DTE Energy (DTE) 8-K DTE Energy reports second quarter 2006 earnings; Maintains 2006 earnings guidance

Exhibit 99.2

Q2 2006 Supplemental Financial Information July 27, 2006

DTE Energy Company
Consolidated Statement of Financial Position

	(Unaudited)
	June 30			December 31
	2006			2005
(in Millions)
ASSETS
Current Assets
Cash and cash equivalents	$	76		$	88
Restricted cash		127			122
Accounts receivable
Customer (less allowance for doubtful accounts of $169 and $136, respectively)		1,203			1,746
Collateral held by others		102			286
Other		295			363
Accrued power and gas supply cost recovery revenue		214			186
Inventories
Fuel and gas		516			522
Materials and supplies		149			146
Deferred income taxes		70			257
Assets from risk management and trading activities		618			806
Other		156			160
		3,526			4,682
Investments
Nuclear decommissioning trust funds		679			646
Other		537			530
		1,216			1,176
Property
Property, plant and equipment		18,661			18,660
Less accumulated depreciation and depletion		(7,603	)		(7,830	)
		11,058			10,830
Other Assets
Goodwill		2,057			2,057
Regulatory assets		2,063			2,074
Securitized regulatory assets		1,289			1,340
Notes receivable		241			409
Assets from risk management and trading activities.		327			316
Prepaid pension assets		187			186
Other		256			265
		6,420			6,647
Total Assets	$	22,220		$	23,335

DTE Energy Company
Consolidated Statement of Financial Position

	(Unaudited)
	June 30			December 31
	2006			2005
(in Millions, Except Shares)
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities
Accounts payable	$	1,004		$	1,187
Accrued interest		114			115
Dividends payable		92			92
Short-term borrowings		790			943
Gas inventory equalization		52			—
Current portion of long-term debt, including capital leases		183			691
Liabilities from risk management and trading activities		539			1,089
Other		880			803
		3,654			4,920
Other Liabilities
Deferred income taxes		1,293			1,396
Regulatory liabilities		741			715
Asset retirement obligations		1,129			1,091
Unamortized investment tax credit		125			131
Liabilities from risk management and trading activities		477			527
Liabilities from transportation and storage contracts		297			317
Accrued pension liability		342			284
Deferred gains from asset sales		82			188
Minority interest		43			92
Nuclear decommissioning		90			85
Other		717			740
		5,336			5,566
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other		5,728			5,234
Securitization bonds		1,238			1,295
Equity-linked securities		175			175
Trust preferred-linked securities		289			289
Capital lease obligations		85			87
		7,515			7,080
Shareholders’ Equity
Common stock, without par value, 400,000,000 shares authorized, 177,761,367 and 177,814,429 shares issued and outstanding, respectively		3,468			3,483
Retained earnings		2,478			2,557
Accumulated other comprehensive loss		(231	)		(271	)
		5,715			5,769
Total Liabilities and Shareholders’ Equity	$	22,220		$	23,335

DTE Energy Company
Consolidated Statement of Cash Flows (Unaudited)

	Six Months Ended
	June 30
	2006			2005
(in Millions)
Operating Activities
Net Income	$	103		$	151
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		446			424
Deferred income taxes		53			65
Gain on sale of interests in synfuel projects		(20	)		(100	)
Loss on sale of assets, net		2			3
Impairment of synfuel projects		122			—
Partners’ share of synfuel project losses		(180	)		(149	)
Contributions from synfuel partners		129			113
Changes in assets and liabilities, exclusive of changes shown separately		219			172
Net cash from operating activities		874			679
Investing Activities
Plant and equipment expenditures — utility		(552	)		(372	)
Plant and equipment expenditures — non-utility		(145	)		(58	)
Acquisitions, net of cash acquired		(27	)		—
Proceeds from sale of interests in synfuel projects		182			145
Proceeds from sale of other assets		34			18
Restricted cash for debt redemptions		(5	)		19
Proceeds from sale of nuclear decommissioning trust fund assets		99			112
Investment in nuclear decommissioning trust funds		(118	)		(130	)
Other investments		(31	)		(38	)
Net cash used for investing activities		(563	)		(304	)
Financing Activities
Issuance of long-term debt		545			395
Redemption of long-term debt		(620	)		(639	)
Short-term borrowings, net		(50	)		91
Repurchase of common stock		(10	)		(11	)
Dividends on common stock		(182	)		(179	)
Other		(6	)		(2	)
Net cash used for financing activities		(323	)		(345	)
Net Increase (Decrease) in Cash and Cash Equivalents		(12	)		30
Cash and Cash Equivalents at Beginning of the Period		88			56
Cash and Cash Equivalents at End of the Period	$	76		$	86

The Detroit Edison Company
Consolidated Statement of Operations (unaudited)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2006			2005			2006			2005
Operating Revenues	$	1,175		$	1,035		$	2,225		$	2,025
Operating Expenses
Fuel and purchased power		409			343			718			644
Operation and maintenance		369			330			713			651
Depreciation and amortization		168			160			335			310
Taxes other than income		65			63			134			132
		1,011			896			1,900			1,737
Operating Income		164			139			325			288
Other (Income) and Deductions
Interest expense		76			69			148			133
Interest income		(1	)		—			(1	)		(1	)
Other income		(6	)		(7	)		(13	)		(13	)
Other expenses		10			13			20			25
		79			75			154			144
Income Before Income Taxes		85			64			171			144
Income Tax Provision		28			21			55			46
Reported Earnings	$	57		$	43		$	116		$	98
Adjustments
Performance Excellence Process		23			—			31			—
Incremental non-recurring DTE2 project costs		—			3			—			5
Effective tax rate normalization		1			—			1			—
		24			3			32			5
Operating Earnings	$	81		$	46		$	148		$	103

The Consolidated Statement of Operations (Unaudited) should be read in conjunction with the Notes to Consolidated Financial Statements appearing in the Annual Report to Shareholders, Form 10K and 10Q.

