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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Cash flows provided by (used in) operating activities: |  |  |
Net income |  | $ 57,979 | $ 67,267
Adjustment to reconcile net income to net cash provided by (used in) operating activities: |  |  |
(Increase) decrease in fair value of derivative instruments |  | 3,891 | (8,788)
Depreciation and amortization |  | 13,923 | 14,118
Provision (recovery) for losses on accounts receivable |  | 1,525 | (448)
Change in deferred taxes |  | 7,121 | 8,295
Change in weather hedge contract receivable |  |  | (12,500)
Changes in operating assets and liabilities: |  |  |
Increase in receivables |  | (111,631) | (37,778)
Decrease in inventories |  | 642 | 10,243
(Increase) decrease in other assets |  | 796 | (1,889)
Increase (decrease) in accounts payable |  | 6,797 | (1,274)
Decrease in customer credit balances |  | (53,873) | (15,217)
Increase in other current and long-term liabilities |  | 36,954 | 52,206
Net cash provided by (used in) operating activities |  | (35,876) | 74,235
Cash flows provided by (used in) investing activities: |  |  |
Capital expenditures |  | (7,786) | (5,482)
Proceeds from sales of fixed assets |  | 132 | 254
Purchase of investments | [1] | (11,474) |
Acquisitions |  | (7,651) | (7,615)
Net cash used in investing activities |  | (26,779) | (12,843)
Cash flows used in financing activities: |  |  |
Term loan repayment |  | (11,200) | (2,500)
Distributions |  | (11,719) | (11,102)
Unit repurchases |  |  | (707)
Customer retainage payments |  | (409) | (680)
Payments of debt issue costs |  | (60) | (297)
Net cash used in financing activities |  | (23,388) | (15,286)
Net (decrease) increase in cash, cash equivalents, and restricted cash |  | (86,043) | 46,106
Cash, cash equivalents, and restricted cash at beginning of period |  | 139,188 | 100,508
Cash, cash equivalents, and restricted cash at end of period |  | $ 53,145 | $ 146,614
[1] | See Note 2 - Investments

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