Exhibit 12
	ONEOK, Inc.
	Computation of Ratio of Earnings to Fixed Charges
	Years Ended December 31,
(Unaudited)	2009			2008			2007			2006			2005
	(Thousands of dollars)
Fixed Charges, as defined
Interest on long-term debt	$	292,768		$	254,765		$	249,925		$	233,152		$	117,365
Other interest		20,411			44,858			16,115			4,493			27,031
Amortization of debt discount, premium    and expense		4,597			4,421			5,710			4,115			3,935
Interest on lease agreements		20,221			29,524			37,448			12,738			20,781
Total Fixed Charges		337,997			333,568			309,198			254,498			169,112
Earnings before income taxes and undistributed    income of equity method investees		718,656			771,239			681,169			747,950			647,308
Earnings available for fixed charges	$	1,056,653		$	1,104,807		$	990,367		$	1,002,448		$	816,420
Ratio of earnings to fixed charges		3.13	x		3.31	x		3.20	x		3.94	x		4.83	x
For purposes of computing the ratio of earnings to fixed charges, "earnings" consists of pre-tax 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.