Exhibit 12

NiSource Inc.

Ratio of Earnings to Fixed Charges

	December 31, 2012		December 31, 2011		December 31, 2010			December 31, 2009			December 31, 2008
Earnings as defined in item 503(d) of Regulation S-K:
Add:
Pretax income from continuing operations (a)(b)	$	594,440,498	$	437,240,555	$	391,803,457		$	366,934,051		$	523,209,917
Fixed Charges	453,457,181		424,873,958		442,730,583			423,724,907			422,708,986
Amortization of capitalized interest (c)	—		—		—			—			—
Distributed income of equity investees	34,850,000		18,800,143		36,741,190			2,924,805			7,941,413
Share of pre-tax losses of equity investees for which charges arising guarantees are included in fixed charges	—		—		—			—			—
Deduct:
Interest capitalized (c)	—		—		—			—			—
Preference security dividend requirements of consolidated subsidiaries(d)	—		—		—			—			—
Non-Controlling interest in pre-tax income of subsidiaries that have not incurred fixed charges	—		—		(11,762		)	(46,769		)	(5,307		)
	$	1,082,747,679	$	880,914,656	$	871,286,992		$	793,630,532		$	953,865,623
Fixed charges as defined in item 503(d) of Regulation S-K:
Interest on long-term debt	$	398,233,583	$	362,913,295	$	390,690,947		$	386,737,382		$	358,736,132
Other interest	28,541,916		35,399,618		22,851,904			5,268,937			37,561,475
Capitalized interest during period (c)
Amortization of premium, reacquisition premium, discount and expense on debt, net	9,699,158		8,941,809		10,287,487			13,020,255			7,682,146
Interest portion of rent expense	16,982,524		17,619,236		18,912,006			18,745,102			18,734,540
Non-controlling interest			—		(11,762		)	(46,769		)	(5,307		)
	$	453,457,181	$	424,873,958	$	442,730,583		$	423,724,907		$	422,708,986
Plus preferred stock dividends: Preferred dividend requirements of subsidiary	$	—	$	—	$	—		$	—		$	—
Preferred dividend requirements factor	0.66		0.65		0.68			0.58			0.67
Preference security dividend requirements of consolidated subsidiaries (d)	—		—		—			—			—
Fixed charges	453,457,181		424,873,958		442,730,583			423,724,907			422,708,986
	$	453,457,181	$	424,873,958	$	442,730,583		$	423,724,907		$	422,708,986
Ratio of earnings to fixed charges	2.39		2.07		1.97			1.87			2.26

^(a) Income Statement amounts have been adjusted for discontinued operations.

^(b) Excludes adjustment for minority interest in consolidated subsidiaries or income or loss from equity investees.

^(c) NiSource is a public utility following ASC 980 and therefore does not add amortization of capitalized interest or subtract interest capitalized in determining earnings, nor reduces fixed charges for Allowance for Funds Used During Construction.

^(d) Preferred dividends, as defined by SEC regulation S-K, are computed by dividing the preferred dividend requirement by one minus the effective income tax rate applicable to continuing operations.