Exhibit 12

ONEOK, Inc.
Computation of Ratio of Earnings to Fixed Charges
	Years Ended December 31,
(Unaudited)	2014			2013			2012			2011			2010
	(Thousands of dollars)
Fixed charges, as defined
Interest on long-term debt	$	380,441		$	374,520		$	326,206		$	305,523		$	287,910
Other interest	4,127			10,397			12,045			8,374			4,594
Amortization of debt discount, premium and expense	6,652			7,064			5,830			7,070			4,623
Interest on lease agreements	275			1,494			539			1,515			19,289
Total fixed charges	391,495			393,475			344,620			322,482			316,416
Earnings before income taxes and undistributed income of equity method investees	854,181			709,825			823,710			793,594			430,667
Earnings available for fixed charges	$	1,245,676		$	1,103,300		$	1,168,330		$	1,116,076		$	747,083
Ratio of earnings to fixed charges	3.18		x	2.80		x	3.39		x	3.46		x	2.36		x

For purposes of computing the ratio of earnings to fixed charges, “earnings” consists of pretax income from continuing operations before adjustment for income or loss from equity investees plus fixed charges and distributed income of equity investees, less interest capitalized. “Fixed charges” consists of interest charges, the amortization of debt discounts and issue costs and the representative interest portion of operating leases.