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MCN ENERGY GROUP INC.                                            EXHIBIT 12-2
COMPUTATION OF INTEREST COVERAGE RATIO
(Dollars In Thousands)



The following table sets forth the interest coverage ratio for MCN on a
historical basis for the periods indicated. This ratio differs from the SEC
prescribed "Ratio of Earnings to Fixed Charges" in its treatment of certain
hybrid securities of MCN.

<TABLE>
<CAPTION>

                                                           Twelve Months            Twelve Months             Twelve Months     
                                                               Ended                    Ended                    Ended          
                                                          March 31, 1998          December 31, 1997        December 31, 1996
                                                     ----------------------    -----------------------   ---------------------
<S>                                                   <C>                           <C>                      <C>            
EARNINGS AS ADJUSTED:
Pre-tax income (1)                                           $ 194,458                 $ 194,430               $ 148,944
Non-recourse interest                                            2,478                     1,609                       -
Interest capitalized                                           (19,601)                  (18,190)                (14,631)
Preferred dividend adjustment (2)                               34,701                    32,465                  17,989
Pension costs                                                  (34,954)                  (20,539)                (14,029)
Postretirement costs                                            11,717                    11,411                  13,586
Interest rate charges                                          109,523                   103,840                  89,136
                                                             ---------                 ---------               ---------         
                                                             $ 298,322                 $ 305,026               $ 240,995
                                                             =========                 =========               ========= 
                                                                                                               
INTEREST RATE CHARGES:                                                                                         
Interest expensed                                            $  88,111                 $  86,453               $  77,781
Interest capitalized                                            19,601                    18,190                  14,631
Interest implicit in rentals                                     2,375                     2,181                   2,339
Non-recourse interest                                           (2,478)                   (1,609)                      -
Preferred dividends adjustment (3)                               1,914                    (1,375)                 (5,615)
                                                             ---------                 ---------               --------- 
                                                             $ 109,523                 $ 103,840               $  89,136
                                                             =========                 =========               ========= 
                                                                                                               
Interest Coverage Ratio                                           2.72                      2.94                    2.70
                                                             =========                 =========               ========= 
</TABLE>

(1)  Income from continuing operations before income taxes

(2)  Preferred dividends expensed, adjusted to: exclude(a) dividends on the
     $100,000,000 of Single Point Remarketed Reset Capital Securities (SPRRCS)
     of MCN Financing VI, (b) dividends on the $100,000,000 of Private
     Institutional Trust Securities (PRINTS) of MCN Financing V and to include
     (c) interest on the $130,000,000 of 6.82% Series Medium-Term Notes,
     issued in conjunction with the $135,000,000 of 8% Preferred Redeemable
     Increased Dividend Equity Securities of MCN. 

(3)  Interest rate charges are being adjusted to exclude interest on 
     $130,000,000 of 6.82% Series Medium-Term Notes and include dividends on 
     the SPRRCS and PRINTS.