EXHIBIT 12 COLUMBIA ENERGY GROUP AND SUBSIDIARIES Statements of Ratio of Earnings to Fixed Charges ($ in millions) Twelve Months Twelve Months Ended March 31, Ended December 31, ----------------------- ----------------------------------------------------- 2003 2002 2002 2001 2000 1999 1998 - ------------------------------------------------------------------------ ----------------------------------------------------- CONSOLIDATED INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES: 809.4 487.9 727.6 491.2 465.6 556.1 461.1 ADJUSTMENTS: Interest during construction (3.1) (2.3) (3.0) (2.2) (2.2) (2.8) (2.1) Distributed (Undistributed) equity income - (0.6) (2.5) 2.2 (5.5) (5.8) (0.4) Fixed charges * 123.9 167.1 149.5 183.4 194.7 183.8 163.3 - ------------------------------------------------------------------------ ----------------------------------------------------- Earnings available 930.2 652.1 871.6 674.6 652.6 731.3 621.9 *FIXED CHARGES: Interest on long-term and short-term debt 115.1 158.5 121.7 175.5 174.0 167.8 146.8 Portion of rentals representing interest 8.8 8.6 27.8 7.9 20.7 16.0 16.5 - ------------------------------------------------------------------------ ----------------------------------------------------- Total Fixed Charges 123.9 167.1 149.5 183.4 194.7 183.8 163.3 RATIO OF EARNINGS TO FIXED CHARGES 7.51 3.90 5.83 3.68 3.35 3.98 3.81 ======================================================================== ===================================================== Prior periods have been restated to reflect discontinued operations.