Revenue (Tables)

12 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables summarize revenue by customer, product and income statement classification for the years ended September 30:

	2020
	Gas utility		Non-utility		Total operating revenues
Natural Gas (Billed and Unbilled):
Residential	$	37,022,219	$	—	$	37,022,219
Commercial	18,387,674		—		18,387,674
Industrial and Transportation	5,188,069		—		5,188,069
Other	489,943		666,466		1,156,409
Total contracts with customers	61,087,905		666,466		61,754,371
Alternative Revenue Programs	1,321,020		—		1,321,020
Total operating revenues	$	62,408,925	$	666,466	$	63,075,391
	2019
	Gas utility		Non-utility		Total operating revenues
Natural Gas (Billed and Unbilled):
Residential	$	39,519,618	$	—	$	39,519,618
Commercial	22,562,265		—		22,562,265
Industrial and Transportation	4,770,657		—		4,770,657
Revenue reductions (TCJA) (1)	(523,881)		—		(523,881)
Other	592,156		720,265		1,312,421
Total contracts with customers	66,920,815		720,265		67,641,080
Alternative Revenue Programs	385,445		—		385,445
Total operating revenues	$	67,306,260	$	720,265	$	68,026,525
(1) Accrued refund associated with excess revenue collected in tariff rates associated with the reduction in federal income tax rates.

Customer Receivables

The balances of customer receivables are provided below:

	Current Assets				Current Liabilities
	Trade accounts receivable (1)		Unbilled revenue (1)		Customer credit balances		Customer deposits
September 30, 2019	$	2,590,702	$	1,236,384	$	880,295	$	1,432,031
September 30, 2020	2,343,492		1,041,518		1,587,061		1,611,476
Increase (decrease)	$	(247,210)	$	(194,866)	$	706,766	$	179,445
(1) Included in "Accounts receivable, net" in the consolidated balance sheet. Amounts shown net of reserve for bad debts.