EXHIBIT 99.1


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                                  NEWS RELEASE

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     BW Account Number:  1079001
     DATE:           November 23, 2005       11:00 a.m. E.S.T.
     CONTACT:        James L. Saner, Sr., President and CEO
                     MainSource Financial Group, Inc.  812-663-0157



                        Fourth Quarter Dividend Declared
                    MainSource Financial Group - NASDAQ, MSFG

Greensburg,  Indiana (NASDAQ: MSFG) - MainSource Financial Group, Inc. announced
today that its Board of Directors  approved the  declaration of a fourth quarter
common dividend of $.13 per share at its November 22, 2005 meeting. The dividend
is payable on December 15, 2005 to common  shareholders of record as of December
1, 2005.  The dividend  represents  a 4.8%  increase  over the dividend  paid to
shareholders  in the  fourth  quarter  last year.  For the full year 2005,  cash
dividends  have  increased  9.2%  over  the  dividends  paid  in  2004.  This is
MainSource Financial Group's sixty-first consecutive quarterly cash dividend.

MainSource  Financial  Group,  Inc.,  headquartered in Greensburg,  Indiana,  is
listed on the  NASDAQ  National  Market  (under  the  symbol:  "MSFG")  and is a
community-focused,  financial holding company with assets of approximately  $1.6
billion.  The Company operates 54 offices in 23 Indiana counties and six offices
in three  Illinois  counties  through its two banking  subsidiaries,  MainSource
Bank, Greensburg,  Indiana and MainSource Bank of Illinois,  Kankakee, Illinois.
Through its non-banking subsidiaries, MainSource Insurance LLC, MainSource Title
LLC, and MainSource Mortgage LLC, the Company provides various related financial
services through the Company's banking affiliates.

Forward-Looking Statements

Except for historical information contained herein, the discussion in this press
release may include  certain  forward-looking  statements  based upon management
expectations.  Factors  which  could cause  future  results to differ from these
expectations include the following: general economic conditions; legislative and
regulatory initiatives;  monetary and fiscal policies of the federal government;
deposit flows;  the costs of funds;  general market rates of interest;  interest
rates on competing investments;  demand for loan products;  demand for financial
services;  changes in  accounting  policies  or  guidelines;  and changes in the
quality or composition of the Company's loan and investment portfolios.

The forward-looking statements included in the press release relating to certain
matters  involve  risks  and  uncertainties,   including  anticipated  financial
performance,  business  prospects,  and other  similar  matters,  which  reflect
management's best judgment based on factors currently known.  Actual results and
experience  could  differ  materially  from  the  anticipated  results  or other
expectations expressed in the Company's  forward-looking  statements as a result
of a number of factors,  including  but not limited to,  those  discussed in the
press release.

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 MainSource Financial Group, 201 N. Broadway, P.O. Box 87, Greensburg, IN 47240