Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents	$ 14,023	$ 15,404
Accounts receivable, net of allowance for uncollectible accounts of $9,275 and $11,178	103,824	97,245
Unbilled revenues	97,513	71,453
Other receivables	46,596	58,901
Affiliate receivables	2,392	1,661
Materials, supplies, and fuel stock	51,370	52,479
Regulatory assets	29,608	36,292
Commodity derivative instruments	18,840	15,999
Income taxes receivable	102,317	97,450
Current portion of accumulated deferred income taxes	886	886
Other current assets	99,919	96,110
Total current assets	567,288	543,880
Other Property and Investments:
Investment in PVNGS lessor notes	90,555	103,871
Investments held by NDT	168,513	156,922
Other investments	15,645	18,791
Non-utility property, net of accumulated depreciation of $2,333 and $2,307	12,317	7,333
Total other property and investments	287,030	286,917
Utility Plant:
Plant in service and plant held for future use	4,959,239	4,860,614
Less accumulated depreciation and amortization	1,665,970	1,626,693
Net plant in service and plant held for future use	3,293,269	3,233,921
Construction work in progress	139,340	137,622
Nuclear fuel, net of accumulated amortization of $29,993 and $26,247	79,906	72,901
Net utility plant	3,512,515	3,444,444
Deferred Charges and Other Assets:
Regulatory assets	478,599	502,467
Goodwill	321,310	321,310
Other intangible assets, net of accumulated amortization of $5,511 and $5,414	26,329	26,425
Commodity derivative instruments	7,754	5,264
Other deferred charges	100,808	94,376
Total deferred charges and other assets	934,800	949,842
Assets	5,301,633	5,225,083
Current Liabilities:
Short-term debt	304,000	222,000
Current installments of long-term debt	2,252	2,252
Accounts payable	111,460	95,969
Accrued interest and taxes	45,852	47,783
Regulatory liabilities	919	724
Commodity derivative instruments	27,285	31,407
Dividends declared	132	11,565
Other current liabilities	97,547	108,424
Total current liabilities	589,447	520,124
Long-term Debt	1,563,916	1,563,595
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	543,044	540,106
Accumulated deferred investment tax credits	16,930	18,089
Regulatory liabilities	358,141	342,465
Asset retirement obligations	75,483	76,637
Accrued pension liability and postretirement benefit cost	250,671	270,172
Commodity derivative instruments	13,770	12,831
Other deferred credits	149,610	147,616
Total deferred credits and other liabilities	1,407,649	1,407,916
Total liabilities	3,561,012	3,491,635
Commitments and Contingencies (See Note 9)
Cumulative preferred stock of subsidiary without mandatory redemption requirements ($100 stated value, 10,000,000 shares authorized: issued and outstanding 115,293 shares)	11,529	11,529
Equity:
Company Convertible Preferred Stock, Series A without mandatory redemption requirements	100,000	100,000
Common stock outstanding	1,290,969	1,290,465
Accumulated other comprehensive income (loss), net of income taxes	(70,691)	(68,666)
Retained earnings	324,217	314,943
Total PNMR common stockholders' equity	1,544,495	1,536,742
Non-controlling interest in Valencia	84,597	85,177
Total equity	1,729,092	1,721,919
Total liabilities and stockholders' equity	5,301,633	5,225,083
Public Service Company of New Mexico [Member]
Current Assets:
Cash and cash equivalents	485	10,336
Accounts receivable, net of allowance for uncollectible accounts of $9,275 and $11,178	53,121	58,785
Unbilled revenues	52,200	39,053
Other receivables	45,494	56,951
Affiliate receivables	9,053	8,605
Materials, supplies, and fuel stock	48,624	49,454
Regulatory assets	26,344	35,835
Commodity derivative instruments	935	1,443
Income taxes receivable	82,662	76,941
Other current assets	49,185	46,635
Total current assets	368,103	384,038
Other Property and Investments:
Investment in PVNGS lessor notes	90,555	103,871
Investments held by NDT	168,513	156,922
Other investments	4,118	5,068
Non-utility property, net of accumulated depreciation of $2,333 and $2,307	976	976
Total other property and investments	264,162	266,837
Utility Plant:
Plant in service and plant held for future use	3,898,460	3,818,722
