NOTE 13 – Senior Notes

The following table summarizes our senior notes as of December 31, 2015 and 2014 (in thousands):

	December 31,
	2015		2014
3.50% senior notes, due 2020 ¹	$	300,000	$	—
5.375% senior notes, due 2022 ²		150,000		150,000
4.250% senior notes, due 2024 ³		300,000		300,000
6.70% senior notes, due 2022 ⁴		—		175,000
	$	750,000	$	625,000

In December 2015, we sold in a registered underwritten public offering, $300.0 million in aggregate principal amount of 3.50% senior notes due December 2020. Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100% of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption.

In December 2012, we sold in a registered underwritten public offering, $150.0 million in aggregate principal amount of 5.375% senior notes due December 2022. Interest on these senior notes is payable quarterly in arrears. On or after December 31, 2015, we may redeem some or all of the senior notes at any time at a redemption price equal to 100% of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date.

In July 2014, we sold in a registered underwritten public offering, $300.0 million in aggregate principal amount of 4.250% senior notes due July 2024. Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100% of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption.

⁴

In January 2012, we sold in a registered underwritten public offering, $175.0 million in aggregate principal amount of 6.70% senior notes due January 2022. Interest on these senior notes is payable quarterly in arrears. On January 15, 2015, we redeemed 100% of our company’s outstanding 6.70% senior notes.

Our senior notes mature as follows, based upon contractual terms:

2016	$	—
2017		—
2018		—
2019		—
2020		300,000
Thereafter		450,000
	$	750,000