Exhibit 12
Wisconsin Public Service Corporation
Ratio of Earnings to Fixed Charges and
Ratio of Earnings to Fixed Charges and Preferred Dividends
	2008
(Millions)	3 months			2007			2006			2005			2004
EARNINGS
Earnings on common stock	$	30.1		$	110.2		$	99.0		$	81.4		$	104.8
Federal and state income taxes		16.4			66.8			58.3			44.1			51.3
Net pretax income		46.5			177.0			157.3			125.5			156.1
(Income) from less than 50% equity investees		2.3			(9.3	)		(9.4	)		(7.5	)		(8.4	)
Distributed earnings of less than 50% equity investees		1.6			6.8			6.2			5.5			5.9
Fixed charges		12.9			50.2			47.2			42.7			40.4
Subtract preference dividend requirement		1.2			4.9			4.9			4.7			4.6
Total earnings as defined	$	62.1		$	219.8		$	196.4		$	161.5		$	189.4
FIXED CHARGES
Interest on long-term debt, including related amortization	$	10.5		$	36.0		$	29.4		$	29.8		$	29.9
Other interest		0.8			7.8			11.2			6.5			4.5
Interest factor applicable to rentals		0.4			1.5			1.7			1.7			1.4
Fixed charges before preferred dividend requirement	$	11.7		$	45.3		$	42.3		$	38.0		$	35.8
Ratio of earnings to fixed charges		5.3			4.9			4.6			4.3			5.3
Preferred dividends (grossed up) (see below)	$	1.2		$	4.9		$	4.9		$	4.7		$	4.6
Total fixed charges including preferred dividend	$	12.9		$	50.2		$	47.2		$	42.7		$	40.4
Ratio of earnings to fixed charges and preferred dividends		4.8			4.4			4.2			3.8			4.7
PREFERRED DIVIDEND CALCULATION:
Preferred dividends	$	0.8		$	3.1		$	3.1		$	3.1		$	3.1
Tax rate		34.8	%		37.3	%		36.6	%		34.5	%		32.4	%
Preferred dividends (grossed up)	$	1.2		$	4.9		$	4.9		$	4.7		$	4.6