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, 2001                DECEMBER 31, 2000
                                                          ------------------------------   ------------------------------
                                                                      Supplemental (a)                Supplemental (a)
                                                                     -------------------           ----------------------
                                                                                   As                              As
                                                                    Adjustment  Adjusted            Adjustment  Adjusted
                                                                    ----------  --------            ----------  --------
<S>                                                       <C>        <C>        <C>        <C>        <C>        <C>
Income from continuing operations .....................   $152,778   $     --   $152,778   $165,456   $     --   $165,456
                                                          --------   --------   --------   --------   --------   --------

Add (Deduct):
Total income taxes ....................................    112,452         --    112,452    110,461         --    110,461
Interest on long-term debt ............................     60,880      1,453     62,333     61,120      1,599     62,719
Other interest charges ................................      8,401         --      8,401      9,056         --      9,056
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980      7,980         --      7,980
Interest on leases ....................................        137         --        137        154         --        154
                                                          --------   --------   --------   --------   --------   --------
                                                           189,850      1,453    191,303    188,771      1,599    190,370
                                                          --------   --------   --------   --------   --------   --------

    Earnings available for fixed charges ..............    342,628      1,453    344,081    354,227      1,599    355,826
                                                          --------   --------   --------   --------   --------   --------

Fixed Charges:
Interest on long-term debt ............................     60,880      1,453     62,333     61,120      1,599     62,719
Other interest charges ................................      8,401         --      8,401      9,056         --      9,056
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980      7,980         --      7,980
Interest on leases ....................................        137         --        137        154         --        154
                                                          --------   --------   --------   --------   --------   --------
    Total fixed charges ...............................     77,398      1,453     78,851     78,310      1,599     79,909
                                                          --------   --------   --------   --------   --------   --------

Ratio of earnings to fixed charges ....................       4.43         --       4.36       4.52         --       4.45
                                                          ========   ========   ========   ========   ========   ========

Preferred stock dividends .............................   $  4,544   $     --   $  4,544   $  4,955   $     --   $  4,955
Ratio of net income before income taxes to net income .     1.7360         --     1.7360     1.6676         --     1.6676
                                                          --------   --------   --------   --------   --------   --------
Preferred stock dividend requirements
     before income tax ................................      7,888         --      7,888      8,263         --      8,263
                                                          --------   --------   --------   --------   --------   --------
Fixed charges plus preferred
     stock dividend requirements ......................     85,286      1,453     86,739     86,573      1,599     88,172
                                                          --------   --------   --------   --------   --------   --------

Ratio of earnings to fixed charges plus preferred stock
dividend requirements (pre-income tax basis) ..........       4.02         --       3.97       4.09         --       4.04
                                                          ========   ========   ========   ========   ========   ========
</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, 1999                DECEMBER 31, 1998
                                                          ------------------------------   ------------------------------
                                                                      Supplemental (a)                 Supplemental (a)
                                                                    --------------------              -------------------
                                                                                   As                               As
                                                                    Adjustment  Adjusted             Adjustment  Adjusted
                                                                    ----------  --------             ----------  --------
<S>                                                       <C>        <C>        <C>        <C>        <C>        <C>
Income from continuing operations .....................   $127,331   $     --   $127,331   $115,593   $     --   $115,593
                                                          --------   --------   --------   --------   --------   --------

Add (Deduct):
Total income taxes ....................................     88,453         --     88,453     76,042         --     76,042
Interest on long-term debt ............................     65,649      2,509     68,158     70,193      2,931     73,124
Other interest charges ................................     11,249         --     11,249     14,128         --     14,128
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980      7,980         --      7,980
Interest on leases ....................................        176         --        176        212         --        212
                                                          --------   --------   --------   --------   --------   --------
                                                           173,507      2,509    176,016    168,555      2,931    171,486
                                                          --------   --------   --------   --------   --------   --------

    Earnings available for fixed charges ..............    300,838      2,509    303,347    284,148      2,931    287,079
                                                          --------   --------   --------   --------   --------   --------

Fixed Charges:
Interest on long-term debt ............................     65,649      2,509     68,158     70,193      2,931     73,124
Other interest charges ................................     11,249         --     11,249     14,128         --     14,128
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980      7,980         --      7,980
Interest on leases ....................................        176         --        176        212         --        212
                                                          --------   --------   --------   --------   --------   --------
    Total fixed charges ...............................     85,054      2,509     87,563     92,513      2,931     95,444
                                                          --------   --------   --------   --------   --------   --------

Ratio of earnings to fixed charges ....................       3.54         --       3.46       3.07         --       3.01
                                                          ========   ========   ========   ========   ========   ========

Preferred stock dividends .............................   $  4,955   $     --   $  4,955   $  4,952   $     --   $  4,952
Ratio of net income before income taxes to net income .     1.6947         --     1.6947     1.6578         --     1.6578
                                                          --------   --------   --------   --------   --------   --------
Preferred stock dividend requirements
   before income tax ..................................      8,397         --      8,397      8,209         --      8,209
                                                          --------   --------   --------   --------   --------   --------
Fixed charges plus preferred
   stock dividend requirements ........................     93,451      2,509     95,960    100,722      2,931    103,653
                                                          --------   --------   --------   --------   --------   --------

Ratio of earnings to fixed charges plus preferred stock
dividend requirements (pre-income tax basis) ..........       3.22         --       3.16       2.82         --       2.77
                                                          ========   ========   ========   ========   ========   ========
</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, 1997
                                                         --------------------------------
                                                                       Supplemental (a)
                                                                    ---------------------
                                                                                    As
                                                                    Adjustment   Adjusted
                                                                    ----------  ---------
<S>                                                       <C>        <C>        <C>
Income from continuing operations .....................   $125,941   $     --   $125,941
                                                          --------   --------   --------
Add (Deduct):
Total income taxes ....................................     76,317         --     76,317
Interest on long-term debt ............................     78,120      3,760     81,880
Other interest charges ................................     10,027         --     10,027
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980
Interest on leases ....................................        268         --        268
                                                          --------   --------   --------
                                                           172,712      3,760    176,472
                                                          --------   --------   --------

    Earnings available for fixed charges ..............    298,653      3,760    302,413
                                                          --------   --------   --------

Fixed Charges:
Interest on long-term debt ............................     78,120      3,760     81,880
Other interest charges ................................     10,027         --     10,027
Preferred stock dividends of subsidiary trust .........      7,980         --      7,980
Interest on leases ....................................        268         --        268
                                                          --------   --------   --------
    Total fixed charges ...............................     96,395      3,760    100,155
                                                          --------   --------   --------

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

Preferred stock dividends .............................   $  6,488   $     --   $  6,488
Ratio of net income before income taxes to net income .     1.6060         --     1.6060
                                                          --------   --------   --------
Preferred stock dividend requirements
   before income tax ..................................     10,420         --     10,420
                                                          --------   --------   --------
Fixed charges plus preferred
   stock dividend requirements ........................    106,815      3,760    110,575
                                                          --------   --------   --------

Ratio of earnings to fixed charges plus preferred stock
dividend requirements (pre-income tax basis) ..........       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.

                                      -3-