EXHIBIT 12-37

DTE ENERGY COMPANY
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Three Months
	Ended March 31			Twelve Months Ended December 31
	2006			2005		2004		2003		2002		2001
(Millions of Dollars)
Earnings:
Pretax earnings	$	123		$	497	$	423	$	287	$	485	$	202
Adjustments		(3	)		5		2		26		24		31
Fixed charges		141			547		544		569		557		476
Net earnings	$	261		$	1,049	$	969	$	882	$	1,066	$	709
Fixed charges:
Interest expense	$	133		$	519	$	516	$	545	$	553	$	468
Adjustments		8			28		28		24		4		8
Fixed charges	$	141		$	547	$	544	$	569	$	557	$	476
Ratio of earnings to fixed charges		1.85			1.92		1.78		1.55		1.91		1.49