EXHIBIT 12

                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (In Thousands)
                                   (Unaudited)
<TABLE>
<CAPTION>

                                                               TWELVE MONTHS ENDED                 TWELVE MONTHS ENDED
                                                                DECEMBER 31, 2000                   DECEMBER 31, 1999
                                                          ---------------------------------   ----------------------------------
                                                                         Supplemental (a)                    Supplemental (a)
                                                                      ---------------------              ----------------------
                                                                                      As                                  As
                                                                      Adjustment   Adjusted              Adjustment    Adjusted
                                                                      ----------   --------              ----------    --------
<S>                                                       <C>         <C>         <C>         <C>         <C>         <C>
Income from continuing operations .....................   $ 165,456   $      --   $ 165,456   $ 127,331   $      --   $ 127,331
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Add (Deduct):
Total income taxes ....................................     110,461          --     110,461      88,453          --      88,453
Interest on long-term debt ............................      61,120       1,599      62,719      65,649       2,509      68,158
Other interest charges ................................       9,056          --       9,056      11,249          --      11,249
Preferred stock dividends of subsidiary trust .........       7,980          --       7,980       7,980          --       7,980
Interest on leases ....................................         154          --         154         176          --         176
                                                          ---------   ---------   ---------   ---------   ---------   ---------
                                                            188,771       1,599     190,370     173,507       2,509     176,016
                                                          ---------   ---------   ---------   ---------   ---------   ---------

    Earnings available for fixed charges ..............     354,227       1,599     355,826     300,838       2,509     303,347
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Fixed Charges:
Interest on long-term debt ............................      61,120       1,599      62,719      65,649       2,509      68,158
Other interest charges ................................       9,056          --       9,056      11,249          --      11,249
Preferred stock dividends of subsidiary trust .........       7,980          --       7,980       7,980          --       7,980
Interest on leases ....................................         154          --         154         176          --         176
                                                          ---------   ---------   ---------    --------   ---------   ---------
    Total fixed charges ...............................      78,310       1,599      79,909      85,054       2,509      87,563
                                                          ---------   ---------   ---------    --------   ---------   ---------

Ratio of earnings to fixed charges ....................        4.52          --        4.45        3.54          --        3.46
                                                          =========   =========   =========   =========   =========   =========
Preferred stock dividends .............................   $   4,955   $      --   $   4,955   $   4,955   $      --   $   4,955
Ratio of net income before income taxes to net income .      1.6676          --      1.6676      1.6947          --      1.6947
                                                          ---------   ---------   ---------   ---------   ---------   ---------
Preferred stock dividend requirements
     before income tax ................................       8,263          --       8,263       8,397          --       8,397
                                                          ---------   ---------   ---------   ---------   ---------   ---------
Fixed charges plus preferred
     stock dividend requirements ......................      86,573       1,599      88,172      93,451       2,509      95,960
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Ratio of earnings to fixed charges plus preferred stock
     dividend requirements (pre-income tax basis) .....        4.09          --        4.04        3.22          --        3.16
                                                          =========   =========   =========   =========   =========   =========
</TABLE>

Note:(a)  Amounts  in  the  supplemental  columns  are  to  reflect  MidAmerican
     Energy's  portion of the net  interest  component  of  payments to Nebraska
     Public Power District under a long-term  purchase agreement for one-half of
     the plant capacity from Cooper Nuclear Station.

                                      -1-
<PAGE>

                                                                     EXHIBIT 12

                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (In Thousands)
                                   (Unaudited)
<TABLE>
<CAPTION>

                                                                 TWELVE MONTHS ENDED                 TWELVE MONTHS ENDED
                                                                  DECEMBER 31, 1998                  DECEMBER 31, 1997
                                                          ---------------------------------   ---------------------------------
                                                                        Supplemental (a)                    Supplemental (a)
                                                                      ---------------------               ---------------------
                                                                                      As                                  As
                                                                      Adjustment   Adjusted               Adjustment   Adjusted
                                                                      ----------   --------               ----------   --------
<S>                                                       <C>         <C>         <C>         <C>         <C>         <C>
Income from continuing operations .....................   $ 115,593   $      --   $ 115,593   $ 125,941   $      --   $ 125,941
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Add (Deduct):
Total income taxes ....................................      76,042          --      76,042      76,317          --      76,317
Interest on long-term debt ............................      70,193       2,931      73,124      78,120       3,760      81,880
Other interest charges ................................      14,128          --      14,128      10,027          --      10,027
Preferred stock dividends of subsidiary trust .........       7,980          --       7,980       7,980          --       7,980
Interest on leases ....................................         212          --         212         268          --         268
                                                          ---------   ---------   ---------   ---------   ---------   ---------
                                                            168,555       2,931     171,486     172,712       3,760     176,472
                                                          ---------   ---------   ---------   ---------   ---------   ---------

