SemGas S-4 Registration of securities issued in business combination transactions

Exhibit 12.1

SemGroup Corporation

Computation of Ratio of Earnings to Fixed Charges

(dollars in thousands)

	Successor																		Predecessor
	Nine Months Ended September 30, 2013			Nine Months Ended September 30, 2012			Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010			One Month Ended December 31, 2009			Eleven Months Ended November 30, 2009		Year Ended December 31, 2008
Pretax income from continuing operations before adjustment for minority interests in consolidated subsidiaries or income or loss from equity investees		(21,846	)		(12,541	)		(9,156	)		(14,598	)		(142,678	)		(45,341	)		3,542,002		(1,761,609	)
Add:
Fixed Charges		19,413			10,195			12,514			64,249			90,078			7,551			17,171		128,520
Amortizaton of capitalized interest		1,373			1,316			1762			1,741			1,691			140			1,528		1,522
Distributed earnings of equity investees		52,780			33,472			53,730			27,459			5,768			0			0		0
Subtract:
Capitalized interest		1,233			433			809			901			428			13			2,648		10,684
Pretax income as adjusted		50,487			32,009			58,041			77,950			(45,569	)		(37,663	)		3,558,053		(1,642,251	)
Fixed charges:
Interest expense		15,971			7,763			8,902			60,208			86,133			7,169			12,041		110,789
Interest capitalized		1,233			433			809			901			428			13			2,648		10,684
		17,204			8,196			9,711			61,109			86,561			7,182			14,689		121,473
Portion of rents representative of an appropriate interest factor		2,209			1,999			2,803			3,140			3,517			369			2,482		7,047
Total fixed charges		19,413			10,195			12,514			64,249			90,078			7,551			17,171		128,520
Ratio of earnings to fixed charges		2.6			3.1			4.6			1.2			See Note 1			See Note 2			207.2		See Note 3

Note 1: Earnings for the year ended December 31, 2010 were insufficient to cover fixed charges by $136 million.

Note 2: Earnings for the month ended December 31, 2009 were insufficient to cover fixed charges by $45 million.

Note 3: Earnings for the year ended December 31, 2008 were insufficient to cover fixed charges by $1,771 million.