EXHIBIT 12
Atmos Energy Corporation
Computation of Earnings to Fixed Charges
December 31, 2001
<Table>
<Caption>
Three Months Ended
December 31
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2001 2000
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Income from continuing operations before provision for
income taxes per statement of income $ 32,855 $ 36,348
Add:
Portion of rents representative of the interest factor 902 548
Interest on debt & amortization of debt expense 16,215 12,246
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Income as adjusted $ 49,972 $ 49,142
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Fixed charges:
Interest on debt & amortization of debt expense (1) $ 16,215 $ 12,246
Capitalized interest (2) 372 --
Rents 2,706 1,644
Portion of rents representative of the interest factor (3) 902 548
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Fixed charges (1)+(2)+(3) $ 17,489 $ 12,794
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Ratio of earnings to fixed charges 2.86 3.84
</Table>