Michigan Consolidated Gas Company
Consolidated Statement of Operations (unaudited)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2006			2005			2006			2005
Operating Revenues	$	229		$	261		$	1,092		$	1,095
Operating Expenses
Cost of gas		88			131			712			758
Operation and maintenance		110			96			229			215
Depreciation and amortization		24			24			47			50
Taxes other than income		13			13			28			26
Asset (gains) and losses, net		3			—			3			48
		238			264			1,019			1,097
Operating Income (Loss)		(9	)		(3	)		73			(2	)
Other (Income) and Deductions
Interest expense		15			13			32			28
Interest income		(2	)		(3	)		(4	)		(5	)
Other income		(2	)		—			(4	)		(2	)
Other expenses		—			—			1			2
		11			10			25			23
Income (Loss) Before Income Taxes		(20	)		(13	)		48			(25	)
Income Tax Provision (Benefit)		(7	)		37			11			38
Reported Earnings (Loss)	$	(13	)	$	(50	)	$	37		$	(63	)
Adjustments
Effective tax rate normalization		2			43			(2	)		51
Performance Excellence Process		2			—			4			—
Incremental non-recurring DTE2 project costs.		—			2			—			2
April 2005 MPSC gas orders		—			4			—			57
		4			49			2			110
Operating Earnings (Loss)	$	(9	)	$	(1	)	$	39		$	47

The Consolidated Statement of Operations (Unaudited) should be read in conjunction with the Notes to Consolidated Financial Statements appearing in the Annual Report to Shareholders, Form 10K and 10Q.

DTE Energy Debt/Equity Calculation

As of June 30, 2006

($ millions)

Short-term borrowings	790
Current portion of long-term debt, including capital leases	183
Mortgage bonds, notes and other	5,728
Securitization bonds	1,238
Capital lease obligations	85
Equity-linked securities	175
less MichCon short-term debt	(122	)
less Securitization bonds, including current portion	(1,345	)
Total debt	6,732
Trust preferred-linked securities	289
Total preferred/ other	289
Equity	5,715
Total capitalization	12,736
Debt	52.9	%
Preferred	2.3	%
Common shareholders’ equity	44.9	%
Total	100.0	%

Sales Analysis — Q2 2006

Electric Sales — Detroit Edison Service Area (GWh)

	Q2 2006		Q2 2005		% Change
Residential		3,514		3,766		-7	%
Commercial		4,506		3,820		18	%
Industrial		3,209		3,024		6	%
Other		792		646		23	%
		12,021		11,256		7	%
Interconnection		570		1,141		-50	%
Choice*		984		1,996		-51	%
TOTAL SALES		13,575		14,393		-6	%

* Includes Dearborn Industrial Group sales

Gas Sales — MichCon Service Area (Mcf)

	Q2 2006		Q2 2005		% Change
Residential		13,361,179		16,509,131		-19	%
Commercial		3,747,549		5,017,774		-25	%
Industrial		160,681		306,601		-48	%
		17,269,409		21,833,506		-21	%
End User Transportation*		27,338,128		32,628,790		-16	%
TOTAL SALES		44,607,537		54,462,296		-18	%

* Includes choice customers

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

	Q2 2006		Q2 2005		% Change
Residential		380,178		338,297		12	%
Commercial		411,570		326,309		26	%
Industrial		207,966		166,384		25	%
Other		42,830		30,730		39	%
		1,042,544		861,720		21	%
Interconnection		34,487		76,490		-55	%
Choice*		22,967		39,180		-41	%
TOTAL REVENUES		1,099,998		977,390		13	%

* Distribution charge, includes Dearborn Industrial Group revenues

Gas Revenue — MichCon Service Area ($000s)

	Q2 2006		Q2 2005		% Change
Residential		167,355		185,175		-10	%
Commercial		45,044		54,235		-17	%
Industrial		1,785		3,082		-42	%
		214,184		242,492		-12	%
End User Transportation*		26,837		27,861		-4	%
TOTAL REVENUES		241,021		270,353		-11	%

* Includes choice customers

Weather

Cooling Degree Days

Detroit Edison service territory

	Q2 2006			Q2 2005			% Change
Actuals		225			301			-25	%
Normal		193			193
Deviation from normal		17	%		56	%

Heating Degree Days

MichCon service territory

	Q2 2006			Q2 2005			% Change
Actuals		683			757			-10	%
Normal		853			860
Deviation from normal		-20	%		-12	%