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CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | $ 530,540 | $ 507,949 | $ 461,527
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization including nuclear fuel | 650,955 | 610,629 | 565,011
Deferred fuel and purchased power | (78,277) | (48,405) | (60,303)
Deferred fuel and purchased power amortization | 116,750 | (14,767) | 38,152
Allowance for equity funds used during construction | (52,319) | (47,011) | (42,140)
Deferred income taxes | 117,355 | 248,164 | 206,870
Deferred investment tax credit | (5,170) | (4,587) | 23,082
Change in derivative instruments fair value | 0 | (373) | (403)
Stock compensation | 19,547 | 20,502 | 18,883
Changes in current assets and liabilities: |  |  |
Customer and other receivables | 37,530 | (93,797) | (2,489)
Accrued unbilled revenues | (24,736) | (4,485) | (11,709)
Materials, supplies and fossil fuel | (6,103) | (6,683) | (1,491)
Income tax receivable | 0 | 3,751 | (3,162)
Other current assets | 33,844 | (10,580) | (23,324)
Accounts payable | (14,602) | (23,769) | (66,917)
Accrued taxes | 6,597 | 9,982 | 447
Other current liabilities | 28,174 | 19,154 | 29,594
Change in margin and collateral accounts — assets | 143 | (300) | 673
Change in margin and collateral accounts — liabilities | (2,211) | (533) | 17,735
Change in unrecognized tax benefits | (1,235) | 5,891 | 1,628
Change in long-term regulatory liabilities | (109,284) | 45,764 | 14,682
Change in other long-term assets | 78,604 | (68,480) | (60,163)
Change in other long-term liabilities | (48,958) | (29,980) | (82,793)
Net cash flow provided by operating activities | 1,277,144 | 1,118,036 | 1,023,390
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Capital expenditures | (1,178,169) | (1,408,774) | (1,275,472)
Contributions in aid of construction | 27,716 | 23,708 | 64,296
Allowance for borrowed funds used during construction | (25,180) | (22,112) | (19,970)
Proceeds from nuclear decommissioning trust sales and other special use funds | 653,033 | 542,246 | 633,410
Investment in nuclear decommissioning trust and other special use funds | (672,165) | (544,527) | (635,691)
Other | 1,941 | (19,078) | (18,651)
Net cash flow used for investing activities | (1,192,824) | (1,428,537) | (1,252,078)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Issuance of long-term debt | 445,245 | 848,239 | 693,151
Repayment of long-term debt | (182,000) | (125,000) | (370,430)
Short-term borrowings and (repayments) — net | (7,000) | (107,800) | 137,200
Short-term debt borrowings under revolving credit facility | 45,000 | 58,000 | 40,000
Short-term debt repayments under revolving credit facility | (57,000) | (32,000) | 0
Dividends paid on common stock | (308,892) | (289,793) | (274,229)
Common stock equity issuance and purchases - net | (5,055) | (13,390) | (4,867)
Distributions to noncontrolling interests | (22,744) | (22,744) | (22,744)
Net cash flow (used for) provided by financing activities | (92,446) | 315,512 | 198,081
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | (8,126) | 5,011 | (30,607)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR | 13,892 | 8,881 | 39,488
CASH AND CASH EQUIVALENTS AT END OF YEAR | 5,766 | 13,892 | 8,881
Supplemental disclosure of cash flow information: |  |  |
Income taxes, net of refunds | 21,173 | 2,186 | 9,956
Interest, net of amounts capitalized | 208,479 | 189,288 | 184,462
Significant non-cash investing and financing activities: |  |  |
Accrued capital expenditures | 132,620 | 130,404 | 114,855
Dividends declared but not paid | 82,675 | 77,667 | 72,926
ARIZONA PUBLIC SERVICE COMPANY |  |  |
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | 589,758 | 523,802 | 481,634
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization including nuclear fuel | 649,295 | 608,935 | 564,091
Deferred fuel and purchased power | (78,277) | (48,405) | (60,303)
Deferred fuel and purchased power amortization | 116,750 | (14,767) | 38,152
Allowance for equity funds used during construction | (52,319) | (47,011) | (42,140)
Deferred income taxes | 59,927 | 249,465 | 221,167
Deferred investment tax credit | (5,170) | (4,587) | 23,082
Change in derivative instruments fair value | 0 | (373) | (403)
Changes in current assets and liabilities: |  |  |
Customer and other receivables | 35,406 | (68,040) | (1,601)
Accrued unbilled revenues | (24,736) | (4,485) | (11,709)
Materials, supplies and fossil fuel | (6,206) | (6,503) | (1,454)
Income tax receivable | 0 | 11,174 | (14,567)
Other current assets | 31,707 | (6,775) | (21,640)
Accounts payable | (15,608) | (26,561) | (67,543)
Accrued taxes | 19,008 | 26,773 | (13,912)
Other current liabilities | 25,070 | 27,912 | 5,097
Change in margin and collateral accounts — assets | 143 | (300) | 673
Change in margin and collateral accounts — liabilities | (2,211) | (533) | 17,735
Change in unrecognized tax benefits | (1,235) | 5,891 | 1,628
Change in long-term regulatory liabilities | (109,284) | 45,764 | 14,682
Change in other long-term assets | 77,952 | (78,540) | (45,866)
Change in other long-term liabilities | (55,169) | (31,106) | (76,855)
Net cash flow provided by operating activities | 1,254,801 | 1,161,730 | 1,009,948
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Capital expenditures | (1,169,061) | (1,381,930) | (1,248,010)
Contributions in aid of construction | 27,716 | 23,708 | 64,296
Allowance for borrowed funds used during construction | (25,180) | (22,112) | (19,481)
Proceeds from nuclear decommissioning trust sales and other special use funds | 653,033 | 542,246 | 633,410
Investment in nuclear decommissioning trust and other special use funds | (672,165) | (544,527) | (635,691)
Other | (1,789) | (18,538) | (13,865)
Net cash flow used for investing activities | (1,187,446) | (1,401,153) | (1,219,341)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Issuance of long-term debt | 295,245 | 549,478 | 693,151
Repayment of long-term debt | (182,000) | 0 | (370,430)
Short-term borrowings and (repayments) — net | 0 | (135,500) | 135,500
Short-term debt borrowings under revolving credit facility | 25,000 | 0 | 0
Short-term debt repayments under revolving credit facility | (25,000) | 0 | 0
Dividends paid on common stock | (316,000) | (296,800) | (281,300)
Equity infusion from Pinnacle West | 150,000 | 150,000 | 42,000
Distributions to noncontrolling interests | (22,744) | (22,744) | (22,744)
Net cash flow (used for) provided by financing activities | (75,499) | 244,434 | 196,177
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | (8,144) | 5,011 | (13,216)
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR | 13,851 | 8,840 | 22,056
CASH AND CASH EQUIVALENTS AT END OF YEAR | 5,707 | 13,851 | 8,840
Supplemental disclosure of cash flow information: |  |  |
Income taxes, net of refunds | 77,942 | (14,098) | 26,864
Interest, net of amounts capitalized | 196,419 | 184,210 | 181,809
Significant non-cash investing and financing activities: |  |  |
Accrued capital expenditures | 132,620 | 130,057 | 114,874
Dividends declared but not paid | $ 82,700 | $ 77,700 | $ 72,900

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