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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
CURRENT ASSETS |  |
Cash and cash equivalents | $ 181,926 | $ 10,283
Customer and other receivables | 417,415 | 266,426
Accrued unbilled revenues | 175,341 | 128,165
Allowance for doubtful accounts | (18,069) | (8,171)
Materials and supplies (at average cost) | 322,017 | 331,091
Fossil fuel (at average cost) | 17,060 | 14,829
Income tax receivable | 4,325 | 21,727
Assets from risk management activities (Note 7) | 13,875 | 515
Deferred fuel and purchased power regulatory asset (Note 4) | 162,111 | 70,137
Other regulatory assets (Note 4) | 110,759 | 133,070
Other current assets | 67,926 | 61,958
Total current assets | 1,454,686 | 1,030,030
INVESTMENTS AND OTHER ASSETS |  |
Nuclear decommissioning trust (Notes 11 and 12) | 1,069,837 | 1,010,775
Other special use funds (Notes 11 and 12) | 268,292 | 245,095
Other assets | 96,855 | 96,953
Total investments and other assets | 1,434,984 | 1,352,823
PROPERTY, PLANT AND EQUIPMENT |  |
Plant in service and held for future use | 20,453,437 | 19,836,292
Accumulated depreciation and amortization | (6,999,995) | (6,637,857)
Net | 13,453,442 | 13,198,435
Construction work in progress | 972,024 | 808,133
Intangible assets, net of accumulated amortization | 266,220 | 290,564
Nuclear fuel, net of accumulated amortization | 128,876 | 123,500
Total property, plant and equipment | 14,919,565 | 14,522,538
DEFERRED DEBITS |  |
Regulatory assets (Note 4) | 1,305,437 | 1,304,073
Operating lease right-of-use assets (Note 16) | 502,898 | 145,813
Assets for other postretirement benefits (Note 5) | 105,675 | 90,570
Other | 28,176 | 33,400
Total deferred debits | 1,942,186 | 1,573,856
TOTAL ASSETS | 19,751,421 | 18,479,247
CURRENT LIABILITIES |  |
Current maturities of long-term debt (Note 3) | 0 | 800,000
Accounts payable | 288,265 | 346,448
Accrued taxes | 221,358 | 144,899
Accrued interest | 60,642 | 53,534
Common dividends payable | 0 | 87,982
Short-term borrowings (Note 3) | 57,925 | 114,675
Customer deposits | 47,730 | 64,908
Liabilities from risk management activities (Note 7) | 4,266 | 38,946
Liabilities for asset retirements | 12,226 | 11,025
Operating lease liabilities (Note 16) | 89,064 | 12,713
Regulatory liabilities (Note 4) | 308,019 | 234,912
Other current liabilities | 155,289 | 168,323
Total current liabilities | 1,244,784 | 2,078,365
Long-term debt less current maturities (Note 3) | 6,316,420 | 4,832,558
DEFERRED CREDITS AND OTHER |  |
Deferred income taxes | 2,163,050 | 1,992,339
Regulatory liabilities (Note 4) | 2,079,323 | 2,267,835
Liabilities for asset retirements | 674,025 | 646,193
Liabilities for pension benefits (Note 5) | 177,855 | 280,185
Liabilities from risk management activities (Note 7) | 9,092 | 33,186
Customer advances | 224,924 | 215,330
Unrecorded Unconditional Purchase Obligation | 168,997 | 165,695
Deferred investment tax credit | 187,926 | 196,468
Unrecognized tax benefits | 6,013 | 6,189
Operating lease liabilities (Note 16) | 358,490 | 51,872
Other | 173,347 | 159,844
Total deferred credits and other | 6,223,042 | 6,015,136
COMMITMENTS AND CONTINGENCIES (NOTE 8) |  |
EQUITY |  |
Common stock, no par value; authorized 150,000,000 shares, 112,623,623 and 112,540,126 issued at respective dates | 2,670,358 | 2,659,561
Treasury stock at cost; 33,717 and 103,546 shares at respective dates | (2,966) | (9,427)
Total common stock | 2,667,392 | 2,650,134
Retained earnings | 3,231,485 | 2,837,610
Accumulated other comprehensive loss | (57,491) | (57,096)
Total shareholders’ equity | 5,841,386 | 5,430,648
Noncontrolling interests (Note 6) | 125,789 | 122,540
Total equity | 5,967,175 | 5,553,188
TOTAL LIABILITIES AND EQUITY | 19,751,421 | 18,479,247
APS |  |
CURRENT ASSETS |  |
