EXHIBIT 99.1

                               DTE Energy Company
                      2000 2nd Ave., Detroit, MI 48226-1279


                                            DTE ENERGY
                                            [LOGO]

May 31, 2001

THE NEW DTE ENERGY FORMED WITH CLOSING
OF MCN ENERGY GROUP MERGER

         DETROIT - The completion today of the DTE Energy Co. (NYSE:DTE) merger
with MCN Energy Group positions DTE Energy to become a major regional energy
player.

         The merger agreement was announced in October 1999 and received the
approvals of shareholders of both companies and federal regulatory agencies
prior to today's closing.

         "We can now proceed full steam with the knowledge that the creation of
a regional energy powerhouse will be a reality," said Anthony F. Earley Jr., DTE
Energy chairman and chief executive officer. "We're excited about our future,
and we know our customers, employees and shareholders share that excitement."

         Customers of the company's two principal operating subsidiaries,
Detroit Edison and Michigan Consolidated Gas Co. (MichCon), will not see an
immediate impact in services as a result of the merger. Rather, the merger
benefits will become apparent over the next two years as customers of both
utilities ultimately will benefit from one bill for both electric and gas
service, and one telephone number to call for service and other business
matters.

         "By joining the employee skills and resources of both companies, we
will be able to provide customers with a continuing commitment to service
reliability and safety, 'one-stop' customer service and expanded product
offerings," Earley said. "We'll continue to support the economic growth of
Michigan and build upon both companies' records of outstanding community
involvement."



         The merger was consummated after DTE Energy acquired all outstanding
shares of MCN Energy Group for a combination of cash and shares of DTE Energy
common stock. The value of the transaction is approximately $3.9 billion,
including the assumption of MCN's debt.

         DTE Energy will remain headquartered in Detroit and now has more than
11,300 employees, who serve 2.1 million electric customers and 1.2 million
natural gas customers in Michigan. By late summer, the company expects to see
about 800 employees take advantage of an April early-retirement option that is
intended to allow the company to begin realizing synergies achieved by the
merger. DTE Energy is a diversified energy company involved in the development
and management of energy-related business and services nationwide.

         The new company will combine DTE Energy's experience in power plant
operation, coal management and power marketing with MCN's expertise in natural
gas purchasing, transportation, storage and marketing. As a result, DTE Energy
is well positioned to market coal, gas and electricity in the region and to
compete more effectively in the development of new power plants and distributed
generation sources.

         The new DTE Energy has an energy portfolio comprising more than 11,000
megawatts of electric generating capacity, 600 billion cubic feet per year of
natural gas deliveries and 130 billion cubic feet of natural gas storage
capacity, with assets of $9 billion and annual revenue exceeding $8 billion.

         DTE Energy's electric utility, Detroit Edison, and the former MCN
natural gas utility, MichCon, will retain their corporate identities and be
operated as subsidiaries of DTE Energy.

         "Strategically, the fit is perfect," Earley said. "We've brought
together two complementary companies to create an integrated energy company with
a focused strategy and the financial strength, asset mix and scale critical to
growth in a more competitive energy environment. Our combined capabilities will
be leveraged to pursue expansion opportunities in an area spanning the Great
Lakes region to



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the Northeast, which accounts for about half of the nation's total energy
consumption."

         The combined company will have three operating units led by: Gerard M.
Anderson, president and chief operating officer of DTE Energy Resources; Robert
J. Buckler, president and chief operating officer of DTE Energy Distribution;
and Stephen E. Ewing, president and chief operating officer of DTE Gas.

         DTE Energy also plans to expand its board of directors to include:
Alfred R. Glancy III, former MCN Energy Group chairman and chief executive
officer; Frank M. Hennessy, chairman of the board of EMCO, Ltd., of Taylor,
Mich.; and Howard F. Sims, chairman and chief executive officer, SDGdesign,
Inc., of Detroit.

         DTE Energy, already a major corporate citizen in Southeastern Michigan,
will combine the philanthropic work of the Detroit Edison Foundation and the
MichCon Foundation into a new entity that will be called the DTE Energy
Foundation. The new foundation will encompass a leadership role in education,
community development, environmental programs and diversity-focused initiatives.

         Information about DTE Energy is available at http://www.dteenergy.com.

         This press release contains forward-looking statements within the
meaning of The Private Securities Litigation Reform Act of 1995. For a detailed
discussion of the factors that may affect results, see DTE Energy's 2000 Report
on Form 10-K.

Members of the Media - For Further information:
Lorie N. Kessler                                            Lewis K. Layton
(313) 235-8807                                               (313) 235-8809