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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Operating activities |  |
Net income (loss) | $ 386,176 | $ (141,857)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 157,120 | 132,353
Impairment charges | 0 | 641,754
Equity in net earnings from investments | (33,320) | (44,627)
Distributions received from unconsolidated affiliates | 30,862 | 41,577
Deferred income tax expense (benefit) | 119,194 | (55,949)
Other, net | 11,672 | (30,380)
Changes in assets and liabilities: |  |
Accounts receivable | (85,212) | 334,370
NGLs and natural gas in storage | (141,794) | 173,885
Accounts payable | 251,344 | (350,701)
Commodity imbalances | 18,415 | (37,919)
Accrued interest | (104,872) | (68,918)
Risk-management assets and liabilities | (19,302) | (78,856)
Other assets and liabilities | (56,966) | (92,011)
Cash provided by operating activities | 533,317 | 422,721
Investing activities |  |
Capital expenditures (less allowance for equity funds used during construction) | (176,734) | (949,679)
Distributions received from unconsolidated affiliates in excess of cumulative earnings | 10,191 | 6,949
Other, net | (4,148) | (22,062)
Cash used in investing activities | (170,691) | (964,792)
Financing activities |  |
Dividends paid | (416,229) | (386,667)
Repayment of short-term borrowings, net | 0 | (220,000)
Issuance of long-term debt, net of discounts | 0 | 1,748,221
Debt financing costs | 0 | (15,444)
Repayment of long-term debt | (56,492) | (52,389)
Other, net | (11,988) | (20,978)
Cash provided by (used in) financing activities | (484,709) | 1,052,743
Change in cash and cash equivalents | (122,083) | 510,672
Cash and cash equivalents at beginning of period | 524,496 | 20,958
Cash and cash equivalents at end of period | $ 402,413 | $ 531,630

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