Exhibit 99(c) UNAUDITED PRO FORMA COMBINED CONDENSED CONSOLIDATED FINANCIAL INFORMATION The following unaudited Pro Forma Condensed Combined Statement of Financial Condition and Pro Forma Condensed Combined Statements of Operations are based upon the historical results of Blackhawk Bancorp, Inc. for the year ended December 31, 2002, and at and for the six months ended June 30, 2003, and of DunC Corp. for the year ended December 31, 2002, and at and for the six months ended June 30, 2003, giving effect to the acquisition using the purchase method of accounting. Pro forma adjustments, and the assumptions on which they are based, are described below and in the accompanying footnotes to the pro forma condensed combined financial statements. These financial statements should be read in conjunction with the historical financial statements of Blackhawk Bancorp, Inc. and DunC Corp. The pro forma condensed combined financial statements are not necessarily indicative of the results that actually would have occurred had the companies constituted a single entity during the respective periods, nor are they indicative of future results of operations. The pro forma financial data gives effect to the fact that the acquisition will be accounted for as a purchase in accordance with accounting principals generally accepted in the United States of America. Under the purchase method of accounting, the tangible and identified intangible assets and liabilities of DunC corp. will be recorded at estimated fair values at the time the acquisition is consummated. The excess of the purchase price over the net tangible and identifiable intangible assets will be recorded as goodwill. The adjustments necessary to record tangible and identifiable intangible assets and liabilities at their fair value will be amortized to income and expense over the estimated remaining lives of the related assets and liabilities. Goodwill will not be amortized. Instead, goodwill will be reviewed for impairment at least annually. If the carrying amount of goodwill exceeds its estimated fair value, an impairment loss will be recognized in an amount equal to that excess. The unaudited pro forma combined condensed consolidated financial statements combine the historical condensed consolidated financial statements of Blackhawk Bancorp, Inc. and DunC Corp. giving effect to the acquisition as if it had been effective on September 30, 2003, with respect to the unaudited pro forma combined condensed consolidated balance sheet, and as of the beginning of the period presented with respect to the unaudited pro forma combined condensed consolidated statements of earnings. The total purchase price is $7,222,941 in cash and is based on the merger consideration of $1,523.18 per share for each of the 4,742 shares of DunC common stock outstanding. The pro forma condensed combined financial statements also do not take into account the following items, which will impact the financial condition, results of operations and reported per share amounts of the merged entity. o Earnings from June 30, 2003 to the closing date of the transaction (September 30, 2003). o Estimated expense savings to be derived from, among other things, the termination of certain DunC Corp. employees, elimination of duplicative backroom operations and conversion to Blackhawk Bancorp, Inc.' s data processing system. o Expected revenue enhancements from marketing Blackhawk Bancorp, Inc.' s services to DunC Corp. customers. Notes to Unaudited Pro forma Combined Condensed Consolidated Financial Information Note 1 Basis of Presentation of DunC Corp. Acquisition The unaudited pro forma combined condensed consolidated financial information has been prepared assuming the acquisitions will be accounted for under the purchase method of accounting. The unaudited pro forma combined condensed consolidated statements of earnings for the six months ended June 30, 2003 and for the year ended December 31, 2002 are presented as if the DunC Corp.