8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 31, 2009

	Exact Name of Registrant as Specified in its Charter,
Commission	State of Incorporation, Address of Principal Executive	IRS Employer
File Number	Offices and Telephone Number	Identification No.
1-11607	DTE Energy Company (a Michigan corporation) One Energy Plaza Detroit, Michigan 48226-1279 313-235-4000	38-3217752
1-2198	The Detroit Edison Company (a Michigan corporation) One Energy Plaza Detroit, Michigan 48226-1279 313-235-4000	38-0478650

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02. Results of Operations and Financial Condition.

DTE Energy Company is furnishing the Securities and Exchange Commission (“SEC”) with financial information distributed for media and investor relations communications. A copy of the financial information issued July 31, 2009 is furnished as Exhibit 99.1 and incorporated herein by reference.

Item 7.01. Regulation FD Disclosure.

DTE Energy Company is furnishing the SEC with its slide presentation issued July 31, 2009. A copy of the slide presentation is furnished as Exhibit 99.2 and incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1	Financial Information Distributed for Media and Investor Relations Communications dated July 31, 2009.
99.2	Slide Presentation of DTE Energy Company dated July 31, 2009.

Forward-Looking Statements:

This Form 8-K contains forward-looking statements that are subject to various assumptions, risks and uncertainties. It should be read in conjunction with the “Forward-Looking Statements” section in each of DTE Energy’s and Detroit Edison’s 2008 Form 10-K and 2009 Form 10-Q (which sections are incorporated by reference herein), and in conjunction with other SEC reports filed by DTE Energy and Detroit Edison that discuss important factors that could cause DTE Energy’s and Detroit Edison’s actual results to differ materially. DTE Energy and Detroit Edison expressly disclaim any current intention to update any forward-looking statements contained in this report as a result of new information or future events or developments.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

Date: July 31, 2009

DTE ENERGY COMPANY
(Registrant)
 

/s/ Peter B. Oleksiak  

Peter B. Oleksiak 

Vice President and Controller 

THE DETROIT EDISON COMPANY
(Registrant)
 

/s/ Peter B. Oleksiak  

Peter B. Oleksiak 

Vice President and Controller 

EXHIBIT INDEX

Exhibit
Number		Description
	99.1	Financial Information Distributed for Media and Investor Relations Communications dated July 31, 2009.
	99.2	Slide Presentation of DTE Energy Company dated July 31, 2009.

EX-99.1

Exhibit 99.1

DTE Energy Company
Consolidated Statements of Financial Position (Unaudited)

	June 30			December 31
(in Millions)	2009			2008
ASSETS
Current Assets
Cash and cash equivalents	$	42		$	86
Restricted cash		69			86
Accounts receivable (less allowance for doubtful accounts of $293 and $265, respectively)
Customer		1,164			1,666
Other		117			166
Inventories
Fuel and gas		258			333
Materials and supplies		201			206
Deferred income taxes		207			227
Derivative assets		319			316
Other		158			242
		2,535			3,328
Investments
Nuclear decommissioning trust funds		716			685
Other		610			595
		1,326			1,280
Property
Property, plant and equipment		20,359			20,065
Less accumulated depreciation and depletion		(7,966	)		(7,834	)
		12,393			12,231
Other Assets
Goodwill		2,037			2,037
Regulatory assets		4,145			4,231
Securitized regulatory assets		937			1,001
Intangible assets		58			70
Notes receivable		117			115
Derivative assets		155			140
Other		192			157
		7,641			7,751
Total Assets	$	23,895		$	24,590

DTE Energy Company
Consolidated Statements of Financial Position (Unaudited)

