Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2021

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				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
	(In thousands)
Services billings:
PNMR to PNM	$	23,617	$	24,204	$	75,992	$	70,848
PNMR to TNMP	9,187		9,645		29,687		28,075
PNM to TNMP	107		106		319		295
TNMP to PNMR	—		35		24		106
PNMR to NMRD	55		74		165		199
Renewable energy purchases:
PNM from NMRD	3,384		3,723		9,473		7,646
Interconnection billings:
PNM to NMRD	225		—		225		350
PNM to PNMR	—		—		—		—
NMRD to PNM	—		—		1,276		—
Interest billings:
PNMR to PNM	—		—		—		6
PNM to PNMR	36		60		108		218
PNMR to TNMP	—		—		—		2
Income tax sharing payments:
PNMR to PNM	—		—		—		—
TNMP to PNMR	—		—		—		—