Revenue and Accounts Receivable (Tables)

9 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

The following tables disaggregate our revenue from contracts with customers by customer type and segment and provide a reconciliation to total operating revenues, including intersegment revenues, for the three and nine months ended June 30, 2024 and 2023.


	Three Months Ended June 30, 2024				Three Months Ended June 30, 2023
	Distribution		Pipeline and Storage		Distribution		Pipeline and Storage
	(In thousands)
Gas sales revenues:
Residential	$	384,957	$	—	$	380,099	$	—
Commercial	169,508		—		165,930		—
Industrial	21,160		—		23,533		—
Public authority and other	8,177		—		8,562		—
Total gas sales revenues	583,802		—		578,124		—
Transportation revenues	30,773		260,779		27,988		212,322
Miscellaneous revenues	2,681		7,592		2,706		4,397
Revenues from contracts with customers	617,256		268,371		608,818		216,719
Alternative revenue program revenues	11,997		(17,691)		6,772		(8,494)
Other revenues	3,958		—		477		—
Total operating revenues	$	633,211	$	250,680	$	616,067	$	208,225



	Nine Months Ended June 30, 2024				Nine Months Ended June 30, 2023
	Distribution		Pipeline and Storage		Distribution		Pipeline and Storage
	(In thousands)
Gas sales revenues:
Residential	$	2,177,935	$	—	$	2,276,240	$	—
Commercial	851,462		—		953,409		—
Industrial	79,810		—		127,792		—
Public authority and other	43,881		—		54,074		—
Total gas sales revenues	3,153,088		—		3,411,515		—
Transportation revenues	102,147		699,243		93,661		597,822
Miscellaneous revenues	9,048		12,796		7,650		8,271
Revenues from contracts with customers	3,264,283		712,039		3,512,826		606,093
Alternative revenue program revenues	51,713		(26,703)		42,360		(26,815)
Other revenues	11,734		—		1,517		—
Total operating revenues	$	3,327,730	$	685,336	$	3,556,703	$	579,278

Schedule of Allowance for Credit Loss Activity

Rollforwards of our allowance for uncollectible accounts for the three and nine months ended June 30, 2024 and 2023 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 88 percent of our customers as we have the ability to collect these gas costs through our gas cost recovery mechanisms in most of our jurisdictions.

In December 2023, the Mississippi Public Service Commission approved the recovery of uncollectible accounts through our purchased gas cost mechanism over a two-year period rather than through our annual filing mechanism over a one-year period. As a result of this decision, we recorded a $13.9 million reduction to bad debt expense during the first quarter of fiscal 2024. Of this amount, $9.7 million represents future recovery of customer receivables previously written off since April 2022 but not yet recovered through our rates. This amount increased our deferred gas cost regulatory asset. The remaining $4.2 million reduction represents a reversal of our allowance for uncollectible accounts for customer balances that have not yet been written off.


	Three Months Ended June 30, 2024
	(In thousands)
Beginning balance, March 31, 2024	$	42,705
Current period provisions	3,575
Write-offs charged against allowance	(4,407)
Recoveries of amounts previously written off	286

Ending balance, June 30, 2024	$	42,159


	Three Months Ended June 30, 2023
	(In thousands)
Beginning balance, March 31, 2023	$	52,751
Current period provisions	1,758
Write-offs charged against allowance	(5,902)
Recoveries of amounts previously written off	294
Ending balance, June 30, 2023	$	48,901



	Nine Months Ended June 30, 2024
	(In thousands)
Beginning balance, September 30, 2023	$	40,840
Current period provisions	23,122
Write-offs charged against allowance	(19,023)
Recoveries of amounts previously written off	1,412
Mississippi recovery of uncollectible accounts	(4,192)
Ending balance, June 30, 2024	$	42,159



	Nine Months Ended June 30, 2023
	(In thousands)
Beginning balance, September 30, 2022	$	49,993
Current period provisions	22,000
Write-offs charged against allowance	(24,656)
Recoveries of amounts previously written off	1,564
Ending balance, June 30, 2023	$	48,901