	June 30			December 31
(in Millions, Except Shares)	2009			2008
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable	$	611		$	899
Accrued interest		117			119
Dividends payable		87			86
Short-term borrowings		201			744
Current portion long-term debt, including capital leases		167			362
Derivative liabilities		288			285
Other		605			518
		2,076			3,013
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other		6,739			6,458
Securitization bonds		861			932
Trust preferred-linked securities		289			289
Capital lease obligations		54			62
		7,943			7,741
Other Liabilities
Deferred income taxes		2,025			1,958
Regulatory liabilities		1,201			1,202
Asset retirement obligations		1,378			1,340
Unamortized investment tax credit		91			96
Derivative liabilities		269			344
Liabilities from transportation and storage contracts		103			111
Accrued pension liability		798			871
Accrued postretirement liability		1,413			1,434
Nuclear decommissioning		119			114
Other		300			328
		7,697			7,798
Commitments and Contingencies
Shareholders’ Equity
Common stock, without par value, 400,000,000 shares authorized, 164,472,648 and 163,019,596 shares issued and outstanding, respectively		3,214			3,175
Retained earnings		3,072			2,985
Accumulated other comprehensive loss		(145	)		(165	)
Total DTE Energy Company Shareholders’ Equity		6,141			5,995
Noncontrolling interests		38			43
Total Equity		6,179			6,038
Total Liabilities and Equity	$	23,895		$	24,590

DTE Energy Company
Consolidated Statements of Cash Flows (Unaudited)

	Six Months Ended
	June 30
(in Millions)	2009			2008
Operating Activities
Net income	$	263		$	245
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		472			440
Deferred income taxes		88			180
Gain on sale of non-utility assets		—			(128	)
Other asset (gains), losses and reserves, net		3			12
Gain on sale of interests in synfuel projects		—			(15	)
Contributions from synfuel partners		—			30
Changes in assets and liabilities, exclusive of changes shown separately		475			771
Net cash from operating activities		1,301			1,535
Investing Activities
Plant and equipment expenditures — utility		(581	)		(544	)
Plant and equipment expenditures — non-utility		(32	)		(110	)
Proceeds from sale of interests in synfuel projects		—			82
Refunds to synfuel partners		—			(96	)
Proceeds from sale of non-utility assets		—			253
Proceeds from sale of other assets, net		32			16
Restricted cash for debt redemptions		17			54
Proceeds from sale of nuclear decommissioning trust fund assets		182			106
Investment in nuclear decommissioning trust funds		(190	)		(124	)
Other investments		(38	)		(89	)
Net cash used for investing activities		(610	)		(452	)
Financing Activities
Issuance of long-term debt		363			798
Redemption of long-term debt		(355	)		(154	)
Repurchase of long-term debt		—			(238	)
Short-term borrowings, net		(575	)		(984	)
Issuance of common stock		18			—
Repurchase of common stock		—			(16	)
Dividends on common stock		(173	)		(172	)
Other		(13	)		(6	)
Net cash used for financing activities		(735	)		(772	)
Net Increase (Decrease) in Cash and Cash Equivalents		(44	)		311
Cash and Cash Equivalents Reclassified from Assets Held for Sale		—			11
Cash and Cash Equivalents at Beginning of Period		86			123
Cash and Cash Equivalents at End of Period	$	42		$	445

The Detroit Edison Company
Consolidated Statements of Operations (Unaudited)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2009			2008			2009			2008
Operating Revenues	$	1,108		$	1,173		$	2,226		$	2,326
Operating Expenses
Fuel and purchased power		372			415			712			817
Operation and maintenance		306			369			622			727
Depreciation and amortization		197			178			385			370
Taxes other than income		44			60			104			122
		919			1,022			1,823			2,036
Operating Income		189			151			403			290
Other (Income) and Deductions
Interest expense		84			71			163			147
Interest income		(1	)		(1	)		(1	)		(2	)
Other income		(10	)		(11	)		(17	)		(23	)
Other expenses		(12	)		12			—			23
		61			71			145			145
Income Before Income Taxes		128			80			258			145
Income Tax Provision		49			29			101			53
Net Income	$	79		$	51		$	157		$	92

