EXHIBIT 12
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
Three Months Ended
June 30 June 30
2000 1999
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(Thousands of Dollars)
Income before income taxes,
extraordinary item and cumulative
effect of accounting changes $37,543 $22,924
Amortization of capitalized interest 612 608
Interest expense 7,471 6,869
Interest portion of rental expense 651 532
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Earnings $46,277 $30,933
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Interest $ 7,910 $ 7,825
Interest portion of rental expense 651 532
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Fixed Charges $ 8,561 $ 8,357
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Ratio of Earnings to Fixed Charges 5.41 3.70
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