(" DunC") acquisition occurred at the beginning of the period. The unaudited pro forma combined condensed consolidated balance sheet as of June 30, 2003 is presented as if the DunC acquisition occurred as of that date. This information is not intended to reflect the actual results that would have been achieved had the DunC acquisition actually occurred on those dates. Note 2 Purchase Price and Funding of DunC Blackhawk Bancorp, Inc. ("the Corporation") acquired DunC pursuant to an Agreement and Plan of Merger dated as of March 17, 2003 (the "Merger Agreement"), between the Corporation, DunC Merger Corporation ("Merger Corp"), a wholly owned subsidiary of the Corporation, and DunC through a series of mergers. Pursuant to the Merger Agreement, Merger Corp was merged with and into DunC at the close of business on the Effective Date, and DunC became a wholly owned subsidiary of the Corporation. The merger consideration was cash in the aggregate amount of $7,222,941, which will be paid to former DunC shareholders. The price paid by the Corporation for the DunC common stock was arrived at through arms-length negotiations. The terms of the merger of Merger Corp with and into DunC are described more fully in the Merger Agreement filed as Exhibit 2.1 to the Corporation's Form 10- QSB for the quarterly period ended March 31, 2003, which is incorporated herein by reference. The description of the transaction set forth above is qualified in its entirety by the terms set forth in the Merger Agreement. Immediately following the merger of Merger Corp into DunC, DunC merged with and into the Corporation, and First Bank merged with and into Blackhawk State Bank, a wholly owned subsidiary of the Corporation. As a result of these mergers the Corporation and Blackhawk State Bank were the surviving entities, and DunC and First Bank ceased to exist. The merger consideration paid to the former shareholders of DunC will be funded through a term loan with U.S. Bank National Association, Milwaukee, Wisconsin. The term loan for $7.5 million was entered into in the ordinary course of business and on terms commensurate with prevailing market conditions on September 26, 2003. The term loan matures on September 26, 2008. A copy of the term loan agreement was filed as an exhibit on the Corporation's Current Report on Form 8-K dated September 30, 2003 and is incorporated herein by reference. The term loan agreement allows the Corporation to select the per annum interest rate. The unaudited pro forma financial statements reflect an initial interest rate of 3 month LIBOR at 1.2% plus 2% totaling 3.2%. The annual interest expense on the term loan would change by $9,375 for each 1/8% change in the 3 month LIBOR rate. Note 3 Allocation of Purchase Price of DunC Under purchase accounting, DunC's assets and liabilities and any identifiable intangible assets are required to be adjusted to their estimated fair values. The estimated fair values have been determined by the Corporation based upon available information. The estimated fair values assigned are subject to review as part of the Corporation's year end financial statement audit. The following are the pro forma adjustments made to record the transaction and to adjust DunC's assets and liabilities to their estimated fair values at June 30, 2003. Cash purchase price of DunC (in thousands) $7,223 Debt of DunC assumed by the Corporation 888 Acquisition costs incurred by the Corporation 346 ------ Total DunC acquisition cost $8,457 ------ ------ Historical net assets of DunC $5,846 Accrual of DunC severance costs (20) Fair market value adjustments as of June 30, 2003: Securities 510 Loans 360 Premises and equipment 401 Goodwill 1,116 Core deposit intangible 1,454 Certificates of deposit (299) FHLBC advances (131) Deferred taxes on purchase accounting adjustments (780) ------ $8,457 ------ ------ All of the other asset and liability categories are either variable rate or short-term in nature and fair market value adjustments were considered to be immaterial to the financial presentation. In accordance with Statement of Financial Accounting Standards No 141, "Business Combinations" and No. 142, "Goodwill and Other Intangible Assets," goodwill and intangible assets with indefinite lives are not amortized for acquisitions initiated after June 30, 