MICHIGAN CONSOLIDATED GAS COMPANY
CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2009			2008			2009			2008
Operating Revenues	$	289		$	381		$	1,048		$	1,277
Operating Expenses
Cost of gas		136			210			639			854
Operation and maintenance		118			149			232			271
Depreciation and amortization		27			25			53			50
Taxes other than income		13			12			26			25
Asset (gains) and losses, net		(1	)		—			(1	)		—
		293			396			949			1,200
Operating Income (Loss)		(4	)		(15	)		99			77
Other (Income) and Deductions
Interest expense		16			14			32			30
Interest income		(2	)		(2	)		(4	)		(4	)
Other income		(2	)		(4	)		(5	)		(6	)
Other expenses		1			2			4			5
		13			10			27			25
Income (Loss) Before Income Taxes		(17	)		(25	)		72			52
Income Tax Provision (Benefit)		(5	)		(8	)		21			15
Net Income (Loss)	$	(12	)	$	(17	)	$	51		$	37

DTE Energy Debt/Equity Calculation
As of June 30, 2009
($ millions)

Short-term borrowings	$	201
Current portion of long-term debt, including capital leases		167
Mortgage bonds, notes and other		6,739
Securitization bonds, excluding current portion		861
Capital lease obligations		54
less MichCon short-term debt		(113	)
less Securitization bonds, including current portion		(996	)
Total debt		6,913
Trust preferred-linked securities		289
Total preferred/ other		289
Equity		6,141
Total capitalization	$	13,343
Debt		51.8	%
Preferred		2.2	%
Common shareholders’ equity		46.0	%
Total		100.0	%

Sales Analysis — Q2 2009

Electric Sales — Detroit Edison Service Area (GWh)

	Q2 2009		Q2 2008		% Change
Residential		3,147		3,428		-8	%
Commercial		4,536		4,913		-8	%
Industrial		2,385		3,231		-26	%
Other		782		787		-1	%
		10,850		12,359		-12	%
Choice		344		296		16	%
TOTAL SALES		11,194		12,655		-12	%

Electric Revenue — Detroit Edison Service Area ($000s)

	Q2 2009		Q2 2008		% Change
Residential		383,943		375,200		2	%
Commercial		419,027		456,612		-8	%
Industrial		183,181		224,016		-18	%
Other		38,109		42,398		-10	%
		1,024,260		1,098,226		-7	%
Choice		8,662		3,694		134	%
TOTAL REVENUES		1,032,922		1,101,920		-6	%

Gas Sales — MichCon Service Area (Mcf)

	Q2 2009		Q2 2008		% Change
Residential		14,068		13,849		2	%
Commercial		3,672		4,160		-12	%
Industrial		140		149		-6	%
		17,880		18,158		-2	%
End User
Transportation*		21,436		22,517		-5	%
TOTAL SALES		39,316		40,675		-3	%

* Includes choice customers

Gas Revenue — MichCon Service Area ($000s)

	Q2 2009		Q2 2008		% Change
Residential		159,471		187,734		-15	%
Commercial		40,820		53,993		-24	%
Industrial		1,173		1,637		-28	%
		201,464		243,364		-17	%
End User
Transportation*		26,897		32,493		-17	%
TOTAL REVENUES		228,361		275,857		-17	%

* Includes choice customers

Weather

Cooling Degree Days
Detroit Edison service territory

	Q2 2009			Q2 2008			% Change
Actuals		154			204			-25	%
Normal		193			193
Deviation from normal		-20	%		6	%

Heating Degree Days
MichCon service territory

	Q2 2009			Q2 2008			% Change
Actuals		827			774			7	%
Normal		865			865
Deviation from normal		-4	%		-11	%

Earnings Impact of Weather
Variance from normal weather ($millions, after-tax)

	Q2 2009			Q2 2008
Detroit Edison		(14	)		(1	)	Colder weather reduced Detroit Edison’s earnings by $14M Q2 2009
MichCon		(1	)		(3	)	Milder weather reduced MichCon’s earnings by $1M Q2 2009

Sales Analysis — YTD June 30, 2009

Electric Sales — Detroit Edison Service Area (GWh)

	YTD 2009		YTD 2008		% Change
Residential		6,885		7,360		-6	%
Commercial		8,959		9,275		-3	%
Industrial		5,022		6,747		-26	%
Other		1,599		1,619		-1	%
		22,465		25,001		-10	%
Choice		661		752		-12	%
TOTAL SALES		23,126		25,753		-10	%

