v3.26.1
Regulatory Assets and Liabilities
3 Months Ended
Mar. 31, 2026
Regulated Operations [Abstract]  
Regulatory Assets and Liabilities REGULATORY ASSETS AND LIABILITIES
Regulatory assets and liabilities were as follows at:
Remaining
Recovery
Period
March 31,
2026
December 31,
2025
(In thousands)
Regulatory assets:
Deferred income taxesOver Plant lives$164,726 $160,754 
Refinancing fees
Up to 24 years
78,579 80,122 
Unrealized loss on interest rate swaps
Up to 6 years
20,263 21,066 
Unrealized loss on commodity derivatives
Up to 8 years
19,190 28,239 
Other
Up to 49 years
21,068 21,192 
303,826 311,373 
Regulatory liabilities:
Deferred revenue(272,000)(272,000)
Unrealized gain on equity investments(16,436)(18,489)
Post-retirement medical gain(21,044)(21,044)
Other(22,296)(24,772)
(331,776)(336,305)
Net regulatory liabilities$(27,950)$(24,932)
If all or a separable portion of Basin Electric’s operations no longer are subject to the provisions of ASC 980, a write-off of net related regulatory assets (liabilities) would be required, unless some form of transition recovery (refund) continues through rates established and collected for Basin Electric’s remaining regulated operations. In addition, Basin Electric would be required to determine any impairment to the carrying costs of deregulated plant and inventory assets.