Power of Attorney
(Limited to Execution of Forms 3, 4 and 5)


I, P. Anthony Lannie, do hereby constitute and appoint Rajesh Sharma and
 Patrick Whitman (with full power to each of them to act alone) as my true
and lawful agents and attorneys-in-fact with full power and authority to
execute and deliver on my behalf in accordance with Securities and Exchange
Commission rules and regulations all reports of changes in my beneficial
ownership of securities issued by Altus Midstream Company on Forms 3, 4
and 5 as may be deemed advisable.  I hereby ratify and confirm all that
each such agent and attorney-in-fact may do by virtue hereof with respect
to reports of my beneficial ownership of securities issued by Altus
Midstream Company.

This power of attorney shall remain in full force and effect until I am
no longer required to file Forms 3, 4 and 5 with respect to changes in my
beneficial ownership of securities issued by Altus Midstream Company,
unless earlier revoked by me in writing delivered to the attorneys-in-fact
named above.

In witness whereof, I have duly executed this power of attorney effective
as of this 14th day of November 2018.

/s/ P. Anthony Lannie

State of Texas
County of Harris

On this 14th day of November 2018, before me personally came P. Anthony
Lannie, to me known, and acknowledged this instrument.
Witness my hand and official seal.


/s/ Tanika Law
[Seal for Tanika Law]
[Notary Public, State of Texas]
[My Commission Expires 09-18-2020]