Note 6 Debt

Long-term debt consisted of the following:

	March 31,		December 31,
	2013		2012
	(In thousands)
6.15% senior notes due February 2018	$	969,012	$	968,708
9.25% senior notes due January 2019	1,125,000		1,125,000
5.00% senior notes due September 2020	697,724		697,648
4.625% senior notes due September 2021	697,967		697,907
Revolving credit facility	890,000		890,000
Other	490		437
	$	4,380,193	$	4,379,700
Less: current portion	435		364
	$	4,379,758	$	4,379,336

Revolving Credit Facility

At March 31, 2013, we had $610 million of remaining availability from a total of $1.5 billion under our existing revolving credit facility. The weighted average interest rate on borrowings at March 31, 2013 was 1.51%. The revolving credit facility contains various covenants and restrictive provisions that limit our ability to incur additional indebtedness, make investments or loans and create liens and require us to maintain a net funded indebtedness to total capitalization ratio, as defined in each agreement. We were in compliance with all covenants under the agreement at March 31, 2013 and December 31, 2012. If we should fail to perform our obligations under the covenants, the revolving credit commitment could be terminated and any outstanding borrowings under the facility could be declared immediately due and payable.