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DERIVATIVE INSTRUMENTS: (Tables)

9 Months Ended

Sep. 30, 2012

Copper derivative activity related to copper sales transactions

	Third quarter			Nine months
	2012	2011		2012		2011
Zero cost collar contracts:
Pounds (in millions)	—	105.8		46.3		317.5
Average LME cap price	—	$	4.84	$	5.18	$	4.84
Average LME floor price	—	$	3.02	$	3.50	$	3.02

Swap contracts:	—
Pounds (in millions)	—	99.2		—		331.2
Weighted average COMEX price	—	$	4.08	—		$	4.08

Realized gain (loss) on copper derivatives (in millions) (*)	—	$	20.7	—		$	(23.7	)

(*) Realized gains and losses in 2011 include a gain of $23.9 million recognized in the third quarter resulting from the unwinding of copper swap positions.

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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