1 EXHIBIT 12 RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDEND REQUIREMENTS The following table sets forth the ratio of earnings to fixed charges and preferred stock dividend requirements for the periods indicated: Five Months Ended Years Ended July 31, December 31, - -------------------------------------------------------------------------- 1995 1996 1997 1998 1998 ---- ---- ---- ---- ---- 8.1 4.9 3.5 3.0 2.4 For purposes of computing these ratios, earnings have been calculated by adding fixed charges (excluding capitalized interest and preferred stock dividends) to income before extraordinary items. Fixed charges consist of interest costs, whether expensed or capitalized, preferred stock dividend requirements, the interest component of rental expense, if any, and amortization of debt discounts and issue costs, whether expensed or capitalized. CALCULATION OF COMBINED RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDEND REQUIREMENTS FIVE MONTHS ENDED DECEMBER 31, 1998 (DOLLAR AMOUNTS IN THOUSANDS) EARNINGS: Net income $ 55,805 Interest expense (including amortization of debt discount and issuing costs) 27,168 Other adjustments 477 -------- $ 83,450 ======== FIXED CHARGES: Interest expense (including amortization of debt discount and issuing costs) $ 27,168 Capitalized interest 159 Preferred stock dividends 6,914 Other adjustments 136 -------- $ 34,377 ======== RATIO OF EARNINGS TO FIXED CHARGES 2.43