Major Lessees (Tables)

12 Months Ended

Dec. 31, 2012

Revenues from Lessees that Exceeded Ten Percent of Total Revenues

The Partnership has the following lessees that generated in excess of ten percent of total revenues in any one of the years ended December 31, 2012, 2011, and 2010. Revenues from these lessees are as follows:

	For the Years Ended December 31,
	2012					2011					2010
	Revenues		Percent			Revenues		Percent			Revenues		Percent
	(Dollars in thousands)
The Cline Group	$	92,341		24.4	%	$	67,819		18.0	%	$	62,372		20.7	%
Alpha Natural Resources	$	81,077		21.4	%	$	107,267		28.4	%	$	79,084		26.2	%