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CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net income | $ 105,675 | $ 111,892
Adjustments to reconcile net income to cash flows from operating activities: |  |
Unrealized loss (gain) on derivative instruments | 20,466 | (15,353)
Depreciation and amortization | 23,024 | 20,039
Allowance for equity used during construction | (1,333) | (139)
Allowance for bad debt expense | 1,341 | 1,586
Deferred income taxes | 14,639 | 20,920
Manufactured gas plant remediation costs | (3,254) | (4,964)
Equity in earnings of affiliates, net of distributions received | 1,835 | 3,852
Cost of removal - asset retirement obligations | (137) | (368)
Contributions to postemployment benefit plans | (23,102) | (22,982)
Changes in: |  |
Components of working capital | (44,510) | (31,567)
Other noncurrent assets | 5,198 | 11,690
Other noncurrent liabilities | 8,539 | 10,018
Cash flows from operating activities | 108,381 | 104,624
CASH FLOWS (USED IN) INVESTING ACTIVITIES |  |
Utility plant expenditures | (51,376) | (42,380)
Solar equipment expenditures | (24,865) | (61,786)
Real estate properties and other expenditures | (298) | (459)
Cost of removal expenditures | (14,323) | (6,765)
Distribution from equity investees | 648 | 0
Withdrawal from restricted cash construction fund | 0 | 136
Cash flows (used in) investing activities | (90,214) | (111,254)
CASH FLOWS (USED IN) FROM FINANCING ACTIVITIES |  |
Proceeds from issuance of common stock | 6,922 | 7,164
Tax benefit from stock options exercised | 79 | 222
Proceeds from sale-leaseback transaction | 7,076 | 6,522
Payments of long-term debt | (3,833) | (3,371)
Purchases of treasury stock | (1,311) | (4,800)
Payments of common stock dividends | (33,913) | (30,695)
Net proceeds from short-term debt | 8,300 | 31,950
Cash flows (used in) from financing activities | (16,680) | 6,992
Change in cash and cash equivalents | 1,487 | 362
Cash and cash equivalents at beginning of period | 4,509 | 7,440
Cash and cash equivalents at end of period | 5,996 | 7,802
CHANGES IN COMPONENTS OF WORKING CAPITAL |  |
Receivables | (245,241) | 19,773
Inventories | 92,822 | 118,920
Recovery of gas costs | (542) | (21,177)
Gas purchases payable | 88,263 | (80,941)
Prepaid and accrued taxes | 46,900 | 47,025
Accounts payable and other | (5,070) | (4,573)
Restricted broker margin accounts | (10,196) | (14,249)
Customers' credit balances and deposits | (30,579) | (82,321)
Other current assets | 19,133 | (14,024)
Components of working capital | (44,510) | (31,567)
SUPPLEMENTAL DISCLOSURES OF CASH FLOWS INFORMATION |  |
Cash paid for Interest (net of amounts capitalized) | 10,207 | 8,324
Cash paid for Income taxes | 4,111 | 814
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING ACTIVITIES |  |
Accrued capital expenditures | $ (9,463) | $ 5,041

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- Definition Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The gross proceeds received from the asset(s) sold in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller less the costs incurred in connection with the transaction, such as closing and deferred financing costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 98 -Section Appendix A -Paragraph 28, 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 33 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=9155692&loc=d3e51843-112757 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=9155692&loc=d3e51831-112757 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 51 -URI http://asc.fasb.org/extlink&oid=9155692&loc=d3e51840-112757 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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