Electric Revenue — Detroit Edison Service Area ($000s)

	YTD 2009		YTD 2008		% Change
Residential		830,966		805,252		3	%
Commercial		829,055		844,167		-2	%
Industrial		380,231		454,889		-16	%
Other		87,023		86,112		1	%
		2,127,275		2,190,420		-3	%
Choice		19,788		15,038		32	%
TOTAL REVENUES		2,147,063		2,205,458		-3	%

Gas Sales — MichCon Service Area (Mcf)

	YTD 2009		YTD 2008		% Change
Residential		64,259		65,587		-2	%
Commercial		20,099		21,854		-8	%
Industrial		735		549		34	%
		85,093		87,990		-3	%
End User
Transportation*		63,041		66,773		-6	%
TOTAL SALES		148,134		154,763		-4	%

* Includes choice customers

Gas Revenue — MichCon Service Area ($000s)

	YTD 2009		YTD 2008		% Change
Residential		646,279		713,205		-9	%
Commercial		200,592		233,273		-14	%
Industrial		6,266		5,916		6	%
		853,137		952,394		-10	%
End User
Transportation*		79,253		82,937		-4	%
TOTAL REVENUES		932,390		1,035,331		-10	%

* Includes choice customers

Weather

Cooling Degree Days
Detroit Edison service territory

	YTD 2009			YTD 2008			% Change
Actuals		154			204			-25	%
Normal		193			193
Deviation from normal		-20	%		6	%

Heating Degree Days
MichCon service territory

	YTD 2009			YTD 2008			% Change
Actuals		4,224			4,155			2	%
Normal		4,171			4,199
Deviation from normal		1	%		-1	%

Earnings Impact of Weather
Variance from normal weather ($millions, after-tax)

	YTD 2009			YTD 2008
Detroit Edison		(12	)		—		Colder weather reduced Detroit Edison’s earnings by $12M YTD 2009
MichCon		1			(2	)	Colder weather increased MichCon’s earnings by $1M YTD 2009

DTE Energy Company
Reconciliation of Reported Earnings to Operating Earnings (Unaudited)

	Three Months Ended
	June 30, 2009
	Reported			Operating			Operating
(in Millions)	Earnings			Adjustments			Earnings
Operating Revenues	$	1,688					$	1,688
Operating Expenses
Fuel, purchased power and gas		577						577
Operation and maintenance		595			(14	)		581
Depreciation, depletion and amortization		240						240
Taxes other than income		61						61
Gain on sale of non-utility assets		—						—
Other asset (gains) and losses, reserves and impairments, net		—						—
		1,473			(14	)		1,459
Operating Income		215			14			229
Other (Income) and Deductions
Interest expense		134						134
Interest income		(3	)					(3	)
Other income		(22	)		(2	)		(24	)
Other expenses		(5	)					(5	)
		104			2			106
Income Before Income Taxes		111			16			127
Income Tax Provision		27			7			34
Income from Continuing Operations		84			9			93
Discontinued Operations Income, net of tax		—						—
Net Income		84			9			93
Less: Net Income Attributable to the Noncontrolling Interests From
Continuing operations		1						1
Discontinued operations		—						—
		1						1
Net Income Attributable to DTE Energy Company	$	83		$	9		$	92

DTE Energy Company
Reconciliation of Reported Earnings to Operating Earnings (Unaudited)

	Six Months Ended
	June 30, 2009
	Reported			Operating			Operating
(in Millions)	Earnings			Adjustments			Earnings
Operating Revenues	$	3,943					$	3,943
Operating Expenses
Fuel, purchased power and gas		1,537						1,537
Operation and maintenance		1,186			(14	)		1,172
Depreciation, depletion and amortization		472						472
Taxes other than income		141						141
Gain on sale of non-utility assets		—						—
Other asset (gains) and losses, reserves and impairments, net		(3	)					(3	)
		3,333			(14	)		3,319
Operating Income		610			14			624
Other (Income) and Deductions
Interest expense		266						266
Interest income		(6	)					(6	)
Other income		(46	)		(2	)		(48	)
Other expenses		9						9
		223			2			225
Income Before Income Taxes		387			16			403
Income Tax Provision		124			7			131
Income from Continuing Operations		263			9			272
Discontinued Operations Income, net of tax		—						—
Net Income		263			9			272
Less: Net Income Attributable to the Noncontrolling Interests From
Continuing operations		2						2
Discontinued operations		—						—
		2						2
Net Income Attributable to DTE Energy Company	$	261		$	9		$	270

