<PAGE>   1
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS
COMPANY, a Michigan corporation, does hereby constitute and appoint, Stephen E.
Ewing and Howard L. Dow III, and each of them, his true and lawful attorneys
and agents, each with full power and authority (acting alone and without the
other) to execute in his name and on his behalf and to file with the
Securities and Exchange Commission an Annual Report on Form 10-K for the year
ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ Alfred R. Glancy III
                                                ------------------------
                                                    Alfred R. Glancy III


<PAGE>   2
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred R.
Glancy III and Howard L. Dow III, and each of them, his true and lawful 
attorneys and agents, each with full power and authority (acting alone and 
without the other) to execute in his name and on his behalf and to file with the
Securities and Exchange Commission an Annual Report on Form 10-K for the year
ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ Stephen E. Ewing
                                                ------------------------
                                                    Stephen E. Ewing


<PAGE>   3
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS 
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred
R. Glancy  III, Stephen E. Ewing and Howard L. Dow III, and each of them, his
true and  lawful attorneys and agents, each with full power and authority
(acting alone and without the other) to execute in his name and on his behalf
and to file with the Securities and Exchange Commission an Annual Report on
Form 10-K for the year ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ William K. McCrackin
                                                ------------------------
                                                    William K. McCrackin


<PAGE>   4
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS 
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred R.
Glancy, III and Stephen E. Ewing, and each of them, his true and lawful
attorneys and   agents, each with full power and authority (acting alone and
without the other) to execute in his name and on his behalf and to file
with the Securities and Exchange Commission an Annual Report on Form 10-K for
the year ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ Howard L. Dow III
                                                ------------------------
                                                    Howard L. Dow III


<PAGE>   5
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS 
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred R.
Glancy III, Stephen E. Ewing and Howard L. Dow III, and each of them, his true
and lawful attorneys and agents, each with full power and authority (acting
alone and without the other) to execute in his name and on his behalf and to
file with the Securities and Exchange Commission an Annual Report on Form 10-K
for the year ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ Carl J. Croskey
                                                ------------------------
                                                    Carl J. Croskey


<PAGE>   6
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS 
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred R.
Glancy III, Stephen E. Ewing and Howard L. Dow III, and each of them, his true
and lawful attorneys and agents, each with full power and authority (acting
alone and without the other) to execute in his name and on his behalf and to
file with the Securities and Exchange Commission an Annual Report on Form 10-K
for the year ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ Daniel L. Schiffer
                                                ------------------------
                                                    Daniel L. Schiffer


<PAGE>   7
                                                                    EXHIBIT 24-1


                              POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:

        That the undersigned Director or Officer of MICHIGAN CONSOLIDATED GAS 
COMPANY, a Michigan corporation, does hereby constitute and appoint, Alfred R.
Glancy III, Stephen E. Ewing and Howard L. Dow III, and each of them, his true
and lawful attorneys and agents, each with full power and authority (acting
alone and without the other) to execute in his name and on his behalf and to
file with the Securities and Exchange Commission an Annual Report on Form 10-K
for the year ended December 31, 1997, including all amendments.
        
        IN WITNESS WHEREOF, I have executed this Power of Attorney this 26th
day of February, 1998.


                                                /s/ John E. vonRosen
                                                ------------------------
                                                    John E. vonRosen