Exhibit 12 PIEDMONT NATURAL GAS COMPANY, INC. AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges For Fiscal Years Ended October 31, 1999 through 2003 (in thousands except ratio amounts) 2003 2002 2001 2000 1999 --------- --------- --------- --------- --------- Earnings: Pre-tax income from continuing operations $ 105,189 $ 82,091 $ 90,683 $ 99,199 $ 103,077 Distributed income of equity investees 10,188 22,143 9,885 4,255 - Fixed charges 43,491 44,251 47,793 44,368 37,978 Preferred security dividend, net of tax (276) - - - - --------- --------- --------- --------- --------- Total Adjusted Earnings $ 158,592 $ 148,485 $ 148,361 $ 147,822 $ 141,055 ========= ========= ========= ========= ========= Fixed Charges: Interest $ 41,401 $ 42,250 $ 45,286 $ 42,010 $ 35,911 Amortization of debt expense 365 366 420 465 323 One-third of rental expense 1,449 1,635 2,087 1,893 1,744 Preferred security dividend, net of tax 276 - - - - --------- --------- --------- --------- --------- Total Fixed Charges $ 43,491 $ 44,251 $ 47,793 $ 44,368 $ 37,978 ========= ========= ========= ========= ========= Ratio of Earnings to Fixed Charges 3.65 3.36 3.10 3.33 3.71 ========= ========= ========= ========= =========