EX-99.2

Exhibit 99.2

Business and Financial Update July 31, 2009

2 Safe Harbor Statement The information contained herein is as of the date of this presentation. Many factors may impact forward-looking statements including, but not limited to, the following: the length and severity of ongoing economic decline; changes in the economic and financial viability of our customers, suppliers, and trading counterparties, and the continued ability of such parties to perform their obligations to the Company; high levels of uncollectible accounts receivable; access to capital markets and capital market conditions and the results of other financing efforts which can be affected by credit agency ratings; instability in capital markets which could impact availability of short and long-term financing; potential for continued loss on investments, including nuclear decommissioning and benefit plan assets; the timing and extent of changes in interest rates; the level of borrowings; the availability, cost, coverage and terms of insurance and stability of insurance providers; the effects of weather and other natural phenomena on operations and sales to customers, and purchases from suppliers; economic climate and population growth or decline in the geographic areas where we do business; environmental issues, laws, regulations, and the increasing costs of remediation and compliance, including actual and potential new federal and state requirements that could include carbon and more stringent mercury emission controls, a renewable portfolio standard, energy efficiency mandates, and a carbon tax or cap and trade structure; nuclear regulations and operations associated with nuclear facilities; impact of electric and gas utility restructuring in Michigan, including legislative amendments and Customer Choice programs; employee relations and the impact of collective bargaining agreements; unplanned outages; changes in the cost and availability of coal and other raw materials, purchased power and natural gas; the effects of competition; the uncertainties of successful exploration of gas shale resources and challenges in estimating gas reserves with certainty; impact of regulation by the FERC, MPSC, NRC and other applicable governmental proceedings and regulations, including any associated impact on rate structures; changes in and application of federal, state and local tax laws and their interpretations, including the Internal Revenue Code, regulations, rulings, court proceedings and audits; the ability to recover costs through rate increases; the cost of protecting assets against, or damage due to, terrorism; changes in and application of accounting standards and financial reporting regulations; changes in federal or state laws and their interpretation with respect to regulation, energy policy and other business issues; and binding arbitration, litigation and related appeals. New factors emerge from time to time. We cannot predict what factors may arise or how such factors may cause our results to differ materially from those contained in any forward- looking statement. Any forward-looking statements refer only as of the date on which such statements are made. We undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made or to reflect the occurrence of unanticipated events. This presentation should also be read in conjunction with the "Forward-Looking Statements" section in each of DTE Energy's and Detroit Edison's 2008 Forms 10-K and 2009 Forms 10-Q (which sections are incorporated herein by reference), and in conjunction with other SEC reports filed by DTE Energy and Detroit Edison. Cautionary Note - The Securities and Exchange Commission permits oil and gas companies, in their filings with the SEC, to disclose only proved reserves that a company has demonstrated by actual production or conclusive formation tests to be economically and legally producible under existing economic and operating conditions. We use certain terms in this presentation such as "probable reserves" that the SEC's guidelines strictly prohibit us from including in filings with the SEC. You are urged to consider closely the disclosure in DTE's 2008 Form 10-K, File No. 1-11607, available from our offices or from our website at www.dteenergy.com. You can also obtain this Form from the SEC by calling 1-800-SEC-0330.

