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Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2012

Related Party Transaction [Line Items]

Summary of reimbursements


		Three Months Ended March 31,
		2012				2011
		(In thousands) (Unaudited)
Reimbursement for services		$	2,523			$	2,062

Summary of revenues from related party


		Three Months Ended March 31,
		2012				2011
		(In thousands) (Unaudited)
Coal royalty revenues		$	8,623			$	9,179
Processing fees			502				701
Transportation fees			4,108				4,099
Minimums recognized as revenue			9,556				—
Override revenue			926				451

		$	23,715			$	14,430


		Three Months Ended March 31,
		2012				2011
		(In thousands) (Unaudited)
Processing revenues		$	1,345			$	2,207


		Three Months Ended March 31,
		2012				2011
		(In thousands) (Unaudited)
Coal royalty revenues		$	760			$	334