Mineral Rights (Tables)

9 Months Ended

Sep. 30, 2014

Extractive Industries [Abstract]

Mineral Rights

The Partnership’s mineral rights consist of the following:

	September 30, 2014			December 31, 2013
	(In thousands)
	(Unaudited)
Mineral rights	$	1,918,570		$	1,894,920
Less accumulated depletion and amortization		(532,651	)		(489,465	)
Net book value	$	1,385,919		$	1,405,455
	Nine Months Ended September 30,
	2014			2013
	(In thousands)
	(Unaudited)
Total depletion and amortization expense on mineral rights	$	43,185		$	42,671