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Revenue and Accounts Receivable
 3 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Revenue and Accounts Receivable Revenue and Accounts Receivable
Revenue
Our revenue recognition policy is fully described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2022. 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 months ended December 31, 2022 and 2021.
Three Months Ended December 31, 2022Three Months Ended December 31, 2021
DistributionPipeline and StorageDistributionPipeline and Storage
(In thousands)
Gas sales revenues:
Residential$953,051 $— $575,841 $— 
Commercial388,667 — 250,761 — 
Industrial59,215 — 48,681 — 
Public authority and other22,826 — 15,192 — 
Total gas sales revenues1,423,759 — 890,475 — 
Transportation revenues32,162 195,252 27,869 163,859 
Miscellaneous revenues2,282 2,722 2,599 6,543 
Revenues from contracts with customers1,458,203 197,974 920,943 170,402 
Alternative revenue program revenues (1)
(18,322)(11,345)50,986 (7,484)
Other revenues545 — 493 — 
Total operating revenues$1,440,426 $186,629 $972,422 $162,918 
(1)    In our distribution segment, we have weather-normalization adjustment mechanisms that serve to mitigate the effects of weather on our revenue. Additionally, APT has a regulatory mechanism that requires that we share with its tariffed customers 75% of the difference between the total non-tariffed revenues earned during a test period and a revenue benchmark.
Accounts receivable and allowance for uncollectible accounts
Accounts receivable arise from natural gas sales to residential, commercial, industrial, public authority and other customers. Our accounts receivable balance includes unbilled amounts which represent a customer’s consumption of gas from the date of the last cycle billing through the last day of the month. Our policy related to the accounting for our accounts receivable and allowance for uncollectible accounts is fully described in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended September 30, 2022. During the three months ended December 31, 2022, there were no material changes to this policy. Rollforwards of our allowance for uncollectible accounts for the three months ended December 31, 2022 and 2021 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 81 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.
 Three Months Ended December 31, 2022
 (In thousands)
Beginning balance, September 30, 2022$49,993 
Current period provisions7,233 
Write-offs charged against allowance(10,421)
Recoveries of amounts previously written off808 
Ending balance, December 31, 2022
$47,613 
 Three Months Ended December 31, 2021
 (In thousands)
Beginning balance, September 30, 2021$64,471 
Current period provisions6,370 
Write-offs charged against allowance(6,429)
Recoveries of amounts previously written off522 
Ending balance, December 31, 2021
$64,934