Oct 22 (Reuters) - Farmers National Banc Corp ( FMNB ):

* FARMERS NATIONAL BANC CORP. ( FMNB ) AND MIDDLEFIELD BANC CORP. ( MBCN )

ANNOUNCE

DEFINITIVE MERGER AGREEMENT

* FARMERS NATIONAL BANC CORP ( FMNB ) - MIDDLEFIELD SHAREHOLDERS TO

RECEIVE

2.6 FARMERS SHARES PER SHARE

* FARMERS NATIONAL BANC CORP ( FMNB ) - DEAL VALUED AT $299 MILLION,

OR

$36.17 PER MIDDLEFIELD SHARE

* FARMERS NATIONAL BANC CORP ( FMNB ) - TO HAVE $7.4 BILLION IN

ASSETS AND

83 BRANCHES POST-MERGER

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