MB Financial Completes the Sale of Union Bank and Announces Expansion of Stock Repurchase Program

Business Wire, Nov 29, 2007

CHICAGO -- MB Financial, Inc. (NASDAQ: MBFI) announced today that it has completed the sale of Union Bank, N.A. based in Oklahoma City to privately-held Olney Bancshares of Texas, Inc.

The completion of this transaction allows MB Financial to concentrate its resources on growth and expansion in the Chicago metropolitan market where it operates 68 offices under the name MB Financial Bank, N.A.

In addition, MB Financial announced its intention today to expand its existing stock repurchase program from 2,000,000 to 3,000,000 shares. These shares will be purchased in the open market or in privately negotiated transactions from time to time over a twelve-month period depending upon market conditions. A portion of the proceeds generated from the sale of Union Bank will be used to fund this program. To date under this program, the Company has repurchased 1,928,270 of its outstanding shares.

MB Financial, Inc., a Chicago-based financial holding company, is the parent of MB Financial Bank, N.A. MB Financial Bank is a locally operated financial institution, which has been delivering competitive personalized service for more than 95 years to privately-owned, middle-market companies as well as to individuals who live and work in the communities MB serves. More information about the company can be found at www.mbfinancial.com.

This news release may contain forward-looking statements that involve risk and uncertainties, with respect to the results of operations and other uncertainties that may not be known or anticipated by the company. While management of the company uses its best efforts to be accurate in making forward-looking statements, any such statements are subject to risks and uncertainties that could cause the company's actual results to vary materially from the future results indicated in such forward-looking statements.