2001; therefore, no goodwill amortization is presented in the pro forma financial statements. However, the core deposit intangible will be amortized over its estimated useful life and recorded as a charge to operations. Note 4 Merger Costs of DunC The Corporation incurred merger costs of $346,000 consisting mostly of fees for professional services related to investment banking, legal and accounting. Note 5 Amortization of Intangibles The following table reflects the impact on income from the amortization of purchase accounting adjustments for each of the next five years. Year 1 Year 2 Year 3 Year 4 Year 5 ------ ------ ------ ------ ------ Securities $200 $120 $ 77 $ 45 $ 36 Loans 163 157 40 Premises and equipment 4 4 4 4 4 Goodwill Core deposit intangible 139 139 139 139 139 Certificates of deposit (277) (16) (4) (2) - FHLBC advances (61) (35) (25) (10) - ---- ---- ---- ---- ---- Subtotal 168 369 231 176 179 Income taxes (benefit) (57) (125) (79) (60) (61) ---- ---- ---- ---- ---- Total $111 $244 $152 $116 $118 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- The following assumptions were used for purposes of determining the pro forma effect of the DunC acquisition on the statement of income. In accordance with Financial Accounting Standards No. 142, Goodwill and Other Intangible Assets, goodwill will not be amortized, but will be reviewed for impairment at least annually. All amortization/depreciation is under the straight line method over the respective average life of the associated asset(s). Remaining Description Term/Useful Life - ----------- ---------------- Securities 3-313 Months Loans 6-44 Months Premises and equipment 18-40 Years Core deposit intangible 87-144 Months Certificates of deposit 4-44 Months FHLBC advances 2-41 Months UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF FINANCIAL CONDITION June 30, 2003 (in thousands) Blackhawk DunC Pro Forma Pro Forma Bancorp, Inc. Corp. Adjustments Note Combined ------------- ----- ----------- ---- -------- ASSETS Cash and due from banks $ 12,166 $ 5,172 $ 7,500 2 (7,223) 3 $ 17,615 Fed funds sold and securities purchased under agreements to resell - 3,613 3,613 Interest-bearing deposits in banks 1,922 991 2,913 Available-for-sale securites 102,013 8,884 408 3 111,305 Held-to-maturity securites 19,399 2,336 102 3 21,837 Loans 183,539 53,862 360 3 237,761 Office buildings and equipment, net 6,511 2,725 401 3 9,637 Goodwill 3,112 1,116 3 4,228 Other identifiable intangible assets 1,276 1,454 3 2,730 Other assets 13,595 1,273 (346) 3 14,522 -------- ------- ------- -------- TOTAL ASSETS $343,533 $78,856 $ 3,772 $426,161 -------- ------- ------- -------- -------- ------- ------- -------- LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities Deposits: Noninterest-bearing $33,120 $16,293 $ 49,413 Interest-bearing 215,772 51,927 299 3 267,998 -------- ------- ------- -------- Total deposits 248,892 68,220 299 317,411 Short-term borrowings 11,990 865 12,855 Long-term borrowings 46,600 4,000 7,500 2 131 3 58,231 Company Obligated Mandatorily Redeemable Preferred Securities of subsidiary trust holding solely subordinated debentures 7,000 7,000 Other liabilities 2,909 813 780 3 20 3 4,522 -------- ------- ------- -------- TOTAL LIABILITIES 317,391 73,898 8,730 400,019 -------- ------- ------- -------- Stockholders' equity Preferred stock - Common stock 25 3,034 (3,034) 3 25 Surplus 8,773 8,773 Retained earnings 16,062 1,924 (1,924) 3 16,062 Accumulated other comprehensive income 1,282 - 1,282 -------- ------- ------- -------- TOTAL STOCKHOLDERS' EQUITY 26,142 4,958 (4,958) 26,142 -------- ------- ------- -------- TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $343,533 $78,856 $ 3,772 $426,161 -------- ------- ------- -------- -------- ------- ------- -------- UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS For the Year Ended December 31, 2002 (in thousands) Blackhawk DunC Pro Forma Pro Forma Bancorp, Inc. Corp. Adjustments Combined ------------- ----- ----------- -------- Interest Income: Interest and fees on loans $14,659 $3,853 $(163) $18,349 Interest and dividends on securities: Taxable 3,497 624 (161) 3,960 Nontaxable 