v3.26.1
Capitalization (Tables)
6 Months Ended
Jun. 30, 2026
Equity [Abstract]  
Schedule of Carrying Amount and Fair Value of First Mortgage Bonds (FMBs) The carrying amount and fair value of the FMBs were as follows:
(Thousands of Dollars)
June 30, 2026December 31, 2025
Carrying
Amount
Fair
Value
Carrying
Amount
Fair
Value
FMBs$125,431 $121,675 $126,172 $120,430