3 Participants Dave Meador, Executive Vice President and CFO Peter Oleksiak, Vice President and Controller Nick Khouri, Vice President and Treasurer Lisa Muschong, Director of Investor Relations

4 Overview 2nd Quarter 2009 Earnings Results Cash Flow and Capital Expenditures Summary

2009 Overview 5 Overall, 2009 earnings and cash flow remain on track to our plan Continuous improvement initiatives continue to produce ongoing cost savings Continued pressure on Detroit Edison sales volumes Additional one-time cost savings helping offset weak demand prior to self implementation Detroit Edison self implemented rates on July 26th Minimal accounts receivable impact from rapid auto bankruptcies Strong Energy Trading results for the quarter and YTD Slowdown in steel industry impacting Power & Industrial Projects and utility sales Strong cash flow and liquidity YTD 2009 Continue to make investments to support future growth Solid Q2 2009 Results

Continuous improvement initiatives are driving ongoing cost savings Additional one-time cost savings have helped offset weak demand prior to self implementation Strong YTD results at Energy Trading 2009 Operating Earnings Guidance Remains on Track * Reconciliation to GAAP reported earnings included in the appendix 2009 Operating Earnings* Guidance ($ millions, except EPS) 6 2009 Guidance YTD 2009 Actual Earnings Drivers for Remainder of 2009 Solid YTD 2009 Results Lower than anticipated sales volumes at Detroit Edison $280 million self implementation at Detroit Edison Summer weather impacts Lower coke volumes at Power & Industrial

Detroit Edison 2009 Operating Earnings Drivers* * Reconciliation to GAAP reported earnings included in the appendix Assumptions ($ millions) 2008 Operating Earnings ($15) ($125) $331 2009 Operating Guidance $355-385 Economy Ongoing O&M Cost Savings $261 2008 Rate Orders Pension & Healthcare 8% sales reduction year over year Higher pension and healthcare expenses Higher interest expense related to higher long-term debt balance 2008 rate orders include December 2008 rate order and expiration of April 2008 show-cause rate reduction Ongoing O&M savings driven by continuous improvement initiatives One-time O&M savings include employee benefit reductions Other one-time savings include property tax settlement and one-time reductions not included in O&M July 2009 self implementation of $280 million rate increase $65 9.6% ROE 10.0% ROE 7 Weather One-Time O&M Cost Savings 7.0% ROE ($35) $50 $35 ($25) Interest Expense/Other 2009 Self Implement $75 Subtotal $15 Other One-Time Savings

8 Energy Trading 2009 Operating Earnings* ($ millions) * Reconciliation to GAAP reported earnings included in the appendix Strong YTD Energy Trading results Risk metrics and controls remain in line with prior years Projecting 2009 operating earnings will exceed guidance; earnings are more heavily loaded in first 6 months of the year Longer term we continue to target $40 - $50 million in annual operating earnings from Energy Trading $53 $43 $40 - $45 $67 Energy Trading Operating Earnings*

9 Overview 2nd Quarter 2009 Earnings Results Cash Flow and Capital Expenditures Summary

10 2nd Quarter 2009 Operating Earnings Per Share* Detroit Edison $0.50 Unconventional Gas Production ($0.01) Non-Utility $0.20 Gas Midstream $0.06 Corporate & Other ($0.05) MichCon** ($0.09) $0.56 Power and Industrial Projects ($0.01) * Reconciliation to GAAP reported earnings included in the appendix ** Includes Citizens Gas Utility Energy Trading $0.16

Increased pipeline revenues at Gas Midstream Lower coke sales at Power & Industrial (P&I) Q2 2008 depreciation catch-up for P&I assets that had been held for sale ($10M after-tax) Lower commodity prices in 2009 for Unconventional Gas Mark-to-market accounting losses in Q2 2008 and favorable taxes Q2 2009 at Energy Trading 11 2nd Quarter 2009 Operating Earnings Variance December 2008 rate order and O&M cost reductions partially offset by decreased sales volumes and cooler weather Drivers * Reconciliation to GAAP reported earnings included in the appendix Detroit Edison MichCon O&M cost reductions offset by customer conservation, increased depreciation expense and higher interest expense Operating Earnings* ($ millions, except EPS) 2Q 2008 2Q 2009 Change Non-Utility

