guidelines are available on the Corporate Governance section of our website.

In accordance with the Related Person Transaction Guidelines, all executive officers, directors, and director nominees are required to identify, to the best of their knowledge after reasonable inquiry, business and financial affiliations involving themselves or their immediate family members that could reasonably be expected to give rise to a reportable related person transaction. Covered persons must also advise the Secretary of the Corporation promptly of any change in the information provided, and will be asked periodically to review and reaffirm their information.

For the above purposes, “immediate family member” includes a person’s spouse, parents, siblings, children, in-laws, and step-relatives.

Based on this information, we review the Company’s own records and make follow-up inquiries as may be necessary to identify potentially reportable transactions. A report summarizing such transactions and including a reasonable level of detail is then provided to the Board Affairs Committee. The Committee oversees the Related Person Transaction Guidelines generally and reviews specific items to assess materiality.

In assessing materiality for this purpose, information will be considered material if, in light of all circumstances, there is a substantial likelihood a reasonable investor would consider the information important in deciding whether to buy or sell ExxonMobil stock or in deciding how to vote shares of ExxonMobil stock. A director will abstain from the decision on any transactions involving that director or his or her immediate family members.

Under SEC rules, certain transactions are deemed not to involve a material interest (including transactions in which the amount involved in any 12-month period is less than $120,000 and transactions with entities where a related person’s interest is limited to service as a non-employee director). In addition, based on a consideration of ExxonMobil’s facts and circumstances, the Committee will presume that the following transactions do not involve a material interest for purposes of reporting under SEC rules:

Transactions or relationships not covered by the above standards will be assessed by the Committee on the basis of the specific facts and circumstances.

The following disclosures are made as of February 25, 2015, the date of the most recent Board Affairs Committee review of potential related person transactions.

15

ExxonMobil and its affiliates have about 75,000 regular employees around the world and employees related by birth or marriage may be found at all levels of the organization. ExxonMobil employees do not receive preferential treatment by reason of being related to an executive officer, and executive officers do not participate in hiring, performance evaluation, or compensation decisions for family members. ExxonMobil’s employment guidelines state, “Relatives of Company employees may be employed on a non-preferential basis. However, an employee should not be employed by or assigned to work under the direct supervision of a relative, or to report to a supervisor who in turn reports to a relative of the employee.”

Several current ExxonMobil executive officers have family members also employed by the Corporation or its affiliates: M.W. Albers (Senior Vice President) has a daughter employed by ExxonMobil Development Company; R.N. Schleckser (Vice President and Treasurer) has a brother employed by ExxonMobil Refining & Supply Company; S.M. Greenlee (Vice President) has a son employed by ExxonMobil Development Company; and J.J. Woodbury (Vice President – Investor Relations and Secretary) has a son employed by XTO Energy, Inc. In each case, the total value of the family member’s current annualized compensation (including benefits) exceeds the SEC threshold for disclosure. However, consistent with ExxonMobil’s Related Person Transaction Guidelines, we do not consider any of the relationships noted above to be material within the meaning of the related person transaction disclosure rules.

The Board Affairs Committee also reviewed ExxonMobil’s ordinary course business with companies for which non-employee directors or their immediate family members serve as executive officers. The Committee determined that, in accordance with the categorical standards described above, none of those matters represent reportable related person transactions. See Director Independence on page 8.

The Committee also determined that no related person transactions occurred during the year involving any of the investors who have reported ownership of 5 percent or more of ExxonMobil’s outstanding common stock. See “Certain Beneficial Owners” on page 22.

We are not aware of any related person transactions required to be reported under applicable SEC rules since the beginning of the last fiscal year where our policies and procedures did not require review, or where such policies and procedures were not followed.

The Corporation’s Related Person Transaction Guidelines are intended to assist the Corporation in complying with its disclosure obligations under SEC rules. These procedures are in addition to, not in lieu of, the Corporation’s Code of Ethics and Business Conduct.

