DERIVATIVE INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair value of derivative instruments

The fair values of all derivative instruments, as reflected in the condensed balance sheets as of September 30, 2012 and December 31, 2011, are as follows (in thousands):

Derivatives not designated as hedging instruments under GAAP	September 30, 2012				December 31, 2011
	Assets		Liabilities		Assets		Liabilities
Energy related commodity contracts:
Derivatives – Energy Related – Current	$	746	$	3,418	$	2,263	$	11,385
Derivatives – Energy Related – Non-Current	610		26		—		1,122
Interest rate contracts:
Derivatives – Other	—		8,365		—		8,146
Total derivatives not designated as hedging instruments under GAAP	$	1,356	$	11,809	$	2,263	$	20,653

Derivatives in cash flow hedging relationships

The effect of derivative instruments on the condensed statements of income for the three and nine months ended September 30, 2012 and 2011 are as follows (in thousands):

	Three months ended September 30,						Nine months ended September 30,
Derivatives in Cash Flow Hedging Relationships Interest Rate Contracts:	2012			2011			2012			2011
Losses reclassified from accumulated OCI into income (a)	$	(12	)	$	(12	)	$	(36	)	$	(36	)

(a) Included in Interest Charges