EXHIBIT 12-1

MICHIGAN CONSOLIDATED GAS COMPANY AND
SUBSIDIARIESCOMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES(Thousands
of Dollars)

|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  |  |   |         |         |  | 
|----------------------------------------------------------------- | ------------------------------ | - | ------------------------- | ------- |  | ------------------------- | - | ------- | ------------------------- |  |  | - | ------- | ------- |  | 
|                                                                  |                                |   | Twelve Months
      Ended |         |  | Twelve Months
      Ended |   |         | Twelve Months
      Ended | 
|                                                                  |                                |   | December 31,
      2000   |         |  | December 31,
      1999   |   |         | December 31,
      1998   | 
|EARNINGS
      AS DEFINED (1)
    Pre-tax Income                  |                                | $ | 163,384                   |         |  |                           | $ | 162,389 |                           |  |  | $ | 114,619 |        
|                                                                 
|                                                                 
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|Fixed
      charges                                               |                                |   | 61,884                    |         |  |                           |   | 59,340  |                           |  |  |   | 61,304  |        
|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  | 
|                                                                  | Earnings
      as defined      |   | $                         | 225,268 |  |                           |   | $       | 221,729                   |  |  |   | $       | 175,923 | 
|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  | 
|FIXED
      CHARGES AS DEFINED (1)
    Interest on long-term debt |                                | $ | 48,010                    |         |  |                           | $ | 48,455  |                           |  |  | $ | 47,091  |        
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|Interest
      on other borrowed funds                            |                                |   | 11,501                    |         |  |                           |   | 8,626   |                           |  |  |   | 12,113  |        
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|Amortization of debt discounts, premium and expense               |                                |   | 1,121                     |         |  |                           |   | 1,144   |                           |  |  |   | 955     |        
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|Interest
      implicit in rentals (2)                            |                                |   | 1,252                     |         |  |                           |   | 1,115   |                           |  |  |   | 1,145   |        
|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  | 
|                                                                  | Fixed
      charges as defined |   | $                         | 61,884  |  |                           |   | $       | 59,340                    |  |  |   | $       | 61,304  | 
|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  | 
|Ratio of
      Earnings to Fixed Charges                          |                                |   | 3.64                      |         |  |                           |   | 3.74    |                           |  |  |   | 2.87    |        
|                                                                  |                                |   |                           |         |  |                           |   |         |                           |  | 

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Notes:



|(1) |  | Earnings and fixed charges are defined and computed in
      accordance with Item 503 of Regulation S-K.
|--- |  | --------------------------------------------------------------------------------------------------------
|   
|(2) |  | This amount is estimated to be a reasonable approximation
      of the interest portion of rentals.     

MichCon is a guarantor of certain other debt. Fixed charges related to such
debt are deemed to be immaterial and therefore have been excluded from the above
ratios.