Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2017

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The table below summarizes the nature and amount of related party transactions of PNMR, PNM, and TNMP:

	Three Months Ended
	March 31,
	2017		2016
	(In thousands)
Services billings:
PNMR to PNM	$	24,402	$	22,734
PNMR to TNMP	8,137		7,048
PNM to TNMP	85		106
TNMP to PNMR	35		10
Interest billings:
PNMR to TNMP	31		50
PNM to PNMR	43		36
Income tax sharing payments:
PNMR to PNM	—		—
PNMR to TNMP	—		—