POWER OF ATTORNEY

The undersigned officer or director of Exxon Mobil Corporation,
a New Jersey corporation ("ExxonMobil"), constitutes and
appoints each of J. Powell Fancher, Roy V. Richter, and Angela M. Sage,
or any of them acting singly, as his or her true and lawful
attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him or her and in his or her name, place and
stead, in any and all capacities, to prepare and sign, including by
electronic signature, any and all forms of report (including any
amendments thereto) with respect to securities of ExxonMobil
required under Section 13 or Section 16 of the Securities Exchange
Act of 1934, as amended, or any rule or regulation thereunder, or
under Rule 144 of the Securities Act of 1933, as amended, and to
prepare, sign and submit any documents necessary or appropriate to
obtain codes and passwords enabling the undersigned to make
electronic filings with the Securities and Exchange Commission, and
to file such forms of report, and any other documents in connection
therewith, with the Securities and Exchange Commission, any stock
exchange and ExxonMobil, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform
each and every act and thing requisite and necessary to be done,
as fully for all intents and purposes as he or she might or could do
in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them or their or his or her
substitute or substitutes, may lawfully do or cause to be done by
virtue hereof.

This power of attorney shall remain in effect until the undersigned
is no longer required to file any of the forms of report described
above with respect to securities of Exxon Mobil Corporation, unless
earlier revoked by the undersigned in a signed writing delivered to
the foregoing attorneys-in-fact.  Effective as of the date of this
power of attorney, the undersigned hereby revokes any and all
earlier-dated powers of attorney given by the undersigned with respect
to ExxonMobil securities reporting under said Section 13, Section 16
or Rule 144.

IN WITNESS WHEREOF, the undersigned has executed this power of
attorney as of the date set forth below.


  July 18, 2023          Gregory J. Goff
     Date	                   Signature

  Spring, Texas
 Location (City, State)