EXHIBIT 12 COLUMBIA ENERGY GROUP AND SUBSIDIARIES Statements of Ratio of Earnings to Fixed Charges ($ in millions) Twelve Months Twelve Months Ended June 30, Ended December 31, -------------- ---------------------------------------------------------- 2003 2002 2002 2001 2000 1999 1998 - ------------------------------------------------------------- ---------------------------------------------------------- CONSOLIDATED INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES: 734.6 471.9 662.3 453.7 455.9 529.6 431.6 ADJUSTMENTS: Distributed (Undistributed) equity income - (1.0) (2.5) 2.2 (5.5) (5.8) (0.4) Fixed charges * 109.5 139.8 124.4 165.9 190.5 181.7 162.2 - ------------------------------------------------------------- ---------------------------------------------------------- Earnings available 844.1 610.7 784.2 621.8 640.9 705.5 593.4 *FIXED CHARGES: Interest on long-term and short-term debt 103.5 134.4 117.9 161.4 172.0 167.5 147.2 Portion of rentals representing interest 6.0 5.4 6.5 4.5 18.5 14.2 15.0 - ------------------------------------------------------------- ---------------------------------------------------------- Total Fixed Charges 109.5 139.8 124.4 165.9 190.5 181.7 162.2 RATIO OF EARNINGS TO FIXED CHARGES 7.71 4.37 6.30 3.75 3.36 3.88 3.66 ============================================================= ========================================================== Prior periods have been restated to reflect discontinued operations. 26