12 Detroit Edison Variance Analysis * Reconciliation to GAAP reported earnings included in the appendix 2Q 2008 Operating Earnings ($13) ($34) $51 2Q 2009 Operating Earnings Economy $11 ($ millions) Detroit Edison Operating Earnings* Variance Drivers $83 Temperature-normal sales down 9% Cooler weather Q2 2009 December 2008 rate order and expiration of temporary rate reduction from show-cause settlement O&M driven by continuous improvement initiatives, intra-year timing of maintenance activities and one-time cost reduction efforts partially offset by higher benefit expense Catastrophic storm Q2 2008 Other primarily driven by a property tax settlement in Q2 2009 and other one-time reductions, partially offset by higher interest expense Rate Increase $35 O&M Other $8 Weather 2008 Storm $25

Detroit Edison Sales Volumes 13 Temperature normal sales volumes down 9% Q2 2009, which was a sharper downturn than anticipated Projecting 8% annual load loss for 2009; versus 6% prior projection Additional load loss heavily driven by reduced sales to lower margin industrial customers Service Area Sales Volume Temperature Normalized (GWh)

14 MichCon Variance Analysis Seasonal second quarter loss is typical Margin driven by customer conservation and higher lost and stolen gas O&M driven by continuous improvement initiatives and one- time cost reduction efforts partially offset by higher benefit expense Other primarily driven by higher depreciation and interest expense driven by increased asset base in 2009 ($ millions) MichCon Operating Earnings* Variance Drivers ($11) ($2) * Reconciliation to GAAP reported earnings included in the appendix ($5) ($15) $3 Margin O&M 2Q 2009 Operating Earnings 2Q 2008 Operating Earnings Other

2009 Utility O&M Expense* Significant increase in pension and healthcare expense (related to asset returns) Increases are more than offset by continuous improvement actions of $100 million and one-time cost savings of $30 million ($ millions) * Excludes bad debt expense and Energy Optimization Pension, healthcare, environmental and other costs 15 Utility O&M Expected to be Down $65 Million from 2008 Continuous Improvement and one-time cost savings Detroit Edison MichCon Total Utility Total Pre-Tax Continuous Improvement $50 $10 $60 $100 One-Time Savings 15 5 20 30 Savings Subtotal $65 $15 $80 $130 Pension / Healthcare (35) (5) (40) (65) Net O&M Savings $30 $10 $40 $65 2009 O&M Savings ($ millions, after-tax)

16 Overview 2nd Quarter 2009 Earnings Results Cash Flow and Capital Expenditures Summary

17 YTD June 2009 Cash Flow * Reconciliation to GAAP reported cash flow included in the appendix DTE Energy Cash Flow ($ billions) Drivers Free cash flow reached ~$700 million YTD 2009 Free cash flow is down from 2008 due to the phasing out of synfuel cash; 2008 net cash was enhanced by sale of Barnett properties YTD 2009 cash driven by intra-year timing Total debt pay down of $600 million YTD 2009; however, will partially reverse in remaining quarters Over $1.6 billion of available liquidity as of 6/30/2009

18 YTD June 2009 Capital Expenditures DTE Energy Capital Expenditures ($ millions) Drivers Detroit Edison increase driven by higher planned spring outages for fossil generation fleet and nuclear refueling MichCon decrease driven by lower routine capital and completion of storage expansion project in 2008 Lower non-utility spending driven by acquisition of a coke battery in 2008 and Unconventional Gas drilling Full year 2009 capital spending expected to decline ~20% from 2008

19 Overview 2nd Quarter 2009 Earnings Results Cash Flow and Capital Expenditures Summary

20 Constructive regulatory environment Realistic 2009 Plan Managing economic risk Investment opportunities support long term growth Well supported dividend DTE Energy: A Focused, Integrated Energy Strategy Save the Date: October 19th - DTE Energy Analyst Meeting

