7. Long-Term Debt

Long-term debt consists of the following:


	September 30, 2012			December 31, 2011
	(In thousands)
$300 million floating rate revolving credit facility, due August 2016	$	103,000		$	—
5.55% senior notes, with semi-annual interest payments in June and December, maturing June 2013		35,000			35,000
4.91% senior notes, with semi-annual interest payments in June and December, with annual principal payments in June, maturing in June 2018		27,700			32,317
8.38% senior notes, with semi-annual interest payments in March and September, with scheduled principal payments beginning March 2013, maturing in March 2019		150,000			150,000
5.05% senior notes, with semi-annual interest payments in January and July, with annual principal payments in July, maturing in July 2020		61,538			69,230
5.31% utility local improvement obligation, with annual principal and interest payments, maturing in March 2021		1,731			1,922
5.55% senior notes, with semi-annual interest payments in June and December, with annual principal payments in June, maturing in June 2023		30,300			33,600
4.73% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2023		75,000			75,000
5.82% senior notes, with semi-annual interest payments in March and September, with annual principal payments in March, maturing in March 2024		180,000			195,000
8.92% senior notes, with semi-annual interest payments in March and September, with scheduled principal payments beginning March 2014, maturing in March 2024		50,000			50,000
5.03% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2026		175,000			175,000
5.18% senior notes, with semi-annual interest payments in June and December, with scheduled principal payments beginning December 2014, maturing in December 2026		50,000			50,000

Total debt		939,269			867,069
Less – current portion of long term debt		(87,230	)		(30,801	)

Long-term debt	$	852,039		$	836,268

Principal payments due in:


	Senior Notes		Credit Facility		Total
	(In thousands)
Remainder of 2012	$	—	$	—	$	—
2013		87,230		—		87,230
2014		80,983		—		80,983
2015		80,983		—		80,983
2016		80,983		103,000		183,983
Thereafter		506,090		—		506,090

	$	836,269	$	103,000	$	939,269

The senior note purchase agreement contains covenants requiring our operating subsidiary to:

•

Maintain a ratio of consolidated indebtedness to consolidated EBITDDA (as defined in the note purchase agreement) of no more than 4.0 to 1.0 for the four most recent quarters;

•

not permit debt secured by certain liens and debt of subsidiaries to exceed 10% of consolidated net tangible assets (as defined in the note purchase agreement); and

•

maintain the ratio of consolidated EBITDDA to consolidated fixed charges (consisting of consolidated interest expense and consolidated operating lease expense) at not less than 3.5 to 1.0.

The 8.38% and 8.92% senior notes also provide that in the event that the Partnership’s leverage ratio exceeds 3.75 to 1.00 at the end of any fiscal quarter, then in addition to all other interest accruing on these notes, additional interest in the amount of 2.00% per annum shall accrue on the notes for the two succeeding quarters and for as long thereafter as the leverage ratio remains above 3.75 to 1.00.

The Partnership made principal payments of $30.8 million on its senior notes during the nine months ended September 30, 2012.

At September 30, 2012, the Partnership had $103 million outstanding on its revolving credit facility; while at December 31, 2011 the Partnership did not have any outstanding balance. The weighted average interest rates for the nine months ended September 30, 2012 and year ended December 31, 2011 were 2.13% and 1.83%, respectively. The Partnership incurs a commitment fee on the undrawn portion of the revolving credit facility at rates ranging from 0.18% to 0.40% per annum. The facility includes an accordion feature whereby the Partnership may request its lenders to increase their aggregate commitment to a maximum of $500 million on the same terms.

The revolving credit facility contains covenants requiring the Partnership to maintain:

•

a ratio of consolidated indebtedness to consolidated EBITDDA (as defined in the credit agreement) not to exceed 4.0 to 1.0 and,

•

a ratio of consolidated EBITDDA to consolidated fixed charges (consisting of consolidated interest expense and consolidated lease operating expense) of not less than 3.5 to 1.0 for the four most recent quarters.

The Partnership was in compliance with all terms under its long-term debt as of September 30, 2012.