v3.26.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Operating activities:    
Net Income (loss) $ 272,531 $ 211,730
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 425,028 419,912
Conservation amortization 103,415 84,187
Deferred income taxes and tax credits, net 12,299 4,895
AFUDC - equity (24,555) (36,476)
Other non-cash 48,911 33,061
Regulatory assets and liabilities 59,543 (37,628)
Purchased gas adjustment (19,088) 35,123
GHG emission allowances (88,257) (90,587)
Other long-term assets and liabilities (12,051) 8,063
Change in certain current assets and liabilities:    
Accounts receivable and unbilled revenue 121,865 112,122
Materials and supplies (55,933) (34,085)
Fuel and natural gas inventory 332 8,690
Prepayments and other (3,507) 20,723
Accounts payable (127,738) (126,327)
Taxes payable (4,286) (14,446)
Other (15,648) (22,648)
Net cash provided by (used in) operating activities 790,829 576,309
Investing activities:    
Construction expenditures - excluding equity AFUDC (851,190) (730,325)
Other (951) 4,339
Net cash provided by (used in) investing activities (852,141) (725,986)
Financing activities:    
Change in short-term debt, net (267,500) (15,400)
Dividends paid (20,963) (23,374)
Proceeds from long-term debt and bonds issued 891,000 596,100
Other 6,152 10,096
Net cash provided by (used in) financing activities 608,689 167,422
Net increase (decrease) in cash, cash equivalents, and restricted cash 547,377 17,745
Cash, cash equivalents, and restricted cash at beginning of period 158,853 140,701
Cash, cash equivalents, and restricted cash at end of period 706,230 158,446
Supplemental cash flow information:    
Cash payments for interest (net of capitalized interest) 218,556 191,848
Cash payments (refunds) for income taxes 22,385 18,554
Non-cash financing and investing activities:    
Accounts payable for capital expenditures eliminated from cash flows 113,110 113,429
Redemption of bonds and notes 0 (400,000)
Proceeds From Sale of Transferable Tax Credits 97,968 0
Subsidiaries    
Operating activities:    
Net Income (loss) 326,183 254,334
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation and amortization 421,684 416,545
Conservation amortization 103,415 84,187
Deferred income taxes and tax credits, net 2,199 6,767
AFUDC - equity (24,555) (36,476)
Other non-cash 43,492 25,863
Regulatory assets and liabilities 59,543 (37,628)
Purchased gas adjustment (19,088) 35,123
GHG emission allowances (88,257) (90,587)
Other long-term assets and liabilities (10,828) 10,200
Change in certain current assets and liabilities:    
Accounts receivable and unbilled revenue 121,969 112,757
Materials and supplies (55,933) (34,085)
Fuel and natural gas inventory (271) 8,257
Prepayments and other (3,352) 20,820
Accounts payable (126,710) (127,378)
Taxes payable (4,100) (14,719)
Other (32,162) (31,155)
Net cash provided by (used in) operating activities 811,197 602,825
Investing activities:    
Construction expenditures - excluding equity AFUDC (851,110) (730,046)
Other (951) 4,339
Net cash provided by (used in) investing activities (852,061) (725,707)
Financing activities:    
Change in short-term debt, net 160,000 15,000
Dividends paid (113,868) (24,793)
Other 12,132 12,159
Net cash provided by (used in) financing activities 58,264 141,366
Net increase (decrease) in cash, cash equivalents, and restricted cash 17,400 18,484
Cash, cash equivalents, and restricted cash at beginning of period 157,136 138,970
Cash, cash equivalents, and restricted cash at end of period 174,536 157,454
Supplemental cash flow information:    
Cash payments for interest (net of capitalized interest) 165,759 146,414
Cash payments (refunds) for income taxes 50,557 29,615
Non-cash financing and investing activities:    
Accounts payable for capital expenditures eliminated from cash flows 113,110 113,429
Proceeds From Sale of Transferable Tax Credits $ 97,968 $ 0