Financing (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Short-term Debt

Short-term debt outstanding consists of:

	December 31,
Short-term Debt	2017		2016
	(In thousands)
PNM:
PNM Revolving Credit Facility	$	39,800	$	35,000
PNM 2014 New Mexico Credit Facility	—		26,000
PNM 2017 New Mexico Credit Facility	—		—
	39,800		61,000
TNMP Revolving Credit Facility	—		—
PNMR:
PNMR Revolving Credit Facility	165,600		126,100
PNMR 2016 One-Year Term Loan	100,000		100,000
	$	305,400	$	287,100

Schedule of maturities and interest rates

Information concerning the maturities and interest rates on the PNM 2018 SUNs to be issued in May 2018 and August 2018 is as follows:

Scheduled
Funding	Maturity	Principal		Interest
Date	Date	Amount		Rate
		(In millions)
May 15, 2018	May 15, 2023	$	55.0	3.15	%
May 15, 2018	May 15, 2025	104.0		3.45	%
May 15, 2018	May 15, 2028	88.0		3.68	%
May 15, 2018	May 15, 2033	38.0		3.93	%
May 15, 2018	May 15, 2038	45.0		4.22	%
May 15, 2018	May 15, 2048	20.0		4.50	%
		350.0
August 1, 2018	August 1, 2028	15.0		3.78	%
August 1, 2018	August 1, 2048	85.0		4.60	%
		100.0
		$	450.0

Information concerning long-term debt outstanding and unamortized (premiums), discounts, and debt issuance costs is as follows:

	December 31, 2017					December 31, 2016
	Principal		Unamortized Discounts, (Premiums), and Issuance Costs, net			Principal		Unamortized Discounts, (Premiums), and Issuance Costs, net
	(In thousands)
PNM Debt
Senior Unsecured Notes, Pollution Control Revenue Bonds:
1.875% due April 2033, mandatory tender - October 1, 2021	$	146,000	$	1,383		$	146,000	$	1,807
6.25% due January 2038	36,000		228			36,000		239
4.75% due June 2040, mandatory tender - June 1, 2017	—		—			37,000		25
2.125% due June 2040, mandatory tender - June 1, 2022	37,000		404			—		—
5.20% due June 2040, mandatory tender - June 1, 2020	40,045		105			40,045		147
5.90% due June 2040	255,000		2,040			255,000		2,131
6.25% due June 2040	11,500		92			11,500		96
2.54% due September 2042, mandatory tender - June 1, 2017	—		—			20,000		67
2.45% due September 2042, mandatory tender - June 1, 2022	20,000		153			—		—
2.40% due June 2043, mandatory tender - June 1, 2020	39,300		243			39,300		340
5.20% due June 2043, mandatory tender - June 1, 2020	21,000		53			21,000		75
Senior Unsecured Notes:
7.95% due May 2018	350,000		272			350,000		995
7.50% due August 2018	100,025		73			100,025		197
5.35% due October 2021	160,000		617			160,000		780
3.85% due August 2025	250,000		2,274			250,000		2,574
PNM 2016 Term Loan Agreement due November 2017	—		—			175,000		28
PNM 2017 Term Loan Agreement due January 2019	200,000		23			—		—
	1,665,870		7,960			1,640,870		9,501
Less current maturities	25		2			232,000		120
	1,665,845		7,958			1,408,870		9,381
TNMP Debt
First Mortgage Bonds:
9.50% due April 2019	172,302		1,032			172,302		1,857
6.95% due April 2043	93,198		(18,057		)	93,198		(18,773		)
4.03% due July 2024	80,000		686			80,000		792
3.53% due February 2026	60,000		667			60,000		749
3.22% due August 2027	60,000		552			—		—
	465,500		(15,120		)	405,500		(15,375		)
Less current maturities	—		—			—		—
	465,500		(15,120		)	405,500		(15,375		)
PNMR Debt
PNMR 2015 Term Loan Agreement due March 2018	150,000		12			150,000		84
BTMU Term Loan Agreement, payments through February 2021	50,137		1,001			92,207		1,634
PNMR 2016 Two-Year Term Loan due December 2018	100,000		9			100,000		21
	300,137		1,022			342,207		1,739
Less current maturities	257,268		396			42,025		557
	42,869		626			300,182		1,182
Total Consolidated PNMR Debt	2,431,507		(6,138		)	2,388,577		(4,135		)
Less current maturities	257,293		398			274,025		677
	$	2,174,214	$	(6,536	)	$	2,114,552	$	(4,812	)

Schedule of Maturities of Long-term Debt

Reflecting mandatory tender dates and the impacts of the refinancing under the PNM 2017 Senior Unsecured Note Agreement discussed above, long-term debt matures as follows:

	PNMR		PNM		TNMP		PNMR Consolidated
	(In thousands)
2018	$	257,268	$	25	$	—	$	257,293
2019	12,357		200,000		172,302		384,659
2020	25,862		100,345		—		126,207
2021	4,650		306,000		—		310,650
2022	—		57,000		—		57,000
Thereafter	—		1,002,500		293,198		1,295,698
Total	$	300,137	$	1,665,870	$	465,500	$	2,431,507