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v3.20.1

Revenue (Tables) | 6 Months Ended
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Mar. 31, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following tables summarize revenue by customer, product and income statement classification:
| Three months ended March 31, 2020 |  | Three months ended March 31, 2019
| Gas utility | Non utility | Total operating revenues |  | Gas utility | Non utility | Total operating revenues
Natural Gas (Billed and Unbilled): |  |  |  |  |  |  |
Residential | $ | 12,892,659 |  | $ | — |  | $ | 12,892,659 |  |  | $ | 15,397,504 |  | $ | — |  | $ | 15,397,504 |
Commercial | 6,368,939 |  | — |  | 6,368,939 |  |  | 8,357,598 |  | — |  | 8,357,598 |
Industrial and Transportation | 1,243,426 |  | — |  | 1,243,426 |  |  | 1,249,316 |  | — |  | 1,249,316 |
Other | 117,466 |  | 162,012 |  | 279,478 |  |  | 108,418 |  | 216,210 |  | 324,628 |
Total contracts with customers | 20,622,490 |  | 162,012 |  | 20,784,502 |  |  | 25,112,836 |  | 216,210 |  | 25,329,046 |
Alternative Revenue Programs | 1,653,229 |  | — |  | 1,653,229 |  |  | (54,087 | ) | — |  | (54,087 | )
Total operating revenues | $ | 22,275,719 |  | $ | 162,012 |  | $ | 22,437,731 |  |  | $ | 25,058,749 |  | $ | 216,210 |  | $ | 25,274,959 |
| Six months ended March 31, 2020 |  | Six months ended March 31, 2019
| Gas utility | Non utility | Total operating revenues |  | Gas utility | Non utility | Total operating revenues
Natural Gas (Billed and Unbilled): |  |  |  |  |  |  |
Residential | $ | 25,177,242 |  | $ | — |  | $ | 25,177,242 |  |  | $ | 28,410,332 |  | $ | — |  | $ | 28,410,332 |
Commercial | 12,102,779 |  | — |  | 12,102,779 |  |  | 15,700,155 |  | — |  | 15,700,155 |
Industrial and Transportation | 2,570,669 |  | — |  | 2,570,669 |  |  | 2,475,364 |  | — |  | 2,475,364 |
Revenue reductions (TCJA) (1) | — |  | — |  | — |  |  | (523,881 | ) | — |  | (523,881 | )
Other | 333,461 |  | 321,859 |  | 655,320 |  |  | 334,908 |  | 396,376 |  | 731,284 |
Total contracts with customers | 40,184,151 |  | 321,859 |  | 40,506,010 |  |  | 46,396,878 |  | 396,376 |  | 46,793,254 |
Alternative Revenue Programs | 1,717,174 |  | — |  | 1,717,174 |  |  | (301,548 | ) | — |  | (301,548 | )
Total operating revenues | $ | 41,901,325 |  | $ | 321,859 |  | $ | 42,223,184 |  |  | $ | 46,095,330 |  | $ | 396,376 |  | $ | 46,491,706 |
(1) Accrued refund associated with excess revenue collected in tariff rates associated with the reduction in federal income tax rates. See Note 4 for more information.
Schedule of Customer Accounts Receivable | The balances of customer receivables are provided below:
| Current Assets |  | Current Liabilities
| Trade accounts receivable (1) | Unbilled revenue (1) |  | Customer credit balances | Customer deposits
Balance at September 30, 2019 | $ | 2,590,702 |  | $ | 1,236,384 |  |  | $ | 880,295 |  | $ | 1,432,031 |
Balance at March 31, 2020 | 3,776,033 |  | 1,539,460 |  |  | 1,361,720 |  | 1,622,779 |
Increase | $ | 1,185,331 |  | $ | 303,076 |  |  | $ | 481,425 |  | $ | 190,748 |
(1) Included in accounts receivable in the condensed consolidated balance sheet. Amounts shown net of reserve for bad debts.

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