Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2019

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

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

	Three Months Ended
	March 31,
	2019		2018
	(In thousands)
Services billings:
PNMR to PNM	$	26,826	$	23,679
PNMR to TNMP	10,058		8,365
PNM to TNMP	75		86
TNMP to PNMR	35		35
PNMR to NMRD	41		78
Renewable energy purchases:
PNM from NMRD	625		370
Interconnection billings:
PNM to NMRD	—		—
PNM to PNMR	—		—
Interest billings:
PNMR to PNM	933		62
PNM to PNMR	72		66
PNMR to TNMP	32		8
Income tax sharing payments:
PNMR to PNM	—		—
TNMP to PNMR	—		—