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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating activities |  |  |
Net income | $ 1,499,706 | $ 612,809 | $ 1,278,577
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 621,701 | 578,662 | 476,535
Impairment charges | 0 | 644,930 | 0
Equity in net earnings from investments | (122,520) | (143,241) | (154,541)
Distributions received from unconsolidated affiliates | 123,010 | 144,352 | 163,476
Deferred income tax expense | 472,057 | 186,730 | 372,729
Other, net | 94,091 | 35,327 | (26,101)
Changes in assets and liabilities: |  |  |
Accounts receivable | (610,531) | (1,297) | (19,688)
NGLs and natural gas in storage, net of commodity imbalances | (105,038) | 172,316 | (10,193)
Accounts payable | 622,425 | (80,257) | (62,946)
Risk-management assets and liabilities | (93,713) | (187,458) | (86,268)
Other assets and liabilities, net | 45,084 | (63,805) | 15,199
Cash provided by operating activities | 2,546,272 | 1,899,068 | 1,946,779
Investing activities |  |  |
Capital expenditures (less allowance for equity funds used during construction) | (696,854) | (2,195,381) | (3,848,349)
Distributions received from unconsolidated affiliates in excess of cumulative earnings | 19,363 | 31,808 | 94,168
Other, net | 12,199 | (106,956) | (14,577)
Cash used in investing activities | (665,292) | (2,270,529) | (3,768,758)
Financing activities |  |  |
Dividends paid | (1,667,431) | (1,605,366) | (1,457,628)
Borrowing (repayment) of short-term borrowings, net | 0 | (220,000) | 220,000
Issuance of long-term debt, net of discounts | 0 | 3,244,777 | 4,185,435
Repayment of long-term debt | (604,894) | (1,457,222) | (1,057,348)
Issuance of common stock | 32,791 | 969,759 | 29,040
Other | (19,551) | (56,949) | (88,537)
Cash provided by (used in) financing activities | (2,259,085) | 874,999 | 1,830,962
Change in cash and cash equivalents | (378,105) | 503,538 | 8,983
Cash and cash equivalents at beginning of period | 524,496 | 20,958 | 11,975
Cash and cash equivalents at end of period | 146,391 | 524,496 | 20,958
Supplemental cash flow information: |  |  |
Cash paid for interest, net of amounts capitalized | 691,897 | 760,984 | 435,165
Cash paid for income taxes, net of refunds | $ 8,864 | $ 342 | $ 2,690

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