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Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2011

Related Party Transactions [Abstract]

Summary of related party transactions

A summary of the aforementioned related party transactions for the years ended December 31, 2011, 2010 and 2009 is as follows:

		Year Ended December 31,
		2011				2010				2009
Net sales to Glencore		$	564,431			$	413,408			$	230,909
Purchases from Glencore			187,691				106,381				37,683
Purchases from BHH			19,543				19,690				15,218
Cash premium to Glencore for put option contracts			2,106				6,341				7,228
Glencore's participation in common stock offerings			-				-				59,590

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Tabular disclosure of the summary of related party transactions.

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