“ths ended September 30, 2025, compared to the same period in 2024 is primarily driven by unplanned outages at Wygen III. (b) As discussed in footnote (b) in the Quantities Generated and Purchased by Fuel Type table above, the increase in Wyoming Electric's purchases is primarily driven by increased demand from LPCS Tariff and BCIS Tariff customers.”
“Consolidated Interest Expense, Other Income and Income Tax Expense Three Months Ended March 31, 2026 2025 2026 vs 2025 Variance (in millions) Interest expense, net $ (51.9 ) $ (51.3 ) $ (0.6 ) Other income, net 0.7 0.8 (0.1 ) Income tax (expense) (17.6 ) (18.1 ) 0.5 35 Table of Contents Three Months Ended March 31, 2026, Compared to the Three Months Ended March 31, 2025: • Interest expense, net, was comparable to the same period in the prior year as higher interest expense primarily driven by higher debt balances was mostly offset by higher interest income driven by higher cash and cash equivalents balances.”