LIMITED POWER OF ATTORNEY
           The undersigned officer and/or director of United Security Bancshares, Inc. (the
"Company") hereby constitutes and appoints each of R. Terry Phillips, Robert Steen and Beverly J.
Dozier, 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 and/or director of the Company, any and all Forms 3, 4 and 5 prepared for
and on behalf of the undersigned pursuant to Section 16(a) of the Securities
Exchange Act of 1934, as amended, and the rules promulgated thereunder (the
"Exchange Act"), and any other forms or reports that the undersigned may be
required to file in connection with the undersigned's ownership, acquisition or
disposition of securities issued by the Company; and
(2)	do and perform any and all acts for and on behalf of the undersigned that may be
necessary or desirable to complete and execute any such Form 3, 4 or 5, or other
form or report, to complete and execute any amendment or amendments thereto and
to timely file such form or report with the United States Securities and Exchange
Commission (the "SEC") and any stock exchange or similar authority; and
(3)	take any other action of any type whatsoever in connection with the foregoing that,
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
Limited 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 to each 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, or such attorney-in-fact's
substitute or substitutes, 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
attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16
of the Exchange Act.

       This Limited Power of Attorney shall remain in full force and effect until the undersigned is
no longer required to file Forms 3, 4 and 5, or other forms or reports, with respect to the
undersigned's holdings of and transactions in securities issued by the Company, unless earlier
revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

       By signing below, the undersigned does hereby revoke any and all other power of attorney
documents previously and otherwise executed in connection with the undersigned's obligations as
an officer and/or director of the Company to prepare and file Forms 3, 4 and 5, or other forms or
reports, or any amendment or amendments thereto, with the SEC and any stock exchange or similar
authority, pursuant to Section 16(a) of the Exchange Act.  The undersigned hereby gives notice to
all who have received, relied on or acted upon such previously executed power of attorney
documents and all other interested parties that the undersigned withdraws every power and
authority thereby given and declares such power of attorney documents null and void and of no
further force or effect.
       IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be
executed as of this 21st day of January, 2010.
/s/ John Lee McPhearson
       Printed Name:  John Lee McPhearson