Exhibit 12.1 AGL Resources Inc. and Subsidiaries Statement Setting Forth Computation of Ratio of Earnings to Fixed Charges (Dollars in millions) ----------------------------------------------------------- 5yr + Q3-2001 ----------------------------------------------------------- Q3-2001 Q3-2000 2000 1999 ------------ ------------- ----------- ----------- Earnings available for fixed charges: Net income $ 84.1 $ 53.7 $ 71.1 $ 74.4 Income tax expense 47.8 30.7 37.2 39.1 Fixed charges - see below 73.5 43.6 57.9 56.8 ------------ ------------- ----------- ----------- Total $ 205.4 $ 128.0 $ 166.2 $ 170.3 ============ ============= =========== =========== Fixed Charges: Interest on long-term debt $ 40.9 $ 35.2 $ 46.7 $ 49.7 Amortization of debt expense 0.3 0.3 0.3 0.3 Other interest 27.7 4.3 6.9 4.0 Interest component of rentals charged to income 4.6 3.8 4.0 2.8 ------------ ------------- ----------- ----------- Total fixed charges $ 73.5 $ 43.6 $ 57.9 $ 56.8 ============ ============= =========== =========== Ratio of earnings to fixed charges 2.79 2.94 2.87 3.00 ============ ============= =========== =========== --------------------------------------- --------------------------------------- 1998 1997 1996 ---------- ----------- ----------- Earnings available for fixed charges: Net income $ 80.6 $ 76.6 $ 75.6 1995 to 1992 are hidden Income tax expense 38.8 46.8 47.5 Fixed charges - see below 57.7 55.1 52.0 ---------- ----------- ----------- Total $ 177.1 $ 178.5 $ 175.1 ========== =========== =========== Fixed Charges: Interest on long-term debt $ 49.7 $ 45.1 $ 42.2 Amortization of debt expense 0.3 0.3 0.3 Other interest 5.1 7.5 7.3 Interest component of rentals charged to income 2.6 2.2 2.2 ---------- ----------- ----------- Total fixed charges $ 57.7 $ 55.1 $ 52.0 ========== =========== =========== Ratio of earnings to fixed charges 3.07 3.24 3.37 ========== =========== ===========