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                                                                    EXHIBIT 12.1
 
                           EL PASO ENERGY CORPORATION
 
                  COMPUTATION OF EARNINGS TO FIXED CHARGES AND
                RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND
              PREFERRED AND PREFERENCE STOCK DIVIDEND REQUIREMENTS
 
   


                                                             YEAR ENDED DECEMBER 31,
                                                      -------------------------------------
                                                      1998    1997    1996    1995    1994
                                                      -----   -----   -----   -----   -----
                                                              (DOLLARS IN MILLIONS)
                                                                       
Earnings
  Income from continuing operations.................  $ 225   $ 186   $  38   $  85   $  90
  Income taxes......................................    127     129      25      48      58
  Minority interest.................................     25      25       2       0       0
                                                      -----   -----   -----   -----   -----
  Income from continuing operations before income
     taxes and minority interest....................    377     340      65     133     148
  Interest and debt expense.........................    262     218     100      85      76
  Interest component of rentals.....................      9       7       5       3       3
  Distributions in excess of earnings on equity
     investments (undistributed earnings on equity
     investments)...................................    (28)     --      --      --      --
                                                      -----   -----   -----   -----   -----
          Total earnings available for fixed
             charges................................  $ 620   $ 565   $ 170   $ 221   $ 227
                                                      =====   =====   =====   =====   =====
Fixed charges
  Interest and debt expense.........................  $ 262   $ 218   $ 100   $  85   $  76
  Interest components of rentals....................      9       7       5       3       3
                                                      -----   -----   -----   -----   -----
  Fixed charges excluding preferred stock dividend
     requirement....................................    271     225     105      88      79
  Preferred stock dividend requirements.............     37      25       2      --      --
                                                      -----   -----   -----   -----   -----
          Total fixed charges.......................  $ 308   $ 250   $ 107   $  88   $  79
                                                      =====   =====   =====   =====   =====
Ratio of Earnings to Fixed Charges(1)...............   2.01    2.26    1.59    2.51    2.87
                                                      =====   =====   =====   =====   =====

    
 
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(1)  The ratio of earnings to combined fixed charges and preferred and
     preference stock dividend requirements for the periods presented is the
     same as the ratio of earnings to fixed charges since El Paso Energy has no
     outstanding preferred stock or preference stock and, therefore, no dividend
     requirements.
 
   
     For purposes of calculating these ratios: (i) "fixed charges" represent
interest cost (exclusive of interest on rate refunds), amortization of debt
costs, the estimated portion of rental expense representing the interest factor,
and pretax preferred stock dividend requirements of majority-owned subsidiaries;
and (ii) "earnings" represent the aggregate of income from continuing operations
before income taxes, interest expense (exclusive of interest on rate refunds),
amortization of debt costs, the portion of rental expense representing the
interest factor, and the actual amount of any preferred stock dividend
requirements of majority owned subsidiaries, adjusted to reflect actual
distributions from equity investments.