Cash and cash equivalents | 181,793 | 10,169
Customer and other receivables | 417,362 | 255,479
Accrued unbilled revenues | 175,341 | 128,165
Allowance for doubtful accounts | (18,069) | (8,171)
Materials and supplies (at average cost) | 322,017 | 331,091
Fossil fuel (at average cost) | 17,060 | 14,829
Income tax receivable | 0 | 7,313
Assets from risk management activities (Note 7) | 13,875 | 515
Deferred fuel and purchased power regulatory asset (Note 4) | 162,111 | 70,137
Other regulatory assets (Note 4) | 110,759 | 133,070
Other current assets | 42,847 | 38,895
Total current assets | 1,425,096 | 981,492
INVESTMENTS AND OTHER ASSETS |  |
Nuclear decommissioning trust (Notes 11 and 12) | 1,069,837 | 1,010,775
Other special use funds (Notes 11 and 12) | 268,292 | 245,095
Other assets | 48,393 | 43,781
Total investments and other assets | 1,386,522 | 1,299,651
PROPERTY, PLANT AND EQUIPMENT |  |
Plant in service and held for future use | 20,449,975 | 19,832,805
Accumulated depreciation and amortization | (6,996,748) | (6,634,597)
Net | 13,453,227 | 13,198,208
Construction work in progress | 972,024 | 808,133
Intangible assets, net of accumulated amortization | 266,065 | 290,409
Nuclear fuel, net of accumulated amortization | 128,876 | 123,500
Total property, plant and equipment | 14,919,195 | 14,522,156
DEFERRED DEBITS |  |
Regulatory assets (Note 4) | 1,305,437 | 1,304,073
Operating lease right-of-use assets (Note 16) | 501,282 | 144,024
Assets for other postretirement benefits (Note 5) | 101,792 | 86,736
Other | 27,592 | 32,591
Total deferred debits | 1,936,103 | 1,567,424
TOTAL ASSETS | 19,666,916 | 18,370,723
CURRENT LIABILITIES |  |
Current maturities of long-term debt (Note 3) | 0 | 350,000
Accounts payable | 282,868 | 338,006
Accrued taxes | 268,990 | 136,328
Accrued interest | 58,403 | 52,619
Common dividends payable | 0 | 88,000
Customer deposits | 47,730 | 64,908
Liabilities from risk management activities (Note 7) | 4,266 | 38,946
Liabilities for asset retirements | 12,226 | 11,025
Operating lease liabilities (Note 16) | 88,975 | 12,549
Regulatory liabilities (Note 4) | 308,019 | 234,912
Other current liabilities | 153,986 | 164,736
Total current liabilities | 1,225,463 | 1,492,029
Long-term debt less current maturities (Note 3) | 5,820,303 | 4,833,133
DEFERRED CREDITS AND OTHER |  |
Deferred income taxes | 2,166,599 | 2,033,096
Regulatory liabilities (Note 4) | 2,079,323 | 2,267,835
Liabilities for asset retirements | 674,025 | 646,193
Liabilities for pension benefits (Note 5) | 161,186 | 262,243
Liabilities from risk management activities (Note 7) | 9,092 | 33,186
Customer advances | 224,924 | 215,330
Unrecorded Unconditional Purchase Obligation | 168,997 | 165,695
Deferred investment tax credit | 187,926 | 196,468
Unrecognized tax benefits | 39,589 | 40,188
Operating lease liabilities (Note 16) | 356,783 | 50,092
Other | 142,431 | 136,432
Total deferred credits and other | 6,210,875 | 6,046,758
COMMITMENTS AND CONTINGENCIES (NOTE 8) |  |
EQUITY |  |
Common stock | 178,162 | 178,162
Additional paid-in capital | 2,721,696 | 2,721,696
Retained earnings | 3,418,753 | 3,011,927
Accumulated other comprehensive loss | (34,125) | (35,522)
Total shareholders’ equity | 6,284,486 | 5,876,263
Noncontrolling interests (Note 6) | 125,789 | 122,540
Total equity | 6,410,275 | 5,998,803
Total capitalization | 12,230,578 | 10,831,936
TOTAL LIABILITIES AND EQUITY | 19,666,916 | 18,370,723
Variable Interest Entity |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Total property, plant and equipment | 99,003 | 101,906
Variable Interest Entity | APS |  |
PROPERTY, PLANT AND EQUIPMENT |  |
Total property, plant and equipment | 99,003 | 101,906
EQUITY |  |
Noncontrolling interests (Note 6) | $ 125,789 | $ 122,540

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