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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
CASH FLOWS USED IN OPERATING ACTIVITIES |  |
Net (loss) income | $ 86,248 | $ 123,699
Adjustments to reconcile net income to cash flows from operating activities |  |
Unrealized (gain) loss on derivative instruments | (10,932) | 34,855
Realized and unrealized gain on investments in equity securities | (257) | (5,332)
Depreciation and amortization | 21,832 | 21,854
Amortization of acquired wholesale energy contracts | 370 | 3,391
Allowance for equity used during construction | (1,751) | (852)
Allowance for doubtful accounts | 643 | 471
Deferred income taxes | (8,733) | 13,451
Deferred income tax benefit due to the Tax Act | 0 | (57,565)
Manufactured gas plant remediation costs | (2,593) | (5,147)
Equity in earnings, net of distributions received from equity investees | (830) | (257)
Cost of removal - asset retirement obligations | (65) | (332)
Contributions to postemployment benefit plans | (1,666) | (1,467)
Tax benefit from stock-based compensation | 1,279 | 2,831
Changes in: |  |
Components of working capital | (206,728) | (189,528)
Other noncurrent assets | 9,710 | 31,038
Other noncurrent liabilities | 8,718 | 5,388
Cash flows used in operating activities | (104,755) | (23,502)
Expenditures for: |  |
Utility plant | (51,359) | (34,638)
Solar equipment | (32,126) | (18,387)
Midstream and other | (2,420) | (1,313)
Cost of removal | (8,396) | (12,752)
Distribution from equity investees in excess of equity in earnings | 619 | 793
Investments in equity investees | 0 | (7,202)
Cash paid related to acquisition | 0 | (10,000)
Proceeds from sale of investments in equity securities, net | 0 | 6,616
Cash flows used in investing activities | (93,682) | (76,883)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Payments of long-term debt | (4,723) | (1,690)
Proceeds from short-term debt, net | 219,750 | 107,200
Proceeds from sale-leaseback transaction | 9,895 | 7,820
Payments of common stock dividends | (25,812) | (23,607)
Proceeds from waiver discount issuance of common stock | 7,964 | 22,690
Proceeds from issuance of common stock | 3,749 | 3,846
Tax withholding payments related to net settled stock compensation | (6,087) | (13,319)
Cash flows from financing activities | 204,736 | 102,940
Change in cash, cash equivalents and restricted cash | 6,299 | 2,555
Cash, cash equivalents and restricted cash at beginning of period | 1,710 | 2,469
Cash, cash equivalents and restricted cash at end of period | 8,009 | 5,024
CHANGES IN COMPONENTS OF WORKING CAPITAL |  |
Receivables | (161,039) | (192,253)
Inventories | (58,061) | (2,561)
Recovery of gas costs | (1,142) | 17,102
Gas purchases payable | 58,663 | 43,284
Prepaid and accrued taxes | 17,027 | (12,418)
Accounts payable and other | (47,498) | (25,527)
Restricted broker margin accounts | (9,963) | (21,694)
Customers' credit balances and deposits | 2,304 | 6,093
Other current assets | (7,019) | (1,554)
Components of working capital | (206,728) | (189,528)
Cash paid (received) for: |  |
Interest (net of amounts capitalized) | 16,002 | 9,758
Income taxes | 130 | (191)
Accrued capital expenditures | $ 19,791 | $ 26,034

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