16

ITEM 1 – ELECTION OF DIRECTORS

The Board of Directors has nominated the director candidates named on the following pages. Personal information on each of our nominees, including public company directorships during the past five years, is provided. All of our nominees currently serve as ExxonMobil directors except for Mr. Oberhelman, who has been nominated by the Board for first election as a director at the annual meeting.

All director nominees have stated they are willing to serve if elected. If a nominee becomes unavailable before the election, your proxy authorizes the people named as proxies to vote for a replacement nominee if the Board names one. Alternatively, the Board may reduce its size to equal the number of remaining nominees.

The Board recommends you vote FOR each of the following candidates:

17

18

19

DIRECTOR COMPENSATION

Director compensation elements are designed to:

Non-employee director compensation levels are reviewed by the Board Affairs Committee each year, and resulting recommendations are presented to the full Board for approval. The Committee uses an independent consultant, Pearl Meyer & Partners, to provide information on current developments and practices in director compensation. Pearl Meyer & Partners is the same consultant retained by the Compensation Committee to advise on executive compensation, but performs no other work for ExxonMobil.

ExxonMobil employees receive no additional pay for serving as directors.

20

Non-employee directors receive compensation consisting of cash and equity in the form of restricted stock. Non-employee directors are also reimbursed for reasonable expenses incurred to attend Board meetings or other functions relating to their responsibilities as a director of Exxon Mobil Corporation.

The annual cash retainer for non-employee directors in 2014 was $110,000 per year. Chairs of the Audit and Compensation Committees and the Presiding Director receive an additional $10,000 per year.

A significant portion of director compensation is paid in restricted stock to align director compensation with the long-term interests of shareholders. The annual restricted stock award grant for incumbent non-employee directors is 2,500 shares. A new non-employee director receives a one-time grant of 8,000 shares of restricted stock upon first being elected to the Board.

While on the Board, the non-employee director receives the same cash dividends on restricted shares as a holder of regular common stock, but the non-employee director is not allowed to sell the shares. The restricted shares may be forfeited if the non-employee director leaves the Board early, i.e., before the retirement age of 72, as specified for non-employee directors.

Current and former non-employee directors of Exxon Mobil Corporation are eligible to participate in the ExxonMobil Foundation’s Educational and Cultural Matching Gift Programs under the same terms as the Corporation’s U.S. employees.

Director Compensation for 2014

Each director received an annual grant of 2,500 restricted shares in January 2014. The valuation of these awards is based on a market price of $100.07 on the date of grant.

21

At year-end 2014, the aggregate number of restricted shares held by each director was as follows:

The non-employee directors are not entitled to any additional payments or benefits as a result of leaving the Board or death except as described above. The non-employee directors are not entitled to any payments or benefits resulting from a change in control of the Corporation.

CERTAIN BENEFICIAL OWNERS

Based on our review of ownership reports filed with the SEC, the firms listed below are the only beneficial owners of more than 5 percent of ExxonMobil’s outstanding common stock as of December 31, 2014.

DIRECTOR AND EXECUTIVE OFFICER STOCK OWNERSHIP

These tables show the number of ExxonMobil common shares each executive named in the Summary Compensation Table on page 48 and each non-employee director or director nominee owned on February 28, 2015. In these tables, ownership means the right to direct the voting or the sale of shares, even if those rights are shared with someone else. None of these individuals owns more than 0.05 percent of the outstanding shares.

22

On February 28, 2015, ExxonMobil’s incumbent directors and executive officers (33 people) together owned 7,193,228 shares of ExxonMobil stock and zero shares covered by exercisable options, representing about 0.17 percent of the outstanding shares.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Securities and Exchange Act of 1934 requires our executive officers and directors to file reports of their ownership and changes in ownership of ExxonMobil stock on Forms 3, 4, and 5 with the SEC. We are not aware of any unfiled or late reports for 2014.

