POWER OF ATTORNEY

     KNOW ALL PERSONS BY THESE PRESENTS that BROAD STREET PRINICIPAL
INVESTMENTS, L.L.C. (the "Company") does hereby make, constitute and appoint
each of Jamison Yardley, Crystal Orgill, Chad Christensen, and Carson Williams,
acting individually, its true and lawful attorney, to execute and deliver in
its name and on its behalf whether the Company is acting individually or as
representative of others, any and all filings required to be made by the
Company under the Securities Exchange Act of 1934, (as amended, the "Act"),
with respect to securities which may be deemed to be beneficially owned by the
Company under the Act, giving and granting unto each said attorney-in-fact
power and authority to act in the premises as fully and to all intents and
purposes as the Company might or could do if personally present by one of its
authorized signatories, hereby ratifying and confirming all that said attorney-
in-fact shall lawfully do or cause to be done by virtue hereof.

     THIS POWER OF ATTORNEY shall remain in full force and effect until the
earlier of (i) August 12, 2024 and (ii) such time that it is revoked in writing
by the undersigned; provided that in the event the attorney-in-fact ceases to
be an employee of the Company or its affiliates or ceases to perform the
function in connection with which he/she was appointed attorney-in- fact prior
to such time, this Power of Attorney shall cease to have effect in relation to
such attorney-in-fact upon such cessation but shall continue in full force and
effect in relation to any remaining attorneys-in-fact. The Company has the
unrestricted right unilaterally to revoke this Power of Attorney.

     This Power of Attorney shall be governed by, and construed in accordance
with, the laws of the State of New York, without regard to rules of conflicts
of law.

     IN WITNESS WHEREOF, the undersigned has duly subscribed these presents as
of August 13, 2021.

BROAD STREET PRINICIPAL INVESTMENTS, L.L.C.


By: /s/ William Y. Eng
Name: William Y. Eng
Title: Vice President