5. LONG-TERM DEBT

The components of long-term debt as of are as follows:


	June 30,		December 31,
	2013		2012
	(Thousands of dollars)
Senior Notes issued September 23, 2010, interest only payable semi-annually at 8.625%, maturing October 15, 2018	$	300,000	$	300,000
Revolving Credit Facility due September 1, 2014 with a group of commercial banks, interest payable at variable rates		75,723		86,755

Total long-term debt	$	375,723	$	386,755

Other—We maintain a separate letter of credit facility that had $14.7 million in letters of credit outstanding at June 30, 2013 and December 31, 2012.

Cash paid for interest was $13.6 million for the quarter ended June 30, 2013 and $13.4 million for the quarter ended June 30, 2012. Cash paid for interest was $14.3 million for the six months ended June 30, 2013 and June 30, 2012.