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Related Party Transactions
 6 Months Ended
Jun. 30, 2023
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
PNMR, PNM, TNMP, and NMRD are considered related parties, as is PNMR Services Company, a wholly-owned subsidiary of PNMR that provides corporate services to PNMR and its subsidiaries in accordance with shared services agreements. These services are billed at cost on a monthly basis to the business units. In addition, PNMR provides construction and operations and maintenance services to NMRD, a 50% owned subsidiary of PNMR Development. PNM purchases renewable energy from certain NMRD-owned facilities at a fixed price per MWh of energy produced. PNM also provides interconnection services to PNMR Development and NMRD. See Note 16 for additional discussion of NMRD.

The table below summarizes the nature and amount of related party transactions of PNMR, PNM, TNMP, and NMRD:
Three Months EndedSix Months Ended
June 30,June 30,
2023202220232022
(In thousands)
Services billings:
PNMR to PNM$29,142 $28,378 $60,642 $56,071 
PNMR to TNMP11,333 10,252 23,727 20,556 
PNM to TNMP104 123 169 216 
TNMP to PNMR35 35 71 71 
PNMR to NMRD82 81 164 145 
Renewable energy purchases:
PNM from NMRD3,748 3,801 6,109 6,422 
Interconnection and facility study billings:
PNM to NMRD— — — — 
PNM to PNMR— — — — 
NMRD to PNM— — — — 
Interest billings:
PNMR to PNM7 2 10 9 
PNM to PNMR143 47 273 70 
PNMR to TNMP117 72 128 117 
Income tax sharing payments:
PNMR to PNM— — — — 
TNMP to PNMR— — — —