DTE Energy (DTE) 8-K DTE Energy announces first quarter 2007 earnings; maintains 2007 earnings guidance

Exhibit 99.2

First Quarter 2007 Supplemental Financial Information May 2, 2007

DTE Energy Company
Consolidated Statement of Financial Position

	(Unaudited)
	March 31			December 31
	2007			2006
(in Millions)
ASSETS
Current Assets
Cash and cash equivalents	$	144		$	147
Restricted cash		90			146
Accounts receivable (less allowance for doubtful accounts of $178 and $170, respectively
Customer		1,517			1,427
Collateral held by others		65			68
Other		255			442
Accrued power and gas supply cost recovery revenue		92			117
Inventories
Fuel and gas		410			562
Materials and supplies		159			153
Deferred income taxes		236			245
Assets from risk management and trading activities		395			461
Other		177			193
		3,540			3,961
Investments
Nuclear decommissioning trust funds		759			740
Other		503			505
		1,262			1,245
Property
Property, plant and equipment		19,490			19,224
Less accumulated depreciation and depletion		(7,869	)		(7,773	)
		11,621			11,451
Other Assets
Goodwill		2,057			2,057
Regulatory assets		3,194			3,226
Securitized regulatory assets		1,208			1,235
Intangible assets		89			72
Notes receivable		143			164
Assets from risk management and trading activities		119			164
Prepaid pension assets		72			71
Other		131			139
		7,013			7,128
Total Assets	$	23,436		$	23,785

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

DTE Energy Company
Consolidated Statement of Financial Position

	(Unaudited)
	March 31			December 31
	2007			2006
(in Millions, Except Shares)
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current Liabilities
Accounts payable	$	1,051		$	1,145
Accrued interest		97			115
Dividends payable		94			94
Short-term borrowings		946			1,131
Gas inventory equalization		278			—
Current portion of long-term debt, including capital leases		372			354
Liabilities from risk management and trading activities		392			437
Other		757			888
		3,987			4,164
Long-Term Debt (net of current portion)
Mortgage bonds, notes and other		5,885			5,918
Securitization bonds		1,124			1,185
Trust preferred-linked securities		289			289
Capital lease obligations		80			82
		7,378			7,474
Other Liabilities
Deferred income taxes		1,450			1,465
Regulatory liabilities		784			765
Asset retirement obligations		1,239			1,221
Unamortized investment tax credit		117			120
Liabilities from risk management and trading activities		200			259
Liabilities from transportation and storage contracts		142			157
Accrued pension liability		388			388
Accrued postretirement liability		1,420			1,414
Deferred gains from asset sales		18			36
Nuclear decommissioning		122			119
Other		331			312
		6,211			6,256
Commitments and Contingencies
Minority Interest		44			42
Shareholders’ Equity
Common stock, without par value, 400,000,000 shares authorized, 176,064,812 and 177,138,060 shares issued and outstanding, respectively		3,440			3,467
Retained earnings (less FIN 48 cumulative effect adjustment of $5 in 2007)		2,602			2,593
Accumulated other comprehensive loss		(226	)		(211	)
		5,816			5,849
Total Liabilities and Shareholders’ Equity	$	23,436		$	23,785

DTEEnergy Company
Consolidated Statement of Cash Flows (Unaudited)

	Three Months Ended
	March 31
(in Millions)	2007			2006
Operating Activities
Net Income	$	134		$	136
Adjustments to reconcile net income to net cash from operating activities:
Depreciation, depletion and amortization		225			225
Deferred income taxes		(6	)		64
Gain on sale of interests in synfuel projects		(52	)		(21	)
Impairment of synfuel projects		16			—
Loss on sale of assets, net		11			—
Partners’ share of synfuel project losses		(59	)		(71	)
Contributions from synfuel partners		36			70
Cumulative effect of accounting changes		—			(1	)
Change in assets and liabilities, exclusive of changes shown separately		327			211
Net cash from operating activities		632			613
Investing Activities
Plant and equipment expenditures – utility		(306	)		(264	)
Plant and equipment expenditures – non-utility		(69	)		(71	)
Acquisitions, net of cash acquired		—			(23	)
Proceeds from sale of interests in synfuel projects		113			72
Refunds to synfuel partners		(8	)		—
Proceeds from sale of assets, net		5			29
Restricted cash for debt redemptions		57			23
Proceeds from sale of nuclear decommissioning trust fund assets		57			37
Investment in nuclear decommissioning trust funds		(66	)		(47	)
Other investments		(7	)		(16	)
Net cash used for investing activities		(224	)		(260	)
Financing Activities
Redemption of long-term debt		(77	)		(70	)
Short-term borrowings, net		(185	)		(193	)
Repurchase of common stock		(55	)		(8	)
Dividends on common stock		(94	)		(91	)
Other		—			(4	)
Net cash used for financing activities		(411	)		(366	)
Net Decrease in Cash and Cash Equivalents		(3	)		(13	)
Cash and Cash Equivalents at Beginning of the Period		147			88
Cash and Cash Equivalents at End of the Period	$	144		$	75

