EXHIBIT 12-1

MCN ENERGY GROUP INC. AND SUBSIDIARIES

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES


|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |         | 
|---------------------------------------------------------- | ------------------------ | ---------------------- | ------- | ----------------- |  | ----------------- | -------- | -------- | - | - | ------- | ------- | 
|                                                           |                          | Twelve Months          |         | Twelve Months     |  | Twelve Months    
|                                                           |                          | Ended                  |         | Ended             |  | Ended            
|                                                           |                          | September 30, 1999     |         | December 31, 1998 |  | December 31, 1997
|                                                           |                          |                        |         |                   |  |                  
|                                                           |                          |                       
|                                                           |                          | (Dollars in Thousands)
|EARNINGS AS DEFINED(1)                                     |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|                                                          
|                                                          
|                                                          
|                                                          
|Pre-tax income(2)(5)(6)                                    |                          | $                      | (32,301 | )                 |  | $                 | (497,476 | )        |   | $ | 167,336 |        
|                                                          
|                                                          
|                                                          
|                                                          
|Fixed charges(3)                                           |                          |                        | 169,024 |                   |  |                   | 158,242  |          |   |   | 125,338 |        
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|                                                           | Earnings as defined      |                        | $       | 136,723           |  |                   | $        | (339,234 | ) |   | $       | 292,674 | 
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|FIXED CHARGES AS DEFINED(1)(4)                             |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|                                                          
|                                                          
|                                                          
|                                                          
|Interest, expensed                                         |                          | $                      | 119,655 |                   |  | $                 | 111,750  |          |   | $ | 86,453  |        
|                                                          
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|Interest, capitalized                                      |                          |                        | 11,383  |                   |  |                   | 19,938   |          |   |   | 18,190  |        
|                                                          
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|                                                          
|Amortization of debt discounts, premium and expense        |                          |                        | 3,351   |                   |  |                   | 2,869    |          |   |   | 2,426   |        
|                                                          
|                                                          
|                                                          
|                                                          
|Interest implicit in rentals                               |                          |                        | 2,363   |                   |  |                   | 2,554    |          |   |   | 2,181   |        
|                                                          
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|Preferred securities dividend requirements of subsidiaries |                          |                        | 40,212  |                   |  |                   | 36,370   |          |   |   | 31,090  |        
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|                                                           | Fixed charges as defined |                        | $       | 176,964           |  |                   | $        | 173,481  |   |   | $       | 140,340 | 
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|Ratio of Earnings to Fixed Charges                         |                          |                        |         |                   |  |                   |          |          |   |   | 2.09    |        
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        
|Coverage Deficiency(7)(8)                                  |                          | $                      | 40,241  |                   |  | $                 | 512,715  |          |   |   |         |        
|                                                           |                          |                        |         |                   |  |                   |          |          |   |   |         |        




|    |                                                                                                                                                                                                                                                                                 
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|(1) | Earnings and fixed charges are defined and computed in accordance
	 with Item 503 of Regulation S-K.                                                                                                                                                                            
|   
|(2) | This amount represents the aggregate of (a) the pre-tax
	income from continuing operations 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.
|   
|(3) | Fixed charges added to earnings are adjusted to exclude interest
	capitalized during the period for nonutility companies.                                                                                                                                                       
|   
|(4) | Fixed charges represent (a) interest, whether expensed or
	capitalized, (b)  amortization of debt discount, premium and
	 expense, (c) an estimate of interest implicit in rentals,
	and (d) preferred securities dividend requirements of
	subsidiaries.                       
|   
|(5) | For the twelve-month period ended September 30, 1999, MCN
	recorded several unusual charges, consisting of property
	write-downs, investment loss and losses on sale of properties,
	totaling $134,131,000 pre-tax ($87,185,000 net of taxes).                                  
|   
|(6) | For the twelve-month period ended December 31, 1998, MCN
	recorded several unusual charges, consisting of property
	write-downs, investment losses and restructuring charges,
	totaling $606,953,000 pre-tax ($389,598,000 net of taxes and
	minority interest).                
|   
|(7) | Earnings for the twelve-month period ended September 30,
	1999, were not adequate to cover fixed charges. The amount of the
	 coverage deficiency was $40,241,000. The Ratio of Earnings to
	Fixed Charges excluding unusual charges would have been 1.53.                      
|   
|(8) | 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 charges would have been 1.54.