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Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows From Operating Activities:
Net Earnings	$ 101,282,000	$ 95,419,000	$ 131,896,000
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	275,641,000	268,194,000	242,033,000
Deferred income tax expense	8,019,000	130,528,000	63,805,000
Net unrealized losses on commodity derivatives	0	2,875,000	1,577,000
(Gains) losses on investment securities	17,176,000	(27,161,000)	(19,517,000)
Stock based compensation expense	7,120,000	6,194,000	5,634,000
Regulatory disallowances and restructuring costs	65,598,000	27,036,000	15,011,000
Allowance for equity funds used during construction	(10,404,000)	(9,516,000)	(4,949,000)
Other, net	3,529,000	2,329,000	3,060,000
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(8,702,000)	(1,846,000)	2,543,000
Materials, supplies, and fuel stock	(5,331,000)	1,473,000	(4,169,000)
Other current assets	2,491,000	31,298,000	(9,640,000)
Other assets	(840,000)	(5,486,000)	(42,864,000)
Accounts payable	(20,714,000)	14,468,000	3,159,000
Accrued interest and taxes	1,713,000	(327,000)	3,345,000
Other current liabilities	2,614,000	(6,513,000)	(12,509,000)
Other liabilities	(10,966,000)	(5,503,000)	29,868,000
Net cash flows from operating activities	428,226,000	523,462,000	408,283,000
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(501,213,000)	(500,461,000)	(600,076,000)
Proceeds from sales of investment securities	984,533,000	637,492,000	522,601,000
Purchases of investment securities	(1,007,022,000)	(650,284,000)	(538,383,000)
Return of principal on PVNGS lessor notes	0	0	8,547,000
Investments in NMRD	(9,000,000)	(4,077,000)	0
Disbursements from NMRD	0	12,415,000	0
Investment in Westmoreland Loan	0	0	(122,250,000)
Principal repayments on Westmoreland Loan	56,640,000	38,360,000	30,000,000
Other, net	338,000	392,000	186,000
Net cash flows from investing activities	(475,724,000)	(466,163,000)	(699,375,000)
Cash Flows From Financing Activities:
Short-term loan	50,000,000	0	100,000,000
Repayment of short-term loan	0	0	(150,000,000)
Revolving credit facilities borrowings (repayments), net	(119,500,000)	18,300,000	86,500,000
Long-term borrowings	984,652,000	317,000,000	603,500,000
Repayment of long-term debt	(750,162,000)	(274,070,000)	(303,793,000)
Proceeds from stock option exercise	963,000	1,739,000	7,028,000
Awards of common stock	(12,635,000)	(13,929,000)	(15,451,000)
Dividends paid	(84,961,000)	(77,792,000)	(70,623,000)
Valencia’s transactions with its owner	(17,095,000)	(17,742,000)	(17,006,000)
Amounts received under transmission interconnection arrangements	4,060,000	11,879,000	7,171,000
Refunds paid under transmission interconnection arrangements	(2,830,000)	(21,290,000)	(2,830,000)
Other, net	(6,846,000)	(2,942,000)	(2,104,000)
Net cash flows from financing activities	45,646,000	(58,847,000)	242,392,000
Change in Cash and Cash Equivalents	(1,852,000)	(1,548,000)	(48,700,000)
Cash and Cash Equivalents at Beginning of Period	3,974,000	5,522,000	54,222,000
Cash and Cash Equivalents at End of Period	2,122,000	3,974,000	5,522,000
Restricted Cash Included in Other Current Assets on Consolidated Balance Sheets:
At beginning of period	0	1,000,000	8,171,000
At end of period	0	0	1,000,000
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	119,308,000	120,955,000	115,043,000
Income taxes paid (refunded), net	842,000	625,000	(307,000)
Supplemental schedule of noncash investing and financing activities:
(Increase) decrease in accrued plant additions	(11,502,000)	(25,261,000)	18,345,000
Contribution of utility plant to NMRD	578,000	24,829,000
Public Service Company of New Mexico
Cash Flows From Operating Activities:
Net Earnings	70,323,000	87,413,000	91,938,000
Net Earnings	55,211,000	72,396,000	77,419,000
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	182,355,000	180,500,000	166,047,000
Deferred income tax expense	3,334,000	82,549,000	53,119,000
Net unrealized losses on commodity derivatives	0	2,875,000	1,577,000
(Gains) losses on investment securities	17,176,000	(27,161,000)	(19,517,000)
Regulatory disallowances and restructuring costs	66,339,000	27,036,000	15,011,000
Allowance for equity funds used during construction	(8,173,000)	(8,664,000)	(4,163,000)
Other, net	3,395,000	2,615,000	3,046,000
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(7,959,000)	(419,000)	4,769,000
Materials, supplies, and fuel stock	(6,238,000)	3,542,000	(3,924,000)