853 90 (39) 904 Interest on fed funds sold and securities purchased under agreements to resell 133 21 154 Interest on interest-bearing deposits in banks 46 14 60 ------- ------ ----- ------- TOTAL INTEREST INCOME 19,188 4,602 (363) 23,427 ------- ------ ----- ------- Interest Expenses: Interest on deposits 5,926 1,220 (277) 6,869 Interest on short-term borrowings 292 2 294 Interest on long-term borrowings 2,152 231 240 (61) 2,562 Interest on Company Obligated Mandatorily Redeemable Preferred Securities 13 13 ------- ------ ----- ------- TOTAL INTEREST EXPENSE 8,383 1,453 (98) 9,738 ------- ------ ----- ------- NET INTEREST INCOME 10,805 3,149 (265) 13,689 Provision for loan losses 1,004 628 1,632 ------- ------ ----- ------- NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES 9,801 2,521 (265) 12,057 ------- ------ ----- ------- Noninterest Income: Service charges on deposit accounts 1,583 688 2,271 Securities gains, net 321 54 375 Gain on sale of loans 454 1,568 2,022 Other 648 187 835 ------- ------ ----- ------- TOTAL NONINTEREST INCOME 3,006 2,497 - 5,503 ------- ------ ----- ------- Noninterest expenses: Salaries and employee benefits 5,388 2,373 7,761 Occupancy 735 316 4 1,055 Equipment 927 147 1,074 Data processing services 764 366 1,130 Advertising and marketing 349 92 441 Amortization of intangibles 310 92 139 541 Professional fees 565 80 645 Office supplies 258 105 363 Telephone 307 67 374 Write-off of receivable 271 - 271 Other 1,397 570 1,967 ------- ------ ----- ------- TOTAL NONINTEREST EXPENSE 11,271 4,208 143 15,622 ------- ------ ----- ------- INCOME BEFORE INCOME TAXES 1,536 810 (408) 1,938 Income Taxes 300 236 (139) 397 ------- ------ ----- ------- NET INCOME $ 1,236 $ 574 $(269) $1,541 ------- ------ ----- ------- ------- ------ ----- ------- Basic earnings per share $0.50 $0.62 ------- ------- ------- ------- Diluted earnings per share $0.50 $0.62 ------- ------- ------- ------- UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS For the Six Months Ended June 30, 2003 (in thousands) Blackhawk DunC Pro Forma Pro Forma Bancorp, Inc. Corp. Adjustments Combined ------------- ----- ----------- -------- Interest Income: Interest and fees on loans $6,267 $2,162 $ (78) $8,351 Interest and dividends on securities: Taxable 1,857 241 (48) 2,050 Nontaxable 535 51 (12) 574 Interest on fed funds sold and securities purchased under agreements to resell 49 10 59 Interest on interest-bearing deposits in banks 18 25 43 ------ ------ ----- ------ TOTAL INTEREST INCOME 8,726 2,489 (138) 11,077 ------ ------ ----- ------ Interest Expenses: Interest on deposits 2,496 475 (8) 2,963 Interest on short-term borrowings 76 3 79 Interest on long-term borrowings 1,035 102 120 (17) 1,240 Interest on Company Obligated Mandatorily Redeemable Preferred Securities 163 163 ------ ------ ----- ------ TOTAL INTEREST EXPENSE 3,770 580 95 4,445 ------ ------ ----- ------ NET INTEREST INCOME 4,956 1,909 (233) 6,632 Provision for loan losses 365 130 495 ------ ------ ----- ------ NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES 4,591 1,779 (233) 6,137 ------ ------ ----- ------ Noninterest Income: Service charges on deposit accounts 700 218 918 Securities gains, net 301 301 Gain on sale of loans 424 866 1,290 Other 492 174 666 ------ ------ ----- ------ TOTAL NONINTEREST INCOME 1,917 1,258 - 3,175 ------ ------ ----- ------ Noninterest expenses: Salaries and employee benefits 2,818 1,561 4,379 Occupancy 369 171 2 542 Equipment 461 105 566 Data processing services 399 167 566 Advertising and marketing 207 45 252 Amortization of intangibles 159 32 70 261 Professional fees 302 155 457 Office supplies 117 30 147 Telephone 153 34 187 Write-off of receivable 212 - 212 Other 523 322 845 ------ ------ ----- ------ TOTAL NONINTEREST EXPENSE 5,720 2,622 72 8,414 ------ ------ ----- ------ INCOME BEFORE INCOME TAXES 788 415 (305) 898 Income Taxes 61 110 (103) 68 ------ ------ ----- ------ NET INCOME $ 727 $ 305 $(202) $ 830 ------ ------ ----- ------ ------ ------ ----- ------ Basic earnings per share $0.29 $0.33 ------ ------ ------ ------ Diluted earnings per share $0.29 $0.33 ------ ------ ------ ------