5. LONG-TERM DEBT

The components of long-term debt as of the dates indicated below were as follows:


	March 31,		December 31,
	2015		2014
	(Thousands of dollars)
Senior Notes dated March 17, 2014, interest only payable semi-annually at 5.25%, maturing March 15, 2019	$	500,000	$	500,000
Revolving Credit Facility due October 1, 2016 with a group of commercial banks, interest payable at variable rates		39,640		43,000

Total long-term debt	$	539,640	$	543,000

Senior Notes - During the quarter ended March 31, 2014, we issued $500 million of 5.25% Senior Notes due March 2019. Proceeds were approximately $494 million, net of fees and expenses, and a portion of these proceeds were used to retire on March 17, 2014 $292.6 million of our $300 million previously outstanding 8.625% Senior Notes pursuant to a tender offer, at a total cost of $329.4 million including the tender premium and accrued interest. We redeemed the remaining $7.4 million of 8.625% Senior Notes on April 16, 2014, at a redemption price of 108.3% of the face amount plus accrued interest. As a result of our repurchase of 8.625% Senior Notes in March 2014, we recorded a pretax charge of $29.2 million in the quarter ended March 31, 2014, which consisted of a $26.1 million tender premium and $3.1 million of unamortized issuance costs. We recorded a pre-tax charge of $0.6 million in the second quarter of 2014 associated with our redemption on April 16, 2014 of the remaining 8.625% Senior Notes not previously tendered. Our repurchase of 8.625% Senior Notes in March 2014 and April 2014 resulted in deferred tax benefits of $11.6 million.

Our 5.25% Senior Notes (the “2019 Notes”) will mature on March 15, 2019, are unconditionally guaranteed on a senior basis by the each of PHI’s domestic subsidiaries, and are the general, unsecured obligations of PHI and the guarantors. Interest is payable semi-annually on March 15 and September 15 of each year, beginning September 15, 2014. PHI has the option to redeem some or all of the 2019 Notes at any time on or after March 15, 2016 at specified redemption prices. Prior to that time, PHI has the option to redeem some or all of the 2019 Notes pursuant to certain “make-whole” provisions or to redeem a portion of the 2019 Notes with the net proceeds of certain specified equity offerings. The indenture governing the 2019 Notes (the “2019 Indenture”) contains, among other things, certain restrictive covenants, including limitations on incurring indebtedness, creating liens, selling assets and entering into certain transactions with affiliates. The covenants also limit PHI’s ability to, among other things, pay cash dividends on common stock, repurchase or redeem common or preferred equity, prepay subordinated debt and make certain investments. Upon the occurrence of a “Change in Control Repurchase Event” (as defined in the 2019 Indenture), PHI will be required, unless it has previously elected to redeem the 2019 Notes as described above, to make an offer to purchase the 2019 Notes for a cash price equal to 101% of their principal amount.

Revolving Credit Facility – We have an amended and restated revolving credit facility that matures on October 1, 2016. Under this facility, we can borrow up to $150 million at floating interest rates based on either the London Interbank Offered Rate plus 225 basis points or the prime rate (each as defined in our amended and restated revolving credit facility), at our option. Our revolving credit facility includes usual and customary covenants and events of default for credit facilities of its type. Our ability to borrow under the credit facility is conditioned upon our continued compliance with such covenants, including, among others, (i) covenants that restrict our ability to engage in certain asset sales, mergers or other fundamental changes, to incur liens or to engage in certain other transactions or activities and (ii) financial covenants that stipulate that PHI will maintain a consolidated working capital ratio of at least 2 to 1, a funded debt to consolidated net worth ratio not greater than 1.5 to 1, a fixed charge coverage ratio of at least 1.1 to 1, and consolidated net worth of at least $450 million (with all such terms or amounts as defined in or determined under the amended and restated revolving credit facility).

Other—We maintain a separate letter of credit facility that had $15.5 million in letters of credit outstanding at March 31, 2015 and December 31, 2014.

Cash paid to fund interest expense was $13.5 million for the quarter ended March 31, 2015 and $11.3 million for the quarter ended March 31, 2014. Included in the 2014 interest expense was $10.7 million of accrued interest expense paid for the 8.625% Senior Notes that we purchased on March 17, 2014 and April 16, 2014 in the transactions described above.