First Interstate BancSystem (FIBK) 8-K Results of Operations and Financial Condition

Exhibit 99

Condensed Consolidated Statements of Income Three Months Ended Six Months Ended June 30, June 30, (Unaudited) 2009 2008 2009 2008 (In thousands, except per share data) Total interest income $ 81,148 $ 88,068 $ 163,031 $ 179,177 Total interest expense 21,958 29,697 44,778 64,003 Net interest income 59,190 58,371 118,253 115,174 Provision for loan losses 11,700 5,321 21,300 7,684 Net interest income after provision for loan losses 47,490 53,050 96,953 107,490 Noninterest income 26,618 25,225 52,561 51,594 Noninterest expense 54,088 49,661 104,263 102,816 Income before taxes 20,020 28,614 45,251 56,268 Income taxes 6,684 9,988 15,227 19,566 Net income 13,336 18,626 30,024 36,702 Less: preferred stock dividends 853 853 1,697 1,622 Net income to common stockholders $ 12,483 $ 17,773 $ 28,327 $ 35,080 DATA PER COMMON SHARE: Diluted EPS $ 1.57 $ 2.22 $ 3.56 $ 4.36 Dividends 0.45 0.65 1.10 1.30 Book value to common stockholders 64.39 57.71 Tangible book value to common stockholders 36.77 28.96 Appraised value 61.00 * 84.75 ** * Based on the latest independent appraised minority share valuation as of March 31, 2009, effective for transactions on or after May 15, 2009. ** Based on the independent appraised minority share valuation as of March 31, 2008, effective for transactions on or after May 15, 2008. Selected Ratios Three Months Ended Six Months Ended June 30, June 30, (Unaudited) 2009 2008 2009 2008 PERFORMANCE Return on average common equity 10.01% 15.66% 11.53% 15.74% Return on average assets 0.80% 1.19% 0.91% 1.19% Net interest margin, FTE 4.04% 4.27% 4.08% 4.28% Efficiency ratio 63.03% 59.41% 61.04% 61.65% CREDIT QUALITY (Period End) Annualized provision for loan losses to loans 0.91% 0.36% Annualized net charge offs to average loans 0.44% 0.09% Allowance for loan losses to total loans 2.11% 1.59% Allowance for loan losses to non-accruing loans 81.66% 102.18% Non-performing assets to total loans & other real estate owned 3.56% 2.08% CAPITAL ADEQUACY & LIQUIDITY Total risk-based capital ratio 11.93% 10.14% Tier 1 risk-based capital ratio 10.01% 8.20% Leverage capital ratio 8.06% 6.91% Loans to deposit ratio at period end 84.44% 93.59% Condensed Consolidated Balance Sheets June 30, (Unaudited) 2009 2008 (In thousands) ASSETS Cash and due from banks $ 223,192 $ 213,855 Federal funds sold 327,019 49,101 Interest bearing deposits 1,696 1,510 Investment securities 1,055,592 1,032,942 Loans 4,665,550 4,570,655 Less: allowance for loan losses 98,395 72,650 Net loans 4,567,155 4,498,005 Goodwill 183,673 187,297 Premises & equipment, net 189,349 168,511 Company owned life insurance 70,223 68,261 Accrued interest receivable 38,272 42,231 Mortgage servicing rights 20,565 23,626 Core deposit intangible assets 11,611 13,963 Other real estate owned 31,789 2,705 Other assets 56,782 61,957 Total Assets $ 6,776,918 $ 6,363,964 LIABILITIES AND STOCKHOLDERS' EQUITY Deposits $ 5,525,315 $ 4,883,489 Federal funds purchased -- 108,410 Securities sold under repurchase agreements 368,442 472,371 Accrued interest payable 22,694 21,898 Accounts payable & accrued expenses 44,857 32,859 Other borrowed funds 58,383 130,288 Long -- term debt 79,644 88,845 Subordinated debentures 123,715 123,715 Total Liabilities 6,223,050 5,861,875 Stockholders' equity 553,868 502,089 Total Liabilities and Stockholders' Equity $ 6,776,918 $ 6,363,964

