Northern Tier Finance S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 12.1

CALCULATION OF RATIOS OF EARNINGS TO FIXED CHARGES

The following table sets forth our ratios of earnings to fixed charges for the periods presented (amounts in millions).

	Predecessor										Successor
									Eleven  Months Ended November 30 2010		June 23, 2010 (inception date) - December 31 2010		Year Ended December 31 2011
	Year ended December 31,
	2007			2008			2009
Earnings:
Earnings before income taxes	$	325.3		$	98.4		$	89.5	$	128.1	$	24.8	$	28.3
less:
Income (loss) from equity investees		(0.7	)		(1.2	)		1.1		5.4		0.1		7.3
add:
Fixed charges		1.1			1.6			1.6		1.3		3.9		48.9
Distributed income of equity investees		—			—			1.4		6.0		0.7		8.0
Adjusted earnings	$	325.7		$	98.8		$	93.6	$	140.8	$	29.5	$	92.5
Fixed charges:
Interest expense		—			0.5			0.4		0.3		3.2		40.8
Estimate of interest within rental expense (a)		1.1			1.1			1.2		1.0		0.7		8.1
Fixed charges	$	1.1		$	1.6		$	1.6	$	1.3	$	3.9	$	48.9
Ratio of earnings to fixed charges		309.8x			60.5x			59.9x		106.7x		7.5x		1.9x

(a) Interest component of rental expense is estimated to equal 1/3 of expense, which is considered a reasonable approximation of the interest factor.