OPPENHEIMER U.S. GOVERNMENT TRUST
                         Supplement dated December 15, 2008 to the
                            Prospectus dated December 21, 2007

This supplement amends the Prospectus of Oppenheimer U.S.  Government Trust
(the "Fund") dated December 21, 2007 and is in addition to the supplements dated
July 1, 2008 and April 28, 2008.

The section  "How the Fund is Managed - The Manager - Portfolio  Managers,"
beginning  on page  15,  is  deleted  in its  entirety  and  replaced  with  the
following:

Portfolio Managers. The Fund's portfolio is managed by a team of investment
professionals,  including  Benjamin J. Gord,  Geoffrey  Caan,  Thomas Swaney and
Antulio N. Bomfim, who are primarily  responsible for the day-to-day  management
of the Fund's investments.

     Mr. Gord has been a Vice President and portfolio  manager of the Fund and a
Vice  President of the Manager since April 2002. He is also a portfolio  manager
of other portfolios in the  OppenheimerFunds  complex. Mr. Gord was an Executive
Director and a senior fixed income analyst at Miller,  Anderson  &  Sherrerd
from April 1992 through March 2002.

     Mr. Caan has been a Vice President and portfolio  manager of the Fund and a
Vice President of the Manager since August 2003. He is also a portfolio  manager
of  other  portfolios  in the  OppenheimerFunds  complex.  Mr.  Caan  was a Vice
President of ABN AMRO N.A.,  Inc. from June 2002 through August 2003, and a Vice
President of Zurich Scudder Investments from January 1999 through June 2002.

     Mr. Swaney has been a portfolio manager of the Fund and a Vice President of
the Manager since April 2006. He is also a portfolio manager of other portfolios
in  the  OppenheimerFunds  complex.  Mr.  Swaney  was a  senior  analyst  of the
Manager's  High Grade  Investment  Team from June 2002 to March  2006.  Prior to
joining the Manager in June 2002,  Mr. Swaney was a senior fixed income  analyst
at Miller,  Anderson &  Sherrerd,  a division of Morgan  Stanley  Investment
Management from May 1998 through May 2002.

     Mr. Bomfim has been a Vice President and portfolio  manager of the Fund and
a Vice  President  of the Manager  since  October  2003.  He is also a portfolio
manager of other portfolios in the  OppenheimerFunds  complex.  Mr. Bomfim was a
Senior  Economist at the Board of Governors of the Federal  Reserve  System from
June 1992 to October 2003.

     The Statement of Additional  Information  provides  additional  information
about each  Portfolio  Manager's  compensation,  other  accounts they manage and
their ownership of Fund shares.


December 15, 2008                                                   PS0220.035