LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

		KNOW ALL MEN BY THESE PRESENTS, that I, KENNETH W. MOORE of  the Town of
WESTPORT, County of FAIRFIELD, State of CONNECTICUT, reposing special trust and
confidence in THOMAS R. DENISON, of the Town of DARIEN, County of FAIRFIELD,
State of CONNECTICUT, and/or ANNE E. GOLD, of the Town of RYE, County of
WESTCHESTER, State of NEW YORK, have made, constituted and appointed, and by
these presents do make, constitute and appoint each of the said THOMAS R.
DENISON and/or ANNE E. GOLD, my true and lawful attorney-in-fact and agent, both
FOR ME PERSONALLY and in my name, place and stead, IN MY CAPACITY AS AN OFFICER
OR DIRECTOR OF FIRST RESERVE CORPORATION ("FRC"), FIRST RESERVE GP IX, INC. ("GP
IX"), FIRST RESERVE GP X, INC. ("GP X"), FR IX OFFSHORE GP LIMITED ("OFFSHORE
IX"), or FR X OFFSHORE GP LIMITED ("OFFSHORE X"), or any entity of which any the
foregoing is the direct or indirect general partner or for which any of the
foregoing otherwise has the authority to act (collectively with FRC, GP IX, GP
X, OFFSHORE IX, or OFFSHORE X, the "First Reserve Entities"), with full power
and authority to do and perform each and every act necessary, as fully as I
might do if personally present, to accomplish and complete the following acts or
transactions:

1.	With respect to any entity in which any First Reserve Entity has an
investment (each a "Company"), sign on my behalf, any and all filings (including
filings with the Securities and Exchange Commission), agreements, notices or
documents arising from, or related to any Company, including, (a) any holdings
or investments of any First Reserve Entity in any Company; and (b) any holdings
or investments of mine in any Company.

	2.	Seek or obtain, as my representative and on my behalf, from any third party,
including brokers, employee benefit plan administrators and trustees,
information on transactions involving any Company or the securities of any
Company, and I hereby authorize any such persons to release any such information
to either attorney-in-fact designated hereunder and approve and ratify any such
release of information; and

	3.	Perform any and all other acts which in the discretion of either such
attorney-in-fact are necessary or desirable for and on my behalf in connection
with the foregoing.

	I acknowledge that:

(a)	this Power of Attorney authorizes, but does not require, either such
attorney-in-fact to act in his or her discretion on information provided to
either such attorney-in-fact without independent verification of such
information;

(b)	any documents prepared and/or executed by either such attorney-in-fact on my
behalf pursuant to this Power of Attorney will be in such form and will contain
such information and disclosure as either such attorneys-in-fact, in his or her
discretion, deems necessary or desirable;

(c)	neither such attorney-in-fact nor any Company assumes (i) any liability for
my responsibility to comply with the requirements of any law or regulation,
including without limitation the Securities Act of 1933, as amended (the
"Securities Act") or the Exchange Act of 1934, as amended (the "Exchange Act"),
or (ii) any liability of mine for any failure to comply with such requirements;
and

(d)	this Power of Attorney does not relieve me from responsibility for
compliance with my obligations under any law or regulation, including without
limitation the requirements under the Securities Act and the Exchange Act.

	I hereby give and grant THOMAS R. DENISON and/or ANNE E. GOLD, in the capacity
set forth above, full power and authority to do and perform all and every act
and thing whatsoever requisite, necessary or appropriate to be done in and about
the foregoing matters as fully to all intents and purposes as I might or could
do if present, hereby ratifying all that either such attorney-in-fact of, for
and on my behalf, shall lawfully do or cause to be done by virtue of this Power
of Attorney.

This POWER OF ATTORNEY shall remain in effect until revoked and shall not be
affected by disability of the Principal.

EXECUTED this 14th day of February, 2006.

/s/ Kenneth W. Moore


STATE OF CONNECTICUT)
				)SS.
COUNTY OF FAIRFIELD)

The foregoing instrument was acknowledged before me this 14th day of February,
2006, by Kenneth W. Moore, the Principal.

Witness my hand and official seal	/s/Deborah Alza, Notary
My commission expires:	April 30, 2010

Specimen Signature of Agent (Attorney)
/s/ Thomas R. Denison

Specimen Signature of Agent (Attorney)
/s/ Anne E. Gold