To our shareholders, Net Income to common shareholders of First Interstate BancSystem for the second quarter of 2009, is down from last quarter and the second quarter of 2008, reflecting the continued economic pressures in our market areas. In spite of the national and local economic head- winds and rapidly changing regulatory challenges, we continue to perform well. We are pleased to report net income to common shareholders for second quarter 2009 of $12,483,000, or $1.57 per diluted share, as compared to $17,773,000, or $2.22 per diluted share, for second quarter 2008. Return on average common equity was 10.01% in second quarter 2009 compared to 15.66% in second quarter 2008, and return on average assets was .80% versus 1.19%. Credit quality continued to deteriorate as non-performing assets climbed to $167,273,000 compared to $122,300,000 on March 31, 2009 and $95,108,000 on June 30, 2008. We have been diligent in our efforts to increase our allowance for loan losses over this period of time as evidenced by provisions of $11,700,000 this past quarter and $46,972,000 over the past four quarters. The allowance for loan losses has increased from 1.59% of total loans on June 30, 2008 to 2.11% on June 30, 2009. Net charge-offs have increased to .44% of average loans annualized during the first six months of 2009 from .09% the first six months of 2008. Unemployment levels in our markets continue to increase; therefore, we expect managing credit quality will be a strategic focus and challenge in the near term as non-performing assets are likely to rise. We are fortunate to have a strong residential mortgage origination team that has taken advantage of the recent low interest rates. Revenue from originating residential mortgage loans increased 207% to $20,592,000 during the first six months of this year compared to $6,702,000 during the same period in 2008. We have historically retained the servicing of most of the residential mortgages we originate. During second quarter, we recorded a $4,418,000 reversal of impairment expense as residential interest rates increased during the quarter. During the first six months of 2009, we've recorded reversals of impairment have been recorded; therefore, we expect these impairment reversals to largely end. Of course, should residential interest rates decline significantly again, we could be subject to a charge to earnings with additional impairment expense. Bank failures on the national level have depleted the FDIC insurance fund and caused the FDIC to levy a special assessment of $3,110,000 on us. Combined with the increased premiums from last year, FDIC expense totaled $7,364,000 the first six months of this year compared to only $909,000 the first six months of 2008. This significant level of expense is likely to continue into the future until the FDIC insurance fund has been replenished. Net interest margin declined to 4.04% in the second quarter of 2009, as compared to 4.12% in the first quarter of 2009 and 4.27% in the second quarter of 2008. There are many factors contributing to this decline including: 1. Liquidity in our banks, as measured by federal funds sold, increased by $277,918,000 from June 30, 2008 to June 30, 2009. This liquidity has been driven by a strong demand for deposit products coupled with a diminished demand for loans. Diminished loan demand typically accompanies recessionary economies. Our loan to deposit ratio currently stands at 84%, down from 94% just a year ago. 2. As non-performing loans continue to grow, our interest income is adversely affected. 3. Our customers are saving more than in the past and their savings are centered more in higher interest bearing deposits. Our focus on capital has included retaining our profitability coupled with limiting dividends and stock redemptions as well as managing to lesser levels of growth. Total risk based capital has improved to Financial Highlights Three Months ended June 30, (Unaudited) 2009 2008 % Change (In thousands, except per share data) OPERATING RESULTS Net income $ 13,336 $ 18,626 -28.4% Net income to common stockholders 12,483 17,773 -29.8% Diluted earnings per share 1.57 2.22 -29.3% Dividends per share 0.45 0.65 -30.8% PERIOD END BALANCES Assets 6,776,918 6,363,964 6.5% Loans 4,665,550 4,570,655 2.1% Investment securities 1,055,592 1,032,942 2.2% Deposits 5,525,315 4,883,489 13.1% Stockholders' equity 553,868 502,089 10.3% Common shares outstanding 7,825 7,834 0.1% QUARTERLY AVERAGES Assets 6,685,978 6,292,396 6.3% Loans 4,693,750 4,458,678 5.3% Investment securities 1,030,885 1,108,133 -7.0% Deposits 5,419,571 4,833,976 12.1% Stockholders' equity 550,149 506,319 -8.7% Common shares outstanding 7,847 7,846 0.0% 11.93%, just short of our 12% goal. Liquidity has improved considerably with deposits growing 13% over the last twelve months compared to loan growth of only 2%. Although earnings are reduced, we're performing well above similar sized banking companies. US Banker Magazine, in its August 2009 issue, named First Interstate as the sixth best bank on its Top 100 list of mid-tier banks and thrifts (assets of $2 billion to $10 billion) ranked by a three-year average Most return on equity. In addition, we are the #1 privately held bank on this Top 100 list. We remain focused on managing targeted expenses and will continue to seek opportunities for further expense reductions that do not negatively impact our franchise value or our customer service. We're on track to successfully complete the integration of the First Western Banks into First Interstate during third quarter, which will include changing their name to First Interstate Bank. Despite challenging economic times, we continue to produce solid financial results, a testament to our commitment to the fundamentals of responsible, sound banking. Although recessionary factors have contributed to elevated levels of non-performing loans, we have maintained our philosophy of providing ample reserves for potential loan losses. We remain well capitalized by all regulatory standards and will continue to focus on balanced internal growth and control of targeted non-interest expenses. We thank our dedicated and talented team of employees and directors for our continued success. Lyle R. Knight Terrill R. Moore President Executive Vice President Chief Executive Officer Chief Financial Officer