Derivative Instruments (tables)

3 Months Ended

Mar. 31, 2012

Summary Of Derivative Instruments Abstract

Income Statement Presentation of Derivative Instruments [Text Block]

		Three Months Ended
		March 31, 2012								March 31, 2011
Thousands			Natural gas commodity	(1)		Foreign currency	(2)		Natural gas commodity	(1)		Foreign currency ⁽²⁾
Cost of sales		$	(55,894)		$	-		$	(33,750)		$	-
Other comprehensive income			-			126			-			602
Less:
Amounts deferred to regulatory accounts on balance sheet			55,894			(126)			33,750			(602)
	Total impact on earnings	$	-		$	-		$	-		$	-

⁽¹⁾Unrealized gain (loss) from natural gas commodity hedge contracts is recorded in cost of sales and reclassified to regulatory deferral accounts on the balance sheet.
⁽²⁾Unrealized gain (loss) from foreign currency exchange contracts is recorded in other comprehensive income, and reclassified to regulatory deferral accounts on the balance sheet.

Credit Rating Downgrade Scenarios [Text Block]

				Credit Rating Downgrade Scenarios
Thousands		(Current Ratings) A+/A3		BBB+/Baa1		BBB/Baa2		BBB-/Baa3		Speculative
With Adequate Assurance Calls	$	-	$	-	$	12,785	$	6,805	$	40,441
Without Adequate Assurance Calls	$	-	$	-	$	-	$	4,292	$	32,928

- 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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