DTE Energy (DTE) 8-K DTE Energy announces second quarter 2007 earnings

Exhibit 99.2

Second Quarter 2007 Supplemental Financial Information August 13, 2007

DTE Energy Company
Consolidated Statement of Financial Position (unaudited)

	June 30			December 31
	2007			2006
(in Millions)
ASSETS
Current Assets
Cash and cash equivalents	$	993		$	147
Restricted cash		143			146
Accounts receivable (less allowance for doubtful accounts of $179 and $170, respectively)
Customer		1,391			1,427
Customer Collateral held by others		102			68
Other		205			442
Accrued power and gas supply cost recovery revenue		88			117
Inventories
Fuel and gas		530			562
Materials and supplies		180			153
Deferred income taxes		283			245
Assets from risk management and trading activities		273			461
Other		148			193
		4,336			3,961
Investments
Nuclear decommissioning trust funds		794			740
Other		520			505
		1,314			1,245
Property
Property, plant and equipment		19,024			19,224
Less accumulated depreciation and depletion		(7,564	)		(7,773	)
		11,460			11,451
Other Assets
Goodwill		2,043			2,057
Regulatory assets		3,112			3,226
Securitized regulatory assets		1,182			1,235
Intangible assets		72			72
Notes receivable		149			164
Assets from risk management and trading activities		94			164
Prepaid pension assets		75			71
Other		121			139
		6,848			7,128
Total Assets	$	23,958		$	23,785

The Consolidated Statement of Financial Position (Unaudited) should be read in conjunction with the Notes
to Consolidated Financial Statements appearing in Forms 10-K and 10-Q

DTE Energy Company
Consolidated Statement of Financial Position (unaudited)

	June 30			December 31
	2007			2006
(in Millions, Except Shares)
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities
Accounts payable	$	1,344		$	1,145
Accrued interest		116			115
Dividends payable		91			94
Short-term borrowings		801			1,131
Gas inventory equalization		145			—
Current portion of long-term debt, including capital leases		403			354
Liabilities from risk management and trading activities		263			437
Deferred gains from asset sales		288			208
Other		701			680
		4,152			4,164
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other		5,816			5,918
Securitization bonds		1,124			1,185
Trust preferred-linked securities		289			289
Capital lease obligations		75			82
		7,304			7,474
Other Liabilities
Deferred income taxes		1,562			1,465
Regulatory liabilities		808			765
Asset retirement obligations		1,248			1,221
Unamortized investment tax credit		113			120
Liabilities from risk management and trading activities		411			259
Liabilities from transportation and storage contracts		137			157
Accrued pension liability		393			388
Accrued postretirement liability		1,424			1,414
Deferred gains from asset sales		16			36
Nuclear decommissioning		126			119
Other		328			312
		6,566			6,256
Commitments and Contingencies
Minority Interest		47			42
Shareholders’ Equity
Common stock, without par value, 400,000,000 shares authorized, 170,649,715 and 177,138,060 shares issued and outstanding, respectively		3,311			3,467
Retained earnings (less FIN 48 cumulative effect adjustment of $5 in 2007)		2,700			2,593
Accumulated other comprehensive loss		(122	)		(211	)
		5,889			5,849
Total Liabilities and Shareholders’ Equity	$	23,958		$	23,785

DTE Energy Company
Consolidated Statement of Cash Flows (Unaudited)

	Six Months Ended
	June 30
	2007			2006
(in Millions)
Operating Activities
Net Income	$	519		$	103
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		467			446
Deferred income taxes		(4	)		53
Gain on sale of interests in synfuel projects		(77	)		(20	)
Gain on sale of non-utility business		(897	)		—
Other asset (gains), losses and reserves, net		10			2
Impairment of synfuel projects		—			122
Partners’ share of synfuel project losses		(115	)		(180	)
Contributions from synfuel partners		101			129
Cumulative effect of accounting change		—			(1	)
Changes in assets and liabilities, exclusive of changes shown separately		994			260
Net cash from operating activities		998			914
Investing Activities
Plant and equipment expenditures — utility		(480	)		(574	)
Plant and equipment expenditures — non-utility		(141	)		(144	)
Acquisitions, net of cash acquired		—			(27	)
Proceeds from sale of interests in synfuel projects		221			163
Refunds to synfuel partners		(16	)		—
Proceeds from sale of non-utility business		1,258			—
Proceeds from sale of other assets, net		11			34
Restricted cash for debt redemptions		4			(5	)
Proceeds from sale of nuclear decommissioning trust fund assets		124			99
Investment in nuclear decommissioning trust funds		(140	)		(118	)
Other investments		(30	)		(31	)
Net cash from (used for) investing activities		811			(603	)
Financing Activities
Issuance of long-term debt		—			545
Redemption of long-term debt		(111	)		(620	)
Short-term borrowings, net		(330	)		(50	)
Repurchase of common stock		(333	)		(10	)
Dividends on common stock		(187	)		(182	)
Other		(2	)		(6	)
Net cash used for financing activities		(963	)		(323	)
Net Increase (Decrease) in Cash and Cash Equivalents		846			(12	)
Cash and Cash Equivalents at Beginning of the Period		147			88
Cash and Cash Equivalents at End of the Period	$	993		$	76

The Consolidated Statement of Cash Flows (Unaudited) should be read in conjunction with the Notes
to Consolidated Financial Statements appearing in Forms 10-K and 10-Q

