Regulatory Assets and Liabilities Regulatory Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets

Regulatory assets and liabilities reflected in the Company's balance sheets are presented below (in thousands):

	Amortization Period Ends	December 31, 2013		December 31, 2012
Regulatory assets
Regulatory tax assets (a)	(b)	$	61,772	$	57,551
Loss on reacquired debt (c)	May 2035	18,338		19,191
Final coal reclamation (f)	July 2016	4,290		5,473
Nuclear fuel postload daily financing charge	(d)	4,141		3,833
Unrecovered issuance costs due to reissuance of PCBs (c)	August 2042	893		926
Texas energy efficiency	(e)	—		536
Texas 2012 rate case costs (f)	April 2014	581		2,335
Texas military base discount and recovery factor	(h)	759		2,116
New Mexico procurement plan costs	(g)	139		139
New Mexico renewable energy credits	(g)	4,833		4,033
New Mexico 2010 FPPCAC audit	(g)	433		433
New Mexico Palo Verde deferred depreciation	(b)	4,871		5,024
Total regulatory assets		$	101,050	$	101,590
Regulatory liabilities
Regulatory tax liabilities (a)	(b)	$	17,752	$	16,666
Accumulated deferred investment tax credit (i)	(b)	4,656		4,587
New Mexico energy efficiency	(e)	3,646		926
Texas energy efficiency	(e)	362		—
Total regulatory liabilities		$	26,416	$	22,179

________________

(a) No specific return on investment is required since related assets and liabilities offset.

(b) The amortization period for this asset is based upon the life of the associated assets or liabilities.

(c) This item is recovered as a component of the weighted cost of debt and amortized over the life of the related debt issuance.

(d) This item is recovered through fuel recovery mechanisms.

(e) This item is recovered or credited through a recovery factor that is set annually.

(f) This item is included in rate base which earns a return on investment.

(g) Amortization period is anticipated to be established in next general rate case.

(h) This item represents the net asset related to the military discount which is recovered from non-military customers through a recovery factor.

(i) This item is excluded from rate base.

Schedule of Regulatory Liabilities

Regulatory assets and liabilities reflected in the Company's balance sheets are presented below (in thousands):

	Amortization Period Ends	December 31, 2013		December 31, 2012
Regulatory assets
Regulatory tax assets (a)	(b)	$	61,772	$	57,551
Loss on reacquired debt (c)	May 2035	18,338		19,191
Final coal reclamation (f)	July 2016	4,290		5,473
Nuclear fuel postload daily financing charge	(d)	4,141		3,833
Unrecovered issuance costs due to reissuance of PCBs (c)	August 2042	893		926
Texas energy efficiency	(e)	—		536
Texas 2012 rate case costs (f)	April 2014	581		2,335
Texas military base discount and recovery factor	(h)	759		2,116
New Mexico procurement plan costs	(g)	139		139
New Mexico renewable energy credits	(g)	4,833		4,033
New Mexico 2010 FPPCAC audit	(g)	433		433
New Mexico Palo Verde deferred depreciation	(b)	4,871		5,024
Total regulatory assets		$	101,050	$	101,590
Regulatory liabilities
Regulatory tax liabilities (a)	(b)	$	17,752	$	16,666
Accumulated deferred investment tax credit (i)	(b)	4,656		4,587
New Mexico energy efficiency	(e)	3,646		926
Texas energy efficiency	(e)	362		—
Total regulatory liabilities		$	26,416	$	22,179

________________

(a) No specific return on investment is required since related assets and liabilities offset.

(b) The amortization period for this asset is based upon the life of the associated assets or liabilities.

(c) This item is recovered as a component of the weighted cost of debt and amortized over the life of the related debt issuance.

(d) This item is recovered through fuel recovery mechanisms.

(e) This item is recovered or credited through a recovery factor that is set annually.

(f) This item is included in rate base which earns a return on investment.

(g) Amortization period is anticipated to be established in next general rate case.

(h) This item represents the net asset related to the military discount which is recovered from non-military customers through a recovery factor.

(i) This item is excluded from rate base.