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Fair Value of Derivative and Other Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value of Derivative and Other Financial Instruments [Line Items]

Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

A reconciliation of the changes in Level 3 fair value measurements for PNMR is as follows. PNM had no Level 3 fair value measurements during the six months ended June 30, 2012 and 2011.

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2012				2011				2012				2011
PNMR	(In thousands)
Balance at beginning of period	$	—			$	894			$	—			$	(822	)
Total gains (losses) included in earnings	—				3,676				—				5,226
Purchases	—				2,617				—				2,735
Settlements	—				(2,795		)		—				(2,747		)
Balance at end of period	$	—			$	4,392			$	—			$	4,392
Total gains (losses) included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the end of the period	$	—			$	1,954			$	—			$	3,122

Fair Value, by Balance Sheet Grouping [Table Text Block]

The carrying amounts and fair values of investments in PVNGS lessor notes, other investments, and long-term debt, which are not recorded at fair value on the Condensed Consolidated Balance Sheets are presented below:

									GAAP Fair Value Hierarchy(1)
	Carrying Amount				Fair Value				Level 1				Level 2				Level 3
June 30, 2012	(In thousands)
PNMR
Long-term debt	$	1,674,345			$	1,943,775			$	—			$	1,938,636			$	5,139
Investment in PVNGS lessor notes	$	89,188			$	91,746			$	—			$	—			$	91,746
Other investments	$	8,450			$	12,200			$	887			$	—			$	11,313
PNM
Long-term debt	$	1,215,560			$	1,353,938			$	—			$	1,353,938			$	—
Investment in PVNGS lessor notes	$	89,188			$	91,746			$	—			$	—			$	91,746
Other investments	$	1,525			$	1,569			$	620			$	—			$	949
TNMP
Long-term debt	$	311,276			$	418,008			$	—			$	418,008			$	—
Other investments	$	267			$	267			$	267			$	—			$	—
December 31, 2011
PNMR
Long-term debt	$	1,674,013			$	1,873,002
Investment in PVNGS lessor notes	$	107,094			$	108,742
Other investments	$	12,207			$	14,208
PNM
Long-term debt	$	1,215,540			$	1,294,846
Investment in PVNGS lessor notes	$	107,094			$	108,742
Other investments	$	2,900			$	3,052
TNMP
Long-term debt	$	310,963			$	413,966
Other investments	$	271			$	271

⁽¹⁾ GAAP does not require disclosure of the fair value hierarchy information prior to 2012.

PNMR and PNM [Member]

Fair Value of Derivative and Other Financial Instruments [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

Commodity derivative instruments are summarized as follows:

	Economic Hedges
	June 30, 2012				December 31, 2011
PNMR and PNM	(In thousands)
Current assets	$	4,659			$	3,713
	4,659				3,713
Current liabilities	(1,742		)		(1,632		)
Long-term liabilities	(5,156		)		(2,437		)
	(6,898		)		(4,069		)
Net	$	(2,239	)		$	(356	)

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

The following table presents the effect of commodity derivative instruments on earnings, excluding income tax effects.

	Economic Hedges
	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2012				2011				2012				2011
PNMR	(In thousands)
Electric operating revenues	$	(3,581	)		$	190			$	1,637			$	1,334
Cost of energy	63				(4,594		)		(541		)		86
Total gain (loss)	$	(3,518	)		$	(4,404	)		$	1,096			$	1,420
PNM
Electric operating revenues	$	(3,581	)		$	190			$	1,637			$	1,334
Cost of energy	63				(284		)		(541		)		159
Total gain (loss)	$	(3,518	)		$	(94	)		$	1,096			$	1,493

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

Commodity contract volume positions are presented in Decatherms for gas related contracts and in MWh for power related contracts. The table below presents PNMR’s and PNM’s net buy (sell) volume positions:

	Economic Hedges
	Decatherms			MWh
June 30, 2012
PNMR and PNM	2,435,000			(2,028,674	)
December 31, 2011
PNMR and PNM	1,499,000			(366,448	)

Schedule of Collateral Related to Derivative [Table Text Block]

Net exposure is the net contractual liability for all contracts, including those designated as normal purchases and sales, offset by existing cash collateral and by any offsets available under master netting agreements, including both asset and liability positions.

