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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
936340	Dte Energy Co	DTE	Electric Services (4911)	383217752

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1228997	D Bruce Peterson	One Energy Plaza Detroit MI 48226-1279	Svp/General Counsel	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-03-07	15,000	$44.72	60,479	No	4	M	Direct
Common Stock	Disposition	2012-03-07	15,000	$54.23	45,479	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Common stock (right to buy)	Disposition	2011-03-07	15,000	$0.00	15,000	$44.72

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2015-02-15	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	286	Indirect	401K

Footnotes

Price shown is weighted average sale price. The sale transactions reported on this line ranged in price from $54.12 to $54.29. The reporting person hereby undertakes to provide upon request by the Commission staff, DTE Energy Company, or a security holder of DTE Energy Company, full information regarding the number of shares sold at each separate price.
Includes shares of DTE common stock acquired under the DTE Energy Company Savings and Stock Ownership Plan (the "Plan") as of a Plan statement dated as of December 28, 2011.
The option vested in three equal annual installments beginning on February 15, 2006.