OMNIAMERICAN BANCORP, INC.
                                                                  PRESS RELEASE
FOR IMMEDIATE RELEASE

Contact: Randi Mitchell
Vice President Marketing
817-367-4659
Randi.Mitchell@OmniAmerican.com
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                  OMNIAMERICAN BANCORP CELEBRATES FIRST DAY OF
                               TRADING ON NASDAQ

        Initial Public Offering generates $119,025,000 in gross proceeds

Fort Worth, Texas - January 21, 2010 - OmniAmerican Bancorp (NASDAQ:  OABC), the
newly-created holding company for Fort Worth-based  OmniAmerican Bank, announced
today that it opened stock  trading on the NASDAQ  Global  Market  following the
closure of an initial public offering that closed at the adjusted maximum of the
offering range and generated gross proceeds of $119,025,000.

"The  overwhelming  response  to our  initial  public  offering  has  been  very
encouraging and, in light of the current economic conditions,  is a testament to
the faith that our members have in the OmniAmerican  leadership  team," said Tim
Carter,  president and CEO of OmniAmerican  Bank. "We are excited to provide our
depositors  a chance  to  share in the  ownership  of our  institution  and look
forward to using this revenue to grow and create new opportunities for customers
and employees."

Members of OmniAmerican  Bank approved a Plan of Conversion on January 15, 2010,
allowing  the  Bank  to  proceed  with  the  conversion   and  stock   offering.
OmniAmerican  Bancorp's initial subscription  offering sold 11,902,500 shares of
common stock at $10.00 per share to eligible account  holders,  depositors as of
March 31, 2008, of OmniAmerican Bank.

The offering and conversion were managed by Keefe,  Bruyette & Woods,  Inc. Luse
Gorman Pomerenk & Schick,  P.C.,  Washington D.C.,  served as special counsel to
OmniAmerican Bank.



OmniAmerican  Bank's financial  advisor and marketing agent,  Keefe,  Bruyette &
Woods,  Inc.,  has  reviewed all orders and has posted  allocation  information.
Consistent  with  information  on a  subscriber's  Receipt of Order,  allocation
information can be obtained at https://allocations.kbw.com.

OmniAmerican Bank is a federally  chartered  savings bank  headquartered in Fort
Worth, Texas. Originally chartered in 1956 as a federal credit union serving the
active  and  retired  military   personnel  of  Carswell  Air  Force  Base,  the
institution  completed its  conversion  from a credit union to a federal  mutual
savings  bank on January 1, 2006 and  completed  its  conversion  from mutual to
stock form on January 20, 2010.

About OmniAmerican Bancorp
OmniAmerican  Bancorp is traded under the NASDAQ  Global Market under the symbol
"OABC"  and is  the  holding  company  for  OmniAmerican  Bank,  a  full-service
financial  institution  headquartered in Fort Worth,  Texas.  OmniAmerican  Bank
operates 16 full-service  branches in the Dallas/Fort Worth Metroplex and offers
a  full  array  of  consumer  products  and  services  plus  business/commercial
services,  mortgages  and  retirement  planning.  Founded  over  50  years  ago,
OmniAmerican  has grown to manage assets over $1 billion,  providing the highest
level of personal  service.  Electronic  banking and additional  information are
available at www.OmniAmerican.com.

This release contains certain "forward looking statements" within the meaning of
the Private Securities Litigation Reform Act of 1995. Forward-looking statements
may be identified by the use of such words as "believe," "expect," "anticipate,"
"should," "planned,"  "estimated," and "potential."  Forward-looking  statements
are  subject to various  factors  which  could  cause  actual  results to differ
materially from these estimates.  These factors include, but are not limited to,
general economic and market conditions,  legislative and regulatory  conditions,
changes in interest rates that adversely  affect  OmniAmerican  Bank's  interest
rate spread,  changes in deposit  flows,  loan demand or real estate  values and
other economic, governmental,  competitive, regulatory and technological factors
that may affect OmniAmerican Bank's operations.

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