Contingent Feature – Credit Rating Downgrade		Contractual Liability				Existing Cash Collateral				Net Exposure
		(In thousands)
June 30, 2012
PNMR and PNM		$	4,754			$	—			$	4,397
December 31, 2011
PNMR and PNM		$	4,036			$	—			$	4,036

Available-for-sale Securities [Table Text Block]

The fair value and gross unrealized gains of investments in available-for-sale securities are presented in the following table.

	June 30, 2012								December 31, 2011
	Unrealized Gains				Fair Value				Unrealized Gains				Fair Value
					(In thousands)
Equity securities:
Domestic value	$	3,934			$	27,188			$	3,549			$	25,143
Domestic growth	20,298				58,427				16,714				52,187
International and other	446				11,398				662				12,754
Fixed income securities:
Municipals	3,548				43,007				2,861				41,463
U.S. Government	1,465				24,986				1,353				25,367
Corporate and other	985				10,959				742				9,171
Cash investments	—				2,869				—				2,766
	$	30,676			$	178,834			$	25,881			$	168,851

The proceeds and gross realized gains and losses on the disposition of available-for-sale securities for PNMR and PNM are shown in the following table. Realized gains and losses are determined by specific identification of costs of securities sold.

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2012				2011				2012				2011
	(In thousands)
Proceeds from sales	$	19,027			$	46,770			$	45,787			$	94,890
Gross realized gains	$	2,434			$	8,700			$	4,766			$	13,490
Gross realized (losses)	$	(1,186	)		$	(554	)		$	(1,925	)		$	(2,282	)

Investments Classified by Contractual Maturity Date [Table Text Block]

At June 30, 2012, the available-for-sale and held-to-maturity debt securities had the following final maturities:

	Fair Value
	Available-for-Sale				Held-to-Maturity
	PNMR and PNM				PNMR				PNM
	(In thousands)
Within 1 year	$	2,087			$	949			$	949
After 1 year through 5 years	21,540				98,804				91,746
After 5 years through 10 years	13,221				2,102				—
Over 10 years	42,104				—				—
	$	78,952			$	101,855			$	92,695

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]

Items recorded at fair value on the Condensed Consolidated Balance Sheets are presented below:

					GAAP Fair Value Hierarchy
	Fair Value				Level 1				Level 2				Level 3
June 30, 2012					(In thousands)
PNMR and PNM
NDT investments
Cash and equivalents	$	2,869			$	2,869			$	—			$	—
Equity securities:
Domestic value	27,188				27,188				—				—
Domestic growth	58,427				58,427				—				—
International and other	11,398				11,398				—				—
Fixed income securities:
U.S. government	24,986				21,223				3,763				—
Municipals	43,007				—				43,007				—
Corporate and other	10,959				—				10,959				—
Total NDT investments	$	178,834			$	121,105			$	57,729			$	—
Commodity derivative assets	$	4,659			$	125			$	4,534			$	—
Commodity derivative liabilities	(6,898		)		—				(6,898		)		—
Net	$	(2,239	)		$	125			$	(2,364	)		$	—
December 31, 2011
PNMR and PNM
NDT investments
Cash and equivalents	$	2,766			$	2,766			$	—			$	—
Equity securities:
Domestic value	25,143				25,143				—				—
Domestic growth	52,187				52,187				—				—
International and other	12,754				12,754				—				—
Fixed income securities:
U.S. government	25,367				21,409				3,958				—
Municipals	41,463				—				41,463				—
Corporate and other	9,171				—				9,171				—
Total NDT investments	$	168,851			$	114,259			$	54,592			$	—
Commodity derivative assets	$	3,713			$	—			$	3,713			$	—
Commodity derivative liabilities	(4,069		)		—				(4,069		)		—
Net	$	(356	)		$	—			$	(356	)		$	—

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Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liability.

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