EXHIBIT 12-1

MCN ENERGY GROUP INC. AND SUBSIDIARIES
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(DOLLARS IN THOUSANDS)

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|------------------------------------------------------------- | ------------------------ | - | -------------- | ------- | ----------------- | - | ----------------- | ------- |  | - | -------- | -------- | -
|                                                              |                          |   | TWELVE MONTHS  |         | TWELVE MONTHS     |   | TWELVE MONTHS    
|                                                              |                          |   | ENDED          |         | ENDED             |   | ENDED            
|                                                              |                          |   | March 31, 2000 |         | December 31, 1999 |   | December 31, 1998
|                                                              |                          |   |                |         |                   |   |                  
|EARNINGS AS DEFINED (1)
Pre-tax income (loss) (2) (4) (5) (6) |                          | $ | (97,526        | )       |                   | $ | (51,495           | )       |  | $ | (497,476 | )       
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|Fixed charges (3)                                             |                          |   | 166,175        |         |                   |   | 168,203           |         |  |   | 158,242  |         
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|                                                              | Earnings as defined      |   | $              | 68,649  |                   |   | $                 | 116,708 |  |   | $        | (339,234 | )
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|FIXED CHARGES AS DEFINED
(1)
Interest, expensed               |                          | $ | 120,099        |         |                   | $ | 119,773           |         |  | $ | 111,750  |         
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|Interest, capitalized                                         |                          |   | 5,647          |         |                   |   | 8,929             |         |  |   | 19,938   |         
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|Amortization of debt discounts, premium
and expense           |                          |   | 3,994          |         |                   |   | 3,562             |         |  |   | 2,869    |         
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|Interest implicit in rentals                                  |                          |   | 2,096          |         |                   |   | 2,208             |         |  |   | 2,554    |         
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|Preferred securities dividend requirements
of subsidiaries    |                          |   | 38,426         |         |                   |   | 40,139            |         |  |   | 36,370   |         
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|                                                              | Fixed charges as defined |   | $              | 170,262 |                   |   | $                 | 174,611 |  |   | $        | 173,481  |  
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|Coverage Deficiency (7) (8)
(9)                               |                          | $ | 101,613        |         |                   | $ | 57,903            |         |  | $ | 512,715  |         
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|(1) |  | Earnings and fixed charges are defined and computed in accordance with Item
503 of Regulation S-K.                                                                                                                                                                                          
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|(2) |  | This amount represents the aggregate of (a) the pre-tax income (loss)
of MCN and its majority-owned subsidiaries, (b) MCNs share of
pre-tax income of its 50% owned companies and (c) any income actually
received from less than 50% owned companies.                                     
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|(3) |  | Fixed charges added to earnings are adjusted to exclude interest
capitalized during the period for nonutility companies.                                                                                                                                                                    
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|(4) |  | For the twelve-month period ended March 31, 2000, MCN recorded merger costs and
several unusual items consisting of property write-downs, contract
losses, gains and losses on sale of assets, and
investment losses totaling $165,412,000 pre-tax ($107,518,000 net of
taxes).             
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|(5) |  | For the twelve-month period ended December 31, 1999, MCN recorded merger costs and
several unusual items consisting of property write-downs, contract
losses, gains and losses on sale of assets, and investment losses totaling $174,918,000 pre-tax ($113,697,000 net of
taxes).          
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|(6) |  | For the twelve-month period ended December 31, 1998, MCN recorded
several unusual items consisting of property write-downs,
restructuring charges, gains and losses on sale of assets and
investment losses totaling $589,644,000 pre-tax ($378,347,000 net of
taxes and minority interest).
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|(7) |  | Earnings for the twelve-month period ended March 31, 2000 were not
adequate to cover fixed charges. The amount of the coverage
deficiency was $101,613,000. The Ratio of Earnings to Fixed Charges
excluding merger costs and unusual items would have been 1.37.                           
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|(8) |  | Earnings for the twelve-month period ended December 31, 1999 were
not adequate to cover fixed charges. The amount of the coverage
deficiency was $57,903,000. The Ratio of Earnings to Fixed Charges
excluding merger costs and unusual items would have been 1.67.                         
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|(9) |  | Earnings for the twelve-month period ended December 31, 1998 were
not adequate to cover fixed charges. The amount of the coverage
deficiency was $512,715,000. The Ratio of Earnings to Fixed Charges
excluding unusual items would have been 1.44.