21 Contact Us DTE Energy Investor Relations www.dteenergy.com/investors 313-235-8030

Appendix

DTE Energy Trading Reconciliation of Operating Earnings* to Economic Net Income ** Consists of the income statement effect of not recognizing changes in the fair market value of certain non-derivative contracts including physical inventory and capacity contracts for transportation, transmission and storage. These contracts are not MTM, instead are recognized for accounting purposes on an accrual basis. ($ millions) YTD 06/30/09 Economic Net Income EITF 02-3** YTD 06/30/09 Operating Earnings* $67 ($13) $54 Economic net income equals economic gross margin*** minus O&M expenses and taxes. DTE Energy management uses economic net income as one of the performance measures for external communications with analysts and investors. Internally, DTE Energy uses economic net income as one of the measures to review performance against financial targets and budget. * Reconciliation to GAAP reported earnings included in the appendix *** Economic gross margin is the change in net fair value of realized and unrealized purchase and sale contracts including certain non-derivative contract costs 23 Energy Trading Q2 Operating Earnings* Realized Unrealized O&M / Other 2008 2009 $17 $8 25 (10) (17) (6) ($ millions, after-tax) $(10) $27 Energy Trading YTD Operating Earnings* Realized Unrealized O&M / Other 2008 2009 $54 $27 60 (6) (28) (20) ($ millions, after-tax) $20 $67 EITF 02-3** $20 $37 $57 YTD 06/30/08 Operating Earnings* YTD 06/30/08 Economic Net Income

Auto Bankruptcy Impacts 24 GM $15 - $20 $4 Chrysler 6 - 12 5 Key Automotive Suppliers 5 - 10 2 - 5 $26 - $42 $11 - $14 DTE Energy Receivables Exposure (after-tax)* ($ millions) Prior Estimated Exposure Current Estimated Exposure * These after-tax income impacts are considered non-recurring, one-time events and are classified as non-operating income adjustments

Net Production Rate (Mmcfe/day) Gross Producing Wells 166 Reserves (Bcfe) Acreage Position (000's Acres) Net Undeveloped Acres Net Developed Acres Barnett Shale Operating Metrics 15 6/30/09 45 60 14 46 YE2008 60 6/30/09 YE2008 156 16 6/30/09 YE2008 16 25 YE2008 YE2007 Probable Proven 192 144 336 265 167 432 Continue to prudently manage and develop Barnett assets Invest $20 - $25M Drill 10 - 15 wells Produce 5 - 6 Bcfe net Focus on cost reduction & production optimization Drilled 6 new wells Net Production of 2.7 Bcfe Capital Expenditures $12 million 2009 YTD Results 2009 Goals

DTE Energy - Liquidity Summary 26 As of 6/30/09 ($ millions) * Includes $150 million of bilateral bank loans Available Liquidity

27 2009 Capital & Cash Flow Guidance Capital Summary ($ millions) * Reconciliation to GAAP reported cash flow included in the appendix Cash Flow Summary ($ billions) Plan to issue $60 - $80 million of equity in 2009 to fund Dividend Reinvestment and employee benefit programs *

28 Reconciliation of 2Q 2009 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors.

Reconciliation of 2Q 2008 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors. 29

30 Reconciliation of YTD 2009 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors.

31 Reconciliation of YTD 2008 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors.

32 Reconciliation of 2008 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors.

Reconciliation of 2007 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors. 33

34 Reconciliation of 2009 Reported to Operating Earnings Use of Operating Earnings Information - DTE Energy management believes that operating earnings provide a more meaningful representation of the company's earnings from ongoing operations and uses operating earnings as the primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses operating earnings to measure performance against budget and to report to the Board of Directors. In this presentation, DTE Energy provides 2009 guidance for operating earnings. It is likely that certain items that impact the company's 2009 reported results will be excluded from operating results. A reconciliation to the comparable 2009 reported earnings/net income guidance is not provided because it is not possible to provide a reliable forecast of specific line items. These items may fluctuate significantly from period to period and may have a significant impact on reported earnings.

35 Reconciliation of Cash from Operations to Adjusted Cash from Operations * accounted for in the investing activities section of the statement of cash flows Adjusted Cash From Operations Use of Adjusted Cash From Operations - DTE Energy management believes that adjusted cash from operations provide a more meaningful representation of the company's cash from ongoing operations and uses adjusted cash from operations as a primary performance measurement for external communications with analysts and investors. Internally, DTE Energy uses adjusted cash from operations to measure performance against budget and to report to the Board of Directors.