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

The Detroit Edison Company
Consolidated Statement of Operations (unaudited)

	Three Months Ended
	March 31
(in Millions)	2007			2006
Operating Revenues	$	1,094		$	1,050
Operating Expenses
Fuel and purchased power		354			309
Operation and maintenance		348			344
Depreciation and amortization		182			167
Taxes other than income		72			69
Asset (gains) and losses, net		7			—
		963			889
Operating Income		131			161
Other (Income) and Deductions
Interest expense		74			72
Interest income		(1	)		—
Other income		(11	)		(7	)
Other expenses		9			10
		71			75
Income Before Income Taxes		60			86
Income Tax Provision		20			27
Reported Earnings	$	40		$	59
Adjustments
Effective tax rate normalization		2			—
Detroit Thermal reserve		6			—
Performance Excellence Process		—			8
		8			8
Operating Earnings	$	48		$	67

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

Michigan Consolidated Gas Company
Consolidated Statement of Operations (unaudited)

	Three Months Ended March 31
(in Millions)	2007			2006
Operating Revenues	$	861		$	863
Operating Expenses
Cost of gas		613			624
Operation and maintenance		109			119
Depreciation and amortization		21			23
Taxes other than income		15			15
Asset (gains) and losses, net		2			—
		760			781
Operating Income		101			82
Other (Income) and Deductions
Interest expense		15			17
Interest income		(2	)		(2	)
Other income		(3	)		(2	)
Other expenses		1			1
		11			14
Income Before Income Taxes		90			68
Income Tax Provision		23			18
Reported Earnings	$	67		$	50
Adjustments
Effective tax rate normalization		(6	)		(4	)
Performance Excellence Process		1			2
		(5	)		(2	)
Operating Earnings (Loss)	$	62		$	48

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

DTE Energy Debt/Equity Calculation
As of March 31, 2007
($ millions)

Short-term borrowings	$	946
Current portion of long-term debt, including capital leases		372
Mortgage bonds, notes and other		5,885
Securitization bonds		1,124
Capital lease obligations		80
less MichCon short-term debt		(123	)
less Securitization bonds, including current portion		(1,238	)
Total debt		7,046
Trust preferred-linked securities		289
Total preferred/ other		289
Equity		5,816
Total capitalization	$	13,151
Debt		53.6	%
Preferred		2.2	%
Common shareholders’ equity		44.2	%
Total		100.0	%

Sales Analysis — Q1 2007

Electric Sales — Detroit Edison Service Area (GWh)

	Q1 2007		Q1 2006		% Change
Residential		3,786		3,836		-1	%
Commercial		4,309		4,008		8	%
Industrial		3,374		3,153		7	%
Other		845		782		8	%
		12,314		11,779		5	%
Choice*		518		1,363		-62	%
TOTAL SALES		12,832		13,142		-2	%

* Includes Dearborn Industrial Group sales

Gas Sales — MichCon Service Area (Mcf)

	Q1 2007		Q1 2006		% Change
Residential		52,728,330		48,165,971		9	%
Commercial		15,304,811		16,385,031		-7	%
Industrial		683,318		541,165		26	%
		68,716,459		65,092,167		6	%
End User Transportation*		48,771,743		43,453,449		12	%
TOTAL SALES		117,488,202		108,545,616		8	%

* Includes choice customers

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

	Q1 2007		Q1 2006		% Change
Residential		407,897		385,971		6	%
Commercial		390,519		344,029		14	%
Industrial		217,696		185,072		18	%
Other		43,580		37,902		15	%
		1,059,692		952,974		11	%
Choice*		12,610		30,072		-58	%
TOTAL REVENUES		1,072,302		983,046		9	%

* Distribution charge, includes Dearborn Industrial Group revenues

Gas Revenue — MichCon Service Area ($000s)

	Q1 2007		Q1 2006		% Change
Residential		497,036		607,843		-18	%
Commercial		145,043		206,061		-30	%
Industrial		6,449		6,675		-3	%
		648,528		820,579		-21	%
End User Transportation*		52,005		44,981		16	%
TOTAL REVENUES		700,533		865,560		-19	%

* Includes choice customers

Weather

Cooling Degree Days

Detroit Edison service territory

	Q1 2007		Q1 2006		% Change
Actuals		0		0		n/m
Normal		0		0		n/m
Deviation from normal		n/m		n/m

Heating Degree Days

MichCon service territory

	Q1 2007			Q1 2006			% Change
Actuals		3,217			2,851			13	%
Normal		3,291			3,288
Deviation from normal		-2	%		-13	%