WAL*MART
LEGAL DFPARTMENT

                                 POWER OF ATTORNEY

The undersigned hereby designates Jeffrey J. Gearhart, Gordon Y.
Allison, Geoffrey W. Edwards,and Jennifer F. Rudolph or
either of them acting singly and with full power of
substitution, as the undersigned's true and lawful
attorney-in-fact to:

(1) prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the U.S. Securities and Exchange Commission
(the "SEC") a Form ID, including amendments thereto, and any other
documents necessary or appropriate to obtain codes, passwords and
passphrases enabling the undersigned to make electronic
filings with the SEC of reports required by
Section 16(a) of the Securities Exchange Act of 1934,
as amended, or any rule or regulation of the SEC;

(2) to execute and file on the undersigned's behalf all
Forms 3, 4, and 5 (including any amendments thereto)
that the undersigned may be required to file with
the SEC and other regulatory bodies as a result
of the undersigned's ownership of or transactions in
securities of Wal-Mart Stores, Inc., including
any filing required as a result of any indirect ownership
of securities attributed to the undersigned under applicable
law; and

(3) 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 SEC and any securities exchange or similar authority.

The authority of Jeffrey J. Gearhart, Gordon Y. Allison,
Geoffrey W. Edwards, and Jennifer F. Rudolph under this
Power of Attorney shall continue until the undersigned is
no longer required to file Forms 3, 4, and 5 with regard
to the undersigned's ownership of or transactions in securities
of Wal-Mart Stores, Inc., unless earlier revoked in writing.
The undersigned acknowledges that neither Wal-Mart Stores. Inc.,
Jeffrey J. Gearhart, Gordon Y. Allison, Geoffrey W. Edwards,
nor Jennifer F. Rudolph are assuming
any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934, as
amended, or any rule or regulation of the SEC.


Date: 2/29/08

Gregory B. Penner