MB Financial, Inc. Announces Schedule for Fourth Quarter 2006 Earnings Release and Conference Call.

CHICAGO -- MB Financial, Inc., (Nasdaq: MBFI) today announced it will release its fourth quarter 2006 earnings on Tuesday, January 23, 2007 at 8:00 a.m. (Central Standard Time). A conference call will be held the same day at 11:00 a.m. (Central Standard Time). Individuals interested in listening should call 1.866.761.0749 and enter Passcode #59374412. A simultaneous audio-only webcast of the conference call may be accessed via the Company's web site at www.mbfinancial.com under Investor Relations.

Following the live webcast, an archived replay of the call will be available on the Company's website beginning approximately two hours after the call ends. The replay will remain available through January 30, 2007.

MBFI is the $8 billion holding company for MB Financial Bank, N.A. and Union Bank N.A. (Oklahoma). 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 Chicago metropolitan area.

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.