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Exhibit 31-7

FORM 10-Q CERTIFICATION

I, Anthony F. Earley, Jr., Chairman, President, Chief Executive and Chief
Operating Officer of Michigan Consolidated Gas Company, certify that:



|1. |  | I have reviewed this Form 10-Q for the Quarterly Period Ending March
31, 2004 of Michigan Consolidated Gas Company;
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|2. |  | Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which
such statements were made, not misleading with respect to the period
covered by this report;
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|3. |  | Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material
respects the financial condition, results of operations and cash flows
of the registrant as of, and for, the periods presented in this report;
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|4. |  | The registrants other certifying officer(s) and I are responsible
for establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the
registrant and have:
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| | a. |  | Designed such disclosure controls and procedures, or caused
such disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the
period in which this report is being prepared;
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| | b. |  | (Intentionally omitted)
| | -- |  | -----------------------



| | c. |  | Evaluated the effectiveness of the registrants disclosure
controls and procedures and presented in this report our
conclusions about the effectiveness of the disclosure controls and
procedures, as of the end of the period covered by this report
based on such evaluation; and
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| | d. |  | Disclosed in this report any change in the registrants
internal control over financial reporting that occurred during the
registrants most recent fiscal quarter that has materially
affected, or is reasonably likely to materially affect, the
registrants internal control over financial reporting; and
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|5. |  | The registrants other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the registrants auditors and the audit committee of the
registrants board of directors (or persons performing the equivalent
functions):
|-- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. |  | All significant deficiencies and material weaknesses in the
design or operation of internal control over financial reporting
which are reasonably likely to adversely affect the registrants
ability to record, process, summarize and report financial
information; and
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| | b. |  | Any fraud, whether or not material, that involves
management or other employees who have a significant role in the
registrants internal control over financial reporting.
| | -- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|                                                                                                                             |  |                  
|---------------------------------------------------------------------------------------------------------------------------- |  | -----------------
|/s/ ANTHONY F. EARLEY, JR.                                                                                                   |  | Date: May 5, 2004
|                                                                                                                             |  |                  
|Anthony F. Earley, Jr.
Chairman, President, Chief Executive and
Chief Operating Officer of
Michigan Consolidated Gas Company |  |                  

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