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, ---------------- --------------------------------------------------- 2004 2003 2003 2002 2001 2000 1999 ---------------- --------------------------------------------------- CONSOLIDATED INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES: 677.0 734.6 727.8 662.3 453.7 455.9 529.6 ADJUSTMENTS: Distributed (Undistributed) equity income - - 0.1 (2.5) 2.2 (5.5) (5.8) Fixed charges * 90.7 109.5 91.6 124.4 165.9 190.5 181.7 ----- ----- ----- ----- ----- ----- ----- Earnings available 767.7 844.1 819.5 784.2 621.8 640.9 705.5 *FIXED CHARGES: Interest on long-term and short-term debt 84.9 103.5 85.8 117.9 161.4 172.0 167.5 Portion of rentals representing interest 5.8 6.0 5.8 6.5 4.5 18.5 14.2 ----- ----- ----- ----- ----- ----- ----- Total Fixed Charges 90.7 109.5 91.6 124.4 165.9 190.5 181.7 RATIO OF EARNINGS TO FIXED CHARGES 8.46 7.71 8.95 6.30 3.75 3.36 3.88 ===== ===== ===== ===== ===== ===== ===== Prior periods have been restated to reflect discontinued operations.