Less accumulated depreciation and amortization	1,283,394	1,259,957
Net plant in service and plant held for future use	2,615,066	2,558,765
Construction work in progress	121,238	115,628
Nuclear fuel, net of accumulated amortization of $29,993 and $26,247	79,906	72,901
Net utility plant	2,816,210	2,747,294
Deferred Charges and Other Assets:
Regulatory assets	345,728	357,944
Goodwill	51,632	51,632
Commodity derivative instruments	5	0
Other deferred charges	74,314	67,828
Total deferred charges and other assets	471,679	477,404
Assets	3,920,154	3,875,573
Current Liabilities:
Short-term debt	273,000	190,000
Accounts payable	57,003	51,931
Affiliate payables	17,862	8,528
Accrued interest and taxes	27,298	25,773
Regulatory liabilities	919	724
Commodity derivative instruments	1,720	3,110
Dividends declared	3,781	39,254
Current portion of accumulated deferred income taxes	9,783	9,783
Other current liabilities	64,281	65,858
Total current liabilities	455,647	394,961
Long-term Debt	1,055,756	1,055,748
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	440,579	446,657
Accumulated deferred investment tax credits	16,930	18,089
Regulatory liabilities	316,109	299,763
Asset retirement obligations	74,707	75,888
Accrued pension liability and postretirement benefit cost	235,737	253,948
Commodity derivative instruments	1,841	2,009
Other deferred credits	111,122	108,455
Total deferred credits and other liabilities	1,197,025	1,204,809
Total liabilities	2,708,428	2,655,518
Commitments and Contingencies (See Note 9)
Cumulative Preferred Stock of Subsidiary without mandatory redemption requirements	11,529	11,529
Equity:
Common stock outstanding	1,018,776	1,018,776
Accumulated other comprehensive income (loss), net of income taxes	(68,468)	(66,786)
Retained earnings	165,292	171,359
Total PNMR common stockholders' equity	1,115,600	1,123,349
Non-controlling interest in Valencia	84,597	85,177
Total equity	1,200,197	1,208,526
Total liabilities and stockholders' equity	3,920,154	3,875,573
Texas-New Mexico Power Company [Member]
Current Assets:
Cash and cash equivalents	1	1
Accounts receivable, net of allowance for uncollectible accounts of $9,275 and $11,178	16,740	12,742
Unbilled revenues	7,534	5,734
Other receivables	1,208	1,677
Affiliate receivables	5,316	3,956
Materials, supplies, and fuel stock	2,713	2,787
Regulatory assets	3,264	457
Current portion of accumulated deferred income taxes	1,876	1,876
Other current assets	1,265	618
Total current assets	39,917	29,848
Other Property and Investments:
Other investments	268	282
Non-utility property, net of accumulated depreciation of $2,333 and $2,307	2,240	2,244
Total other property and investments	2,508	2,526
Utility Plant:
Plant in service and plant held for future use	903,429	885,325
Less accumulated depreciation and amortization	313,482	302,333
Net plant in service and plant held for future use	589,947	582,992
Construction work in progress	14,043	12,375
Net utility plant	603,990	595,367
Deferred Charges and Other Assets:
Regulatory assets	132,871	144,522
Goodwill	226,665	226,665
Other deferred charges	12,474	12,029
Total deferred charges and other assets	372,010	383,216
Assets	1,018,425	1,010,957
Current Liabilities:
Short-term debt – affiliate	7,000	1,200
Accounts payable	5,507	5,537
Affiliate payables	3,306	1,015
Accrued interest and taxes	17,150	23,185
Other current liabilities	4,016	3,292
Total current liabilities	36,979	34,229
Long-term Debt	310,650	310,337
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes	146,692	142,121
Regulatory liabilities	42,032	42,702
Asset retirement obligations	671	648
Accrued pension liability and postretirement benefit cost	14,934	16,224
Other deferred credits	12,418	11,413
Total deferred credits and other liabilities	216,747	213,108
Total liabilities	564,376	557,674
Commitments and Contingencies (See Note 9)
Equity:
Paid-in-capital	423,042	430,108
Common stock outstanding	64	64
Accumulated other comprehensive income (loss), net of income taxes	(1,918)	(1,485)
Retained earnings	32,861	24,596
Total PNMR common stockholders' equity	454,049	453,283
Total liabilities and stockholders' equity	$ 1,018,425	$ 1,010,957