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Derivatives (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]



	Year Ended December 31,
	2011		2010		2009
Natural Gas Price Swaps
Gain recognized in Accumulated OCI	$	200,699	$	140,985	$	186,824
Gain reclassified from Accumulated OCI into Outside Sales	$	95,006	$	166,276	$	239,956
Gain/(Loss) recognized in Outside Sales for ineffectiveness	$	1,034	$	31	$	(962	)



	Year Ended December 31,
	2011		2010		2009
Natural Gas Price Swaps
Gain recognized in Accumulated OCI	$	200,699	$	140,985	$	186,824
Gain reclassified from Accumulated OCI into Outside Sales	$	95,006	$	166,276	$	239,956
Gain/(Loss) recognized in Outside Sales for ineffectiveness	$	1,034	$	31	$	(962	)

- 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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