The Detroit Edison Company
Consolidated Statement of Operations (unaudited)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2007			2006			2007			2006
Operating Revenues	$	1,210		$	1,175		$	2,304		$	2,225
Operating Expenses
Fuel and purchased power		402			409			756			718
Operation and maintenance		380			369			728			714
Depreciation and amortization		198			168			380			335
Taxes other than income		69			65			141			134
Asset (gains) and reserves, net		(1	)		—			6			—
		1,048			1,011			2,011			1,901
Operating Income		162			164			293			324
Other (Income) and Deductions
Interest expense		75			76			149			148
Interest income		(2	)		(1	)		(3	)		(1	)
Other income		(7	)		(6	)		(18	)		(13	)
Other expenses		6			10			15			20
		72			79			143			154
Income Before Income Taxes		90			85			150			170
Income Tax Provision		30			28			50			55
Income Before Accounting Change		60			57			100			115
Cumulative Effect of Accounting Change		—			—			—			1
Reported Earnings		60			57			100			116
Adjustments
Effective tax rate normalization		1			1			2			1
Regulatory asset surcharge		3			—			6			—
Performance Excellence Process		—			23			—			31
Detroit Thermal Reserve		—			—			6			—
		4			24			14			32
Operating Earnings	$	64		$	81		$	114		$	148

The Consolidated Statement of Operations (Unaudited) should be read in conjunction with the Notes to
Consolidated Financial Statements appearing in Forms 10-K and 10-Q.

MICHIGAN CONSOLIDATED GAS COMPANY
CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)

	Three Months Ended						Six Months Ended
	June 30						June 30
(in Millions)	2007			2006			2007			2006
Operating Revenues	$	305		$	229		$	1,166		$	1,092
Operating Expenses
Cost of gas		158			88			771			712
Operation and maintenance		111			110			220			229
Depreciation and amortization		24			24			45			47
Taxes other than income		15			13			29			28
Asset (gains) and losses, net		—			3			3			3
		308			238			1,068			1,019
Operating Income (Loss)		(3	)		(9	)		98			73
Other (Income) and Deductions
Interest expense		12			15			27			32
Interest income		(5	)		(2	)		(7	)		(4	)
Other income		(2	)		(2	)		(5	)		(4	)
Other expenses		1			—			2			1
		6			11			17			25
Income (Loss) Before Income Taxes		(9	)		(20	)		81			48
Income Tax Provision (Benefit)		(2	)		(7	)		21			11
Reported Earnings (Loss)		(7	)		(13	)		60			37
Adjustments
Effective tax rate normalization		3			2			(2	)		(2	)
Performance Excellence Process		1			2			2			4
		4			4			—			2
Operating Earnings (Loss)	$	(3	)	$	(9	)	$	60		$	39

The Consolidated Statement of operations (Unaudited) should be read in conjunction with the
Notes to Consolidated Financial Statements appearing in Forms 10-K and 10-Q.

DTE Energy Debt/Equity Calculation
As of June 30, 2007
($ millions)

Short-term borrowings	$	801
Current portion of long-term debt, including capital leases		403
Mortgage bonds, notes and other		5,816
Securitization bonds		1,124
Capital lease obligations		75
less MichCon short-term debt		—
less Securitization bonds, including current portion		(1,238	)
Total debt		6,981
Trust preferred-linked securities		289
Total preferred/ other		289
Equity		5,889
Total capitalization	$	13,159
Debt		53.0	%
Preferred		2.2	%
Common shareholders’ equity		44.8	%
Total		100.0	%

Sales Analysis — Q2 2007

Electric Sales — Detroit Edison Service Area (GWh)

	Q2 2007		Q2 2006		% Change
Residential		3,718		3,514		6	%
Commercial		4,871		4,506		8	%
Industrial		3,322		3,209		4	%
Other		804		792		2	%
		12,715		12,021		6	%
Choice*		524		984		-47	%
TOTAL SALES		13,239		13,005		2	%

* Includes Dearborn Industrial Group sales

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

	Q2 2007		Q2 2006		% Change
Residential		398,757		380,178		5	%
Commercial		440,434		411,570		7	%
Industrial		214,972		207,966		3	%
Other		42,914		42,830		0	%
		1,097,077		1,042,544		5	%
Choice*		9,412		22,067		-57	%
TOTAL REVENUES		1,106,489		1,064,611		4	%

* Distribution charge, includes Dearborn Industrial Group revenues

Gas Sales — MichCon Service Area (Mcf)

	Q2 2007		Q2 2006		% Change
Residential		16,260,472		13,361,179		22	%
Commercial		4,868,998		3,747,549		30	%
Industrial		140,387		160,681		-13	%
		21,269,857		17,269,409		23	%
End User Transportation*		23,832,347		27,338,128		-13	%
TOTAL SALES		45,102,204		44,607,537		1	%

* Includes choice customers

Gas Revenue — MichCon Service Area ($000s)

	Q2 2007		Q2 2006		% Change
Residential		189,088		167,356		13	%
Commercial		54,065		45,044		20	%
Industrial		1,445		1,785		-19	%
		244,598		214,185		14	%
End User Transportation*		28,224		26,836		5	%
TOTAL REVENUES		272,822		241,021		13	%

* Includes choice customers

Weather

Cooling Degree Days

Detroit Edison service territory

	Q2 2007			Q2 2006			% Change
Actuals		277			225			23	%
Normal		193			193			n/m
Deviation from normal		43	%		17	%

Heating Degree Days

MichCon service territory

	Q2 2007			Q2 2006			% Change
Actuals		784			683			15	%
Normal		840			853
Deviation from normal		-7	%		-20	%