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Related Party Transactions
 9 Months Ended
Sep. 30, 2024
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
TXNM, PNM, TNMP, and NMRD are considered related parties, as is PNMR Services Company, a wholly-owned subsidiary of TXNM that provides corporate services to TXNM 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, PNM purchases renewable energy from certain NMRD-owned facilities at a fixed price per MWh of energy produced. On February 27, 2024, PNMR Development and AEP OnSite Partners sold their respective interests in NMRD and the table below reflects transactions with NMRD prior to the sale. See Note 16 for additional discussion of NMRD. The table below summarizes the nature and amount of related party transactions of TXNM, PNM, TNMP, and NMRD:
Three Months EndedNine Months Ended
September 30,September 30,
2024202320242023
(In thousands)
Services billings:
TXNM to PNM
$33,095 $29,509 $99,525 $90,151 
TXNM to TNMP
13,192 10,976 40,314 34,703 
PNM to TNMP178 100 368 269 
TNMP to TXNM
75 35 85 106 
TNMP to PNM497 — 497 — 
TXNM to NMRD
— 71 66 235 
Renewable energy purchases:
PNM from NMRD— 3,652 1,523 9,761 
Interest billings:
TXNM to PNM
77 8 116 18 
PNM to TXNM
156 153 465 426 
TXNM to TNMP
23 117 202 128 
Income tax sharing payments:
TXNM to PNM
— — — — 
TNMP to TXNM
— — — —