POWER OF ATTORNEY

Know all by these presents that the
undersigned hereby constitutes and appoints
each of Craig L. Weinstock and Brigitte
M. Hunt, or either of them signing singly,
and with full power of substitution, the
undersigned's true and lawful
attorney-in-fact to:

(1) execute for and on behalf of the
undersigned, in the undersigned's capacity as
an officer and/or director of NOV Inc.
(the "Company"), Forms 3, 4, and 5 in accordance
with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder;

(2) do and perform any and all acts for
and on behalf of the undersigned which may
be necessary or desirable to complete and
execute any such Form 3, 4, or 5, complete
and execute any amendment or amendments thereto,
and timely file such form with the United States
Securities and Exchange Commission and any
stock exchange or similar authority; and

(3) take any other action of any type
whatsoever in connection with the
foregoing which, in the opinion of the
attorney-in-fact, may be of benefit to, in
the best interest of, or legally required
by, the undersigned, it being understood
that the documents executed by such
attorney-in-fact on behalf of the
undersigned pursuant to this Power of
Attorney shall be in such form and shall
contain such terms and conditions as such
attorney-in-fact may approve in such
attorney-in-fact's discretion.

The undersigned hereby grants to each such
attorney-in-fact full power and authority
to do and perform any and every act and
thing whatsover requisite, necessary, or
proper to be done in the exercise of any of
the rights and powers herein granted, as
fully to all intents and purposes as the
undersigned might or could do if personally
present, with full power of substitution or
revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes,
shall lawfully do or cause to be done by
virtue of this power of attorney and the
rights and powers herein granted.  The
undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such
capacity at the request of the undersigned,
are not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to
comply with Section 16 of the Securities
Exchange Act of 1934.

This Power of Attorney shall remain in full
force and effect until the undersigned is no
longer required to file Forms 3, 4, and 5 with
respect to the undersigned's holdings of and
transactions in securities issued by the
Company, unless earlier revoked by the
undersigned in a signed writing delivered to
the foregoing attorneys-in-fact. This Power
of Attorney supersedes all previous Powers
of Attorney relating to the subject matter
hereof.

IN WITNESS WHEREOF, the undersigned has
caused this Power of Attorney to be executed as
of this 6th day of March 2024.

/s/ Patricia Martinez