Other current assets	(468,000)	31,775,000	(6,044,000)
Other assets	6,894,000	15,121,000	(23,880,000)
Accounts payable	(14,290,000)	9,736,000	5,614,000
Accrued interest and taxes	(7,617,000)	21,523,000	(9,601,000)
Other current liabilities	(17,975,000)	(11,099,000)	(12,136,000)
Other liabilities	(3,761,000)	(9,389,000)	20,119,000
Net cash flows from operating activities	283,335,000	407,953,000	281,975,000
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(255,627,000)	(309,142,000)	(445,464,000)
Proceeds from sales of investment securities	984,533,000	637,492,000	522,601,000
Purchases of investment securities	(1,007,022,000)	(650,284,000)	(538,383,000)
Return of principal on PVNGS lessor notes	0	0	8,547,000
Other, net	544,000	33,000	171,000
Net cash flows from investing activities	(277,572,000)	(321,901,000)	(452,528,000)
Cash Flows From Financing Activities:
Revolving credit facilities borrowings (repayments), net	2,600,000	(21,200,000)	61,000,000
Short-term borrowings (repayments) - affiliate, net	19,800,000	0	0
Long-term borrowings	450,000,000	257,000,000	321,000,000
Repayment of long-term debt	(450,025,000)	(232,000,000)	(271,000,000)
Equity contribution from parent	0	0	28,142,000
Dividends paid	(77,904,000)	(61,223,000)	(4,670,000)
Valencia’s transactions with its owner	(17,095,000)	(17,742,000)	(17,006,000)
Amounts received under transmission interconnection arrangements	72,260,000	11,879,000	7,171,000
Refunds paid under transmission interconnection arrangements	(2,830,000)	(21,290,000)	(2,830,000)
Other, net	(3,592,000)	(1,692,000)	(1,239,000)
Net cash flows from financing activities	(6,786,000)	(86,268,000)	120,568,000
Change in Cash and Cash Equivalents	(1,023,000)	(216,000)	(49,985,000)
Cash and Cash Equivalents at Beginning of Period	1,108,000	1,324,000	51,309,000
Cash and Cash Equivalents at End of Period	85,000	1,108,000	1,324,000
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	73,029,000	77,960,000	82,514,000
Income taxes paid (refunded), net	134,000	(23,391,000)	(967,000)
Supplemental schedule of noncash investing and financing activities:
(Increase) decrease in accrued plant additions	(12,310,000)	(11,792,000)	22,433,000
Texas-New Mexico Power Company
Cash Flows From Operating Activities:
Net Earnings	51,591,000	35,559,000	41,672,000
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	68,078,000	64,939,000	62,866,000
Deferred income tax expense	1,780,000	27,275,000	12,662,000
Regulatory disallowances and restructuring costs	(741,000)	0	0
Allowance for equity funds used during construction	(2,200,000)	(900,000)	(800,000)
Allowance for equity funds used during construction and other, net	(2,048,000)	(1,120,000)	(772,000)
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(744,000)	(1,427,000)	(2,226,000)
Materials, supplies, and fuel stock	907,000	(2,069,000)	(245,000)
Other current assets	1,929,000	(1,253,000)	(621,000)
Other assets	(7,174,000)	(20,967,000)	(19,126,000)
Accounts payable	(4,199,000)	2,419,000	(2,040,000)
Accrued interest and taxes	12,263,000	(15,962,000)	12,690,000
Other current liabilities	6,719,000	(2,236,000)	298,000
Other liabilities	(6,610,000)	1,334,000	6,822,000
Net cash flows from operating activities	121,751,000	86,492,000	111,980,000
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(223,448,000)	(145,495,000)	(122,518,000)
Net cash flows from investing activities	(223,448,000)	(145,495,000)	(122,518,000)
Cash Flows From Financing Activities:
Revolving credit facilities borrowings (repayments), net	17,500,000	0	(59,000,000)
Short-term borrowings (repayments) - affiliate, net	100,000	(4,600,000)	(7,200,000)
Long-term borrowings	95,000,000	60,000,000	60,000,000
Equity contribution from parent	30,000,000	50,000,000	50,000,000
Dividends paid	(41,903,000)	(44,389,000)	(31,817,000)
Other, net	(700,000)	(979,000)	(775,000)
Net cash flows from financing activities	99,997,000	60,032,000	11,208,000
Change in Cash and Cash Equivalents	(1,700,000)	1,029,000	670,000
Cash and Cash Equivalents at Beginning of Period	1,700,000	671,000	1,000
Cash and Cash Equivalents at End of Period	0	1,700,000	671,000
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	28,629,000	29,251,000	26,766,000
Income taxes paid (refunded), net	4,266,000	21,436,000	660,000
Supplemental schedule of noncash investing and financing activities:
(Increase) decrease in accrued plant additions	$ 1,810,000	$ (15,737,000)	$ (1,271,000)

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