POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby
constitutes and appoints Robert K. Reeves, Amanda M. McMillian,
Anne V. Bruner, Rachelle Maniago-Earls and Courtney H. Landry,
signing singly, 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 of Anadarko Petroleum Corporation
(the "Company"), Forms ID, 3, 4 and 5, pursuant to Section 16(a) of
the Securities Exchange Act of 1934 and the rules thereunder, and Form 144,
pursuant to Rule 144 under the Securities Act of 1933 and the rules
thereunder, if required; and

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,
Form 4, Form 5 or Form 144 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 such 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 such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
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 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
attorney-in-fact, in serving in such capacity at the request of the
undersigned, is not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16(a) of the
Securities Exchange Act of 1934 or Rule 144 of the Securities Act of 1933.

This Power of Attorney shall remain in full force and effect until
the undersigned is no longer an officer of the Company unless earlier
revoked by the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact; provided, however, this Power of Attorney will expire
immediately upon the termination of employment of any attorney-in-fact
as to that attorney-in-fact only, but not as to any other appointed
attorney-in-fact hereunder.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 1st day of May, 2017.


/s/ Bradley J. Holly
Bradley J. Holly