Exhibit 99 ISB FINANCIAL CORPORATION'S SUBSIDIARY, IBERIABANK, TO ACQUIRE 17 BRANCH OFFICES FOR IMMEDIATE RELEASE Contact: Larrey G. Mouton JUNE 5, 1998 President and Chief Executive Officer (318) 365-2361 New Iberia, Louisiana -- IBERIABANK, the wholly owned commercial bank subsidiary of ISB Financial Corporation (the "Company") (NASDAQ/NMS:ISBF), today announced that it has entered into a definitive agreement to acquire seventeen full-service branch offices with aggregate deposits of approximately $478 million as of December 31, 1997 from two subsidiary banks of First Commerce Corporation ("First Commerce"). The sale of the branch offices is being undertaken by First Commerce to facilitate its acquisition by BancOne Corporation, Columbus, Ohio. Seven of the offices with aggregate deposits of approximately $207 million are in the Lafayette market area and are currently operated as offices of The First National Bank of Lafayette ("First National"), and ten of the offices with aggregate deposits of approximately $271 million are in the Monroe market area and are currently operating as offices of Central Bank, Monroe, Louisiana. A list of the branch offices is provided below. Central Bank First National Bank of Lafayette - ------------------------------------------- -------------------------------------------------- Branch Office Address Branch Office Address - -------------- ------------------------- ------------- ----------------------------------- Northeast 3500 DeSiard Street, Monroe Oil Center 463 Heymann Blvd., Lafayette Claiborne 5329 Cypress St., West Monroe Northgate 1820 Moss St., Lafayette South Central 1900 Jackson St., Monroe Congress 4010 W. Congress St., Lafayette Lakeshore 8019 DeSiard St., Monroe Caffery 3710 Ambassador Caffery Parkway, Lafayette Central Center One Stella Mill St., West Monroe Scott 200 Westgate Road, Scott Super 1-Monroe 2810 Louisville Ave, Monroe Kaliste Saloom 420 Kaliste Saloom, Lafayette Super 1-West 2907 Cypress St., West Monroe Carencro 805 Bernard Road, Carencro Monroe Brookshire's 2348 Sterlington Road, Monroe Ruston Main Office 305 S. Vienna, Ruston North Trenton 1327 N. Trenton, Ruston ISB Financial Corporation's Subsidiary, IBERIABANK, To Acquire 17 Branch Offices June 5, 1998 Page 2 of 3 The 17 branch offices include approximately 48,000 customers or deposit accounts (including approximately $66 million in demand deposit accounts). IBERIABANK will pay a weighted average deposit premium of approximately 6.45% based upon deposits assumed at the closing date. In addition to the branch offices and deposits, IBERIABANK will acquire approximately 7,800 loans with an aggregate balance of $129 million for a purchase price equal to the adjusted book value of such loans. As of December 31, 1997, the weighted average cost of the to be acquired deposits was 3.62% and the weighted average yield on the to be acquired loans was 8.74%. The transaction is expected to be completed in September 1998 upon receipt of regulatory approval. The business day following completion, the branch offices will open for business fully converted to IBERIABANK offices and the former First National and Central Bank employees will continue to staff the offices as IBERIABANK employees. Larrey G. Mouton, President and Chief Executive Officer of IBERIABANK, said "We are very excited at the opportunity to expand our customer base and we look forward to welcoming these new customers and employees to IBERIABANK in September." Mr. Mouton also stated, "This branch office acquisition will significantly advance our strategy to expand our presence in Louisiana." Upon consummation of the transaction, IBERIABANK's branch office network will increase to 44 offices in 10 parishes in Louisiana. Based on deposits, it is expected that IBERIABANK will rank second in market share in both the Lafayette and Monroe market areas after closing of the transaction. Upon consummation of the acquisition of the branch offices, the Company anticipates that it will have approximately $1.4 billion in assets, $1.2 billion in deposits and $805 million in total loans. The Company expects the transaction to be accretive to income within the first year. Certain condensed pro forma information is provided below. ISB Financial Corporation is the holding company for IBERIABANK. IBERIABANK currently operates 19 full service offices located in south central Louisiana and eight full service offices located in the Greater New Orleans area. The deposits of IBERIABANK are insured by the Federal Deposit Insurance Corporation to the full extent provided for by law and regulation. ISB Financial Corporation's Subsidiary, IBERIABANK, To Acquire 17 Branch Offices June 5, 1998 Page 3 of 3 PRO FORMA CONDENSED, UNAUDITED BALANCE SHEET INFORMATION OF ISB FINANCIAL CORPORATION REFLECTING PROPOSED ACQUISITION OF 17 BRANCH OFFICES IN LAFAYETTE AND MONROE, LOUISIANA(1) ISB Financial Lafayette/Monroe Pro Forma Corporation Branch Offices Combined ----------- -------------- -------- Balance % Balance % Balance % ------- --- ------- --- ------- --- (Dollars in Thousands) Cash and Securities $210,046 22.6% $305,005 63.8% $515,051 36.6% Loans 676,074 72.9 128,974 27.0 805,048 57.3 Premises and Equipment 19,380 2.1 5,761 1.2 25,141 1.8 Goodwill and acquisition intangibles 15,867 1.7 30,839 6.5 46,706 3.3 Other Assets 6,028 0.7 7,539 1.6 13,567 0.9 -------- ------ -------- ------ ---------- ------ Total Assets $927,395 100.0% $478,118 100.0% $1,405,513 100.0% -------- ------ -------- ------ ---------- ------ -------- ------ -------- ------ ---------- ------ Deposits $754,185 81.3% $478,118 100.0% $1,232,303 87.7% Borrowings 46,373 5.0 --- --- 46,373 3.3 Other Liabilities 8,543 0.9 --- --- 8,543 0.6 Stockholders' equity 118,294 12.8 --- --- 118,294 8.4 -------- ------ -------- ------ ---------- ------ Liabilities and $927,395 100.0% $478,118 100.0% $1,405,513 100.0% -------- ------ -------- ------ ---------- ------ -------- ------ -------- ------ ---------- ------ Stockholders' equity (1) The Pro Forma Information is based upon historical balance sheet information of ISB Financial Corporation as of April 30, 1998 and historical information for the seventeen branch offices as of December 31, 1997. The actual amount of deposits assumed and assets acquired will be determined as of the closing date and may differ significantly from those set forth above. CERTAIN INFORMATION IN THIS PRESS RELEASE MAY CONSTITUTE FORWARD-LOOKING INFORMATION THAT INVOLVES RISKS AND UNCERTAINTIES THAT COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE ESTIMATED. PERSONS ARE CAUTIONED THAT SUCH FORWARD-LOOKING STATEMENTS ARE NOT GUARANTEES OF FUTURE PERFORMANCE AND ARE SUBJECT TO VARIOUS FACTORS WHICH COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE ESTIMATED. THESE FACTORS INCLUDE THAT THE ACTUAL AMOUNT OF ASSETS TO BE ACQUIRED AND LIABILITIES TO BE ASSUMED BY IBERIABANK WILL BE DETERMINED AS OF THE CLOSING DATE AND MAY DIFFER SIGNIFICANTLY FROM THE INFORMATION PRESENTED HEREIN AND CHANGES IN GENERAL ECONOMIC AND MARKET CONDITIONS AND THE DEVELOPMENT OF AN INTEREST RATE ENVIRONMENT THAT MAY ADVERSELY AFFECT THE FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF THE COMPANY.