1 Exhibit 12 PIEDMONT NATURAL GAS COMPANY, INC. AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges For Fiscal Years Ended October 31, 1993 through 1997 and Twelve Months Ended April 30, 1998 (in thousands except ratio amounts) April 30, 1998 1997 1996 1995 1994 1993 -------- -------- -------- -------- ------- ------- Earnings: Net income from continuing operations $ 61,201 $ 54,074 $ 48,562 $ 40,310 $35,506 $37,534 Income taxes 39,386 34,650 30,928 25,442 21,407 23,427 Fixed charges 38,162 39,263 37,009 35,651 29,736 26,715 -------- -------- -------- -------- ------- ------- Total Adjusted Earnings $138,749 $127,987 $116,499 $101,403 $86,649 $87,676 ======== ======== ======== ======== ======= ======= Fixed Charges: Interest $ 36,507 $ 36,949 $ 34,511 $ 33,224 $27,671 $24,870 Amortization of debt expense 319 346 345 336 334 192 One-third of rental expense 1,336 1,968 2,153 2,091 1,731 1,653 -------- -------- -------- -------- ------- ------- Total Fixed Charges $ 38,162 $ 39,263 $ 37,009 $ 35,651 $29,736 $26,715 ======== ======== ======== ======== ======= ======= Ratio of Earnings to Fixed Charges 3.64 3.26 3.15 2.84 2.91 3.28 ======== ======== ======== ======== ======= ======= -11-