COMPENSATION COMMITTEE REPORT

The Compensation Committee of the Board of Directors has reviewed and discussed the Compensation Discussion and Analysis with management of the Corporation. Based on that review and discussion, we recommended to the Board that the Compensation Discussion and Analysis be included in the Corporation’s proxy statement for the 2015 annual meeting of shareholders, and also incorporated by reference in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2014.

23

COMPENSATION DISCUSSION AND ANALYSIS

The Compensation Discussion and Analysis (CD&A) and Executive Compensation Tables are organized as follows:

24

2014 Say-On-Pay

The following section summarizes key areas of positive shareholder feedback received and steps taken in this Overview to address requests for additional information.

25

Business Results and Basis for Compensation Decisions

The following illustrates the effectiveness of ExxonMobil’s compensation program in delivering superior results for shareholders over the long term. These results, in addition to individual performance, experience, and level of responsibility, helped form the basis of compensation decisions made by the Compensation Committee in 2014.

Financial & Operating Performance

Strategic Business Results

Upstream

Downstream

Chemical

26

Long-Term Business Performance

Safety is a core value for ExxonMobil, and nothing receives more attention from management. Ÿ    Best-ever performance in 2014. Ÿ    Safety results are leading indicator of business performance.		ExxonMobil’s superior cash flow preserves capacity for investments and shareholder distributions. Ÿ    Generated $117 billion of free cash flow since beginning of 2010. Ÿ    Reflects strong business performance and disciplined capital allocation approach.

ExxonMobil’s proven business model delivers industry-leading ROCE. Ÿ    Disciplined investments through the business cycle position the Company for long-term performance. Ÿ    Strength of integrated portfolio, project management, and technology application.		ExxonMobil maintains industry-leading shareholder distributions through the business cycle. Ÿ    Dividends per share up 10 percent per year over past 10 years. Ÿ    Distributed 46 cents of every dollar from operating cash flow and asset sales generated from 2010 to 2014.

(1) Employees and contractors. Includes XTO Energy Inc. data beginning in 2011. (2) Workforce safety data from participating American Petroleum Institute companies (2014 industry data not available at time of publication). (3) Competitor data estimated on a consistent basis with ExxonMobil and based on public information. For more information concerning ROCE, see pages 44 and 45 of the Summary Annual Report included with the 2015 Proxy Statement. (4) Competitor data estimated on a consistent basis with ExxonMobil and based on public information. BP excludes impact of GOM spill and TNK-BP divestment. For more information on Free Cash Flow, see page 45 of the Summary Annual Report included with the 2015 Proxy Statement. (5) Competitor data estimated on a consistent basis with ExxonMobil and based on public information. Total shareholder distributions divided by market capitalization. Shareholder distributions consist of cash dividends and share buybacks. For more information, see page 45 of the Summary Annual Report included with the 2015 Proxy Statement.

27

ExxonMobil leads the industry in total shareholder return (TSR) in all performance periods. Ÿ    The most relevant TSR comparison is across companies in the same industry of comparable size and scale.

ExxonMobil generated superior returns through a range of economic environments and business cycles.

(6) Annualized returns assuming dividends are reinvested when paid. (7) BP, Chevron, Royal Dutch Shell, and Total weighted by market capitalization. Shareholder return data for Total available from 1992. (8) AT&T, Boeing, Caterpillar, Chevron, Ford, General Electric, IBM, Johnson & Johnson, Pfizer, Procter & Gamble, United Technologies, and Verizon weighted by market capitalization.

28

CEO Compensation

Almost two-thirds of the CEO compensation granted by the Compensation Committee and reported in the Summary Compensation Table for 2014 is in the form of a long-term equity award. The CEO will not actually receive the stock for many years in the future, and until such time the award remains at risk of forfeiture. Tying compensation paid out to the stock price at the end of these extended vesting periods in effect creates the ultimate measurement and link to company performance. In addition, almost all of the 2014 increase in reported pay is due to a valuation change in pension for accrual purposes – the CEO’s pension will be realized only at retirement, with final value paid out dependent on salary, bonus, and interest rate at that time.

Reported Pay