1 Exhibit 12 PIEDMONT NATURAL GAS COMPANY, INC. AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges For Fiscal Years Ended October 31, 1995 through 1999 and Twelve Months Ended July 31, 2000 (in thousands except ratio amounts) July 31, 2000 1999 1998 1997 1996 1995 ---- ---- ---- ---- ---- ---- Earnings: Net income from continuing operations $62,476 $ 58,207 $ 60,313 $ 54,074 $ 48,562 $ 40,310 Income taxes 40,404 37,645 38,807 34,650 30,928 25,442 Fixed charges 41,524 37,978 38,415 39,263 37,009 35,651 -------- -------- -------- -------- -------- -------- Total Adjusted Earnings $144,404 $133,830 $137,535 $127,987 $116,499 $101,403 ======== ======== ======== ======== ======== ======== Fixed Charges: Interest $ 39,604 $ 35,911 $ 36,453 $ 36,949 $ 34,511 $ 33,224 Amortization of debt expense 441 323 304 346 345 336 One-third of rental expense 1,479 1,744 1,658 1,968 2,153 2,091 -------- -------- -------- -------- -------- -------- Total Fixed Charges $ 41,524 $ 37,978 $ 38,415 $ 39,263 $ 37,009 $ 35,651 ======== ======== ======== ======== ======== ======== Ratio of Earnings to Fixed Charges 3.48 3.52 3.58 3.26 3.15 2.84 ==== ==== ==== ==== ==== ====