Derivative Gains And Losses (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative mark-to-market (gains)/losses recorded in the Statement of Operations

The derivative mark-to-market (gains)/losses recorded in the Statement of Operations are comprised of the following amounts:

	For the three months ended				For the six months ended
	June 30,				June 30,
	2012		2011		2012		2011
Riverstone Resources, Inc. - warrants	$	—	$	315	$	162	$	41
Gold price derivatives	—		2,115		—		6,638
Derivative (gain)/loss	$	—	$	2,430	$	162	$	6,679

	For the three months ended				For the six months ended
	June 30,				June 30,
	2012		2011		2012			2011
Realized (gain)/loss	$	—	$	1,499	$	(393	)	$	1,499
Unrealized (gain)/loss	—		931		555			5,180
Derivative (gain)/loss	$	—	$	2,430	$	162		$	6,679