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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net (loss) income | [1] | $ 159,821 | $ 263,965
Adjustments to reconcile net income to cash flows from operating activities |  |  |
Unrealized (gain) loss on derivative instruments |  | (707) | 23,246
Realized and unrealized gains on investments in equity securities |  | (1,567) | (5,332)
Gain on sale of businesses |  | (645) | (3,722)
Depreciation and amortization |  | 44,143 | 44,314
Amortization of acquired wholesale energy contracts |  | 7,346 | 17,911
Allowance for equity used during construction |  | (3,602) | (2,051)
Allowance for doubtful accounts |  | 1,149 | 994
Deferred income taxes |  | 16,337 | 28,169
Deferred income tax benefit due to the Tax Act |  | 0 | (58,532)
Manufactured gas plant remediation costs |  | (4,353) | (7,219)
Equity in earnings, net of distributions received from equity investees |  | (1,836) | (272)
Cost of removal - asset retirement obligations |  | (130) | (334)
Contributions to postemployment benefit plans |  | (1,909) | (1,648)
Tax benefit from stock-based compensation |  | 1,284 | 2,841
Changes in: |  |  |
Components of working capital |  | (71,746) | (27,122)
Other noncurrent assets |  | 13,483 | 38,462
Other noncurrent liabilities |  | 14,719 | (1,199)
Cash flows from operating activities |  | 171,787 | 312,471
Expenditures for: |  |  |
Utility plant |  | (121,962) | (69,695)
Solar equipment |  | (52,520) | (58,992)
Midstream and other |  | (5,786) | (3,159)
Cost of removal |  | (17,134) | (33,092)
Distribution from equity investees in excess of equity in earnings |  | 1,154 | 1,315
Investments in equity investees |  | (1,457) | (11,177)
Cash paid related to acquisition |  | 0 | (10,000)
Proceeds from sale of businesses, net of closing costs |  | 205,745 | 9,399
Proceeds from sale of investments in equity securities, net |  | 34,484 | 6,616
Cash flows from (used in) investing activities |  | 42,524 | (168,785)
CASH FLOWS USED IN FINANCING ACTIVITIES |  |  |
Payments of long-term debt |  | (12,005) | (5,346)
Payments of short-term debt, net |  | (106,050) | (115,100)
Proceeds from sale-leaseback transaction |  | 9,895 | 7,820
Payments of common stock dividends |  | (51,750) | (47,459)
Proceeds from waiver discount issuance of common stock |  | 24,539 | 22,690
Proceeds from issuance of common stock |  | 9,522 | 9,876
Tax withholding payments related to net settled stock compensation |  | (6,607) | (13,420)
Cash flows used in financing activities |  | (132,456) | (140,939)
Change in cash, cash equivalents and restricted cash |  | 81,855 | 2,747
Cash, cash equivalents and restricted cash at beginning of period |  | 1,710 | 2,469
Cash, cash equivalents and restricted cash at end of period |  | 83,565 | 5,216
CHANGES IN COMPONENTS OF WORKING CAPITAL |  |  |
Receivables |  | (105,900) | (151,220)
Inventories |  | 125,810 | 128,895
Recovery of gas costs |  | (14,989) | 20,260
Gas purchases payable |  | (21,544) | 18,928
Prepaid and accrued taxes |  | (4,555) | 15,879
Accounts payable and other |  | (35,953) | (17,541)
Restricted broker margin accounts |  | (2,217) | (29,164)
Customers' credit balances and deposits |  | (9,163) | (8,696)
Other current assets |  | (3,235) | (4,463)
Components of working capital |  | (71,746) | (27,122)
Cash paid for: |  |  |
Interest (net of amounts capitalized) |  | 27,454 | 23,765
Income taxes |  | 1,003 | 2,985
Accrued capital expenditures |  | 29,685 | 14,485
Inception gain on natural gas swap contract recognized as non-cash proceeds from sale of business |  | $ 0 | $ 14,579
[1] | Includes income tax benefit related to the Tax Act of $967,000 and $58.5 million, for the three and six months ended March 31, 2018, respectively.

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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 + Details
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