Exhibit 12.1

Ratio of Earnings To Combined Fixed Charges And Preferred Stock Dividends

The following table sets forth the calculation of our ratio of earnings to combined fixed charges and preferred stock

dividends for the periods shown:

	For the Year Ended
(In Thousands, Except Ratios)	December 31, 2017			December 31, 2016			December 31, 2015			December 31, 2014			December 31, 2013
Net income before taxes	$	524,776		$	552,026		$	250,350		$	589,207		$	362,688
Add: Fixed charges (interest expense) (1)	548,196			375,963			306,590			200,430			123,856
Preferred stock dividend	33,484			2,449			—			—			—
Income as adjusted	$	1,106,456		$	930,438		$	556,940		$	789,637		$	486,544
Fixed charges (interest expense) + preferred stock dividend	$	581,680		$	378,412		$	306,590		$	200,430		$	123,856
Ratio of income (losses) to combined fixed charges and preferred stock dividends	1.90		x	2.46		x	1.82x			3.94x			3.93x
Deficiency	$	—		$	—		$	—		$	—		$	—
(1) Includes effect of realized losses on interest rate swaps.