Prosperity Bancshares, Inc.�, a Texas corporation (the �Company�), was formed in
1983 as a vehicle to acquire the former Allied Bank in Edna, Texas which was
chartered in 1949 as The First National Bank of Edna and is now known as
Prosperity Bank. The Company is a registered financial holding company that
derives substantially all of its revenues and income from the operation of its
bank subsidiary, Prosperity Bank� (�Prosperity Bank�� or the �Bank�). The Bank
provides a wide array of financial products and services to small and
medium-sized businesses and consumers.