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Equity Method Investment
12 Months Ended
Dec. 31, 2024
Equity Method Investments and Joint Ventures [Abstract]  
Equity Method Investment Equity Method Investment
In September 2017, PNMR Development and AEP OnSite Partners created NMRD to pursue the acquisition, development, and ownership of renewable energy generation projects, primarily in the state of New Mexico. PNMR Development and AEP OnSite Partners each had a 50% ownership interest in NMRD.

On December 22, 2023, PNMR Development and AEP Onsite reached agreement with Exus New Mexico, LLC, a subsidiary of Exus North America Holdings, LLC, for the sale of NMRD and its subsidiaries, pursuant to a Membership Interest Purchase Agreement, dated December 22, 2023 (“MIPA”). Closing occurred on February 27, 2024, with PNMR Development receiving net proceeds of $117.0 million and recognized an after-tax gain of $4.4 million, which includes the recognition of deferred investment tax credits of $15.7 million.

TXNM accounted for its investment in NMRD using the equity method of accounting because TXNM’s ownership interest results in significant influence, but not control, over NMRD and its operations. TXNM recorded as income its percentage share of earnings or loss of NMRD and carried its investment at cost, adjusted for its share of undistributed earnings or losses.
During 2024, 2023 and 2022 PNMR Development and AEP OnSite Partners each made cash contributions of $12.6 million, $26.3 million and zero to NMRD.

TXNM presented its share of net earnings from NMRD in other income on the Consolidated Statements of Earnings. Summarized financial information for NMRD is as follows:
December 31,
202420232022
(In thousands)
Operating revenues
$3,204 $13,629 $12,505 
Operating expenses3,378 8,228 9,591 
Net earnings
$(174)$5,401 $2,914 
Financial Position

December 31,
20242023
(In thousands)
Current assets$— $2,589 
Net property, plant, and equipment— 235,791 
Non-current assets— 1,849 
Total assets
— 240,229 
Current liabilities— 730 
Non-current liabilities— 358 
Owners’ equity
$— $239,141