EXHIBIT (99) OPINION OF OLIVE LLP [LETTERHEAD OF OLIVE LLP] To the Shareholders and Board of Directors Indiana United Bancorp Greensburg, Indiana We have audited the consolidated balance sheet of Indiana United Bancorp and subsidiaries as of December 31, 1998, and the related consolidated statements of income, shareholder's equity and cash flows for the year ended December 31, 1998. These consolidated financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. The consolidated financial statements as of December 31,1998, and for the year then ended, have been restated to reflect the pooling of interests with First Affiliated Bancorp, Inc. as described in Note 2 to the consolidated financial statements. We did not audit the 1998 financial statements of First Affiliated Bancorp, Inc., which statements reflect total assets of $129,199 as of December 31, 1998 and total revenues of $9,981 for the year then ended. Those statements were audited by other auditors whose report has been furnished to us, and our opinion, insofar as it relates to the amounts included for First Affiliated Bancorp, Inc. as of December 31, 1998, and for the year then ended, is based solely on the report of the other auditors. We conducted our audit in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. In our opinion, based on our audit and the report of other auditors, the consolidated financial statements referred to in the first paragraph present fairly, in all material respects, the consolidated financial position of Indiana United Bancorp and subsidiaries as of December 31, 1998, and the results of their operations and their cash flows for the year ended December 31, 1998, in conformity with generally accepted accounting principles. Olive LLP Indianapolis, Indiana January 29, 1999