    Earnings available for fixed charges ..............     284,148       2,931     287,079     298,653       3,760     302,413
                                                          ---------   ---------   ---------   ---------   ---------   ---------


Fixed Charges:
Interest on long-term debt ............................      70,193       2,931      73,124      78,120       3,760      81,880
Other interest charges ................................      14,128          --      14,128      10,027          --      10,027
Preferred stock dividends of subsidiary trust .........       7,980          --       7,980       7,980          --       7,980
Interest on leases ....................................         212          --         212         268          --         268
                                                          ---------   ---------   ---------   ---------   ---------   ---------
    Total fixed charges ...............................      92,513       2,931      95,444      96,395       3,760     100,155
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Ratio of earnings to fixed charges ....................        3.07          --        3.01        3.10          --        3.02
                                                          =========   =========   =========   =========   =========   =========

Preferred stock dividends .............................   $   4,952   $      --   $   4,952   $   6,488   $      --   $   6,488
Ratio of net income before income taxes to net income .      1.6578          --      1.6578      1.6060          --      1.6060
                                                          ---------   ---------   ---------   ---------   ---------   ---------
Preferred stock dividend requirements
   before income tax ..................................       8,209          --       8,209      10,420          --      10,420
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Fixed charges plus preferred
   stock dividend requirements ........................     100,722       2,931     103,653     106,815       3,760     110,575
                                                          ---------   ---------   ---------   ---------   ---------   ---------

Ratio of earnings to fixed charges plus preferred stock
     dividend requirements (pre-income tax basis) .....        2.82          --        2.77        2.80          --        2.73
                                                          =========   =========   =========   =========   =========   =========
</TABLE>

Note:(a)  Amounts  in  the  supplemental  columns  are  to  reflect  MidAmerican
     Energy's  portion of the net  interest  component  of  payments to Nebraska
     Public Power District under a long-term  purchase agreement for one-half of
     the plant  capacity from Cooper  Nuclear  Station.

                                      -2-
<PAGE>

                                                                      EXHIBIT 12


                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (In Thousands)
                                  (Unaudited)
<TABLE>
<CAPTION>

                                                                 TWELVE MONTHS ENDED
                                                                  DECEMBER 31,1996
                                                          ---------------------------------
                                                                        Supplemental (a)
                                                                      ---------------------
                                                                                     As
                                                                      Adjustment  Adjusted
<S>                                                       <C>         <C>         <C>
Income from continuing operations .....................   $ 165,132   $      --   $ 165,132
                                                          ---------   ---------   ---------

Add (Deduct):
Total income taxes ....................................     112,927          --     112,927
Interest on long-term debt ............................      79,434       3,615      83,049
Other interest charges ................................      10,842          --      10,842
Preferred stock dividends of subsidiary trust .........         288          --         288
Interest on leases ....................................         375          --         375
                                                          ---------   ---------   ---------
                                                            203,866       3,615     207,481
                                                          ---------   ---------   ---------

    Earnings available for fixed charges ..............     368,998       3,615     372,613
                                                          ---------   ---------   ---------


Fixed Charges:
Interest on long-term debt ............................      79,434       3,615      83,049
Other interest charges ................................      10,842          --      10,842
Preferred stock dividends of subsidiary trust .........         288          --         288
Interest on leases ....................................         375          --         375
                                                          ---------   ---------   ---------

    Total fixed charges ...............................      90,939       3,615      94,554
                                                          ---------   ---------   ---------

Ratio of earnings to fixed charges ....................        4.06          --        3.94
                                                          =========   =========   =========

Preferred stock dividends .............................   $  10,401   $      --   $  10,401
Ratio of net income before income taxes to net income .      1.6839          --      1.6839
                                                          ---------   ---------   ---------
Preferred stock dividend requirements
   before income tax ..................................      17,514          --      17,514
                                                          ---------   ---------   ---------
Fixed charges plus preferred
   stock dividend requirements ........................     108,453       3,615     112,068
                                                          ---------   ---------   ---------

Ratio of earnings to fixed charges plus preferred stock
     dividend requirements (pre-income tax basis) .....        3.40          --        3.32
                                                          =========   =========   =========
</TABLE>

Note:(a)  Amounts  in  the  supplemental  columns  are  to  reflect  MidAmerican
     Energy's  portion of the net  interest  component  of  payments to Nebraska
     Public Power District under a long-term  purchase agreement for one-half of
     the plant capacity from Cooper Nuclear Station.

                                      -3-