1 Exhibit 12 PIEDMONT NATURAL GAS COMPANY, INC. AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges For Fiscal Years Ended October 31, 1996 through 2000 and Twelve Months Ended July 31, 2001 (in thousands except ratio amounts) ---------------------------------------------------- July 31, 2001 2000 1999 1998 1997 1996 -------- -------- -------- -------- -------- -------- Earnings: Net income from continuing operations $ 66,113 $ 64,031 $ 58,207 $ 60,313 $ 54,074 $ 48,562 Income taxes 42,274 41,356 37,645 38,807 34,650 30,928 Fixed charges 48,820 44,368 37,978 38,415 39,263 37,009 -------- -------- -------- -------- -------- -------- Total Adjusted Earnings $157,207 $149,755 $133,830 $137,535 $127,987 $116,499 ======== ======== ======== ======== ======== ======== Fixed Charges: Interest $ 46,484 $ 42,010 $ 35,911 $ 36,453 $ 36,949 $ 34,511 Amortization of debt expense 457 465 323 304 346 345 One-third of rental expense 1,879 1,893 1,744 1,658 1,968 2,153 -------- -------- -------- -------- -------- -------- Total Fixed Charges $ 48,820 $ 44,368 $ 37,978 $ 38,415 $ 39,263 $ 37,009 ======== ======== ======== ======== ======== ======== Ratio of Earnings to Fixed Charges 3.22 3.38 3.52 3.58 3.26 3.15 ======== ======== ======== ======== ======== ========