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Revenue and Accounts Receivable
6 Months Ended
Mar. 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, 2021. 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 six months ended March 31, 2022 and 2021.
Three Months Ended March 31, 2022Three Months Ended March 31, 2021
DistributionPipeline and StorageDistributionPipeline and Storage
(In thousands)
Gas sales revenues:
Residential$1,090,702 $— $893,720 $— 
Commercial428,330 — 326,182 — 
Industrial54,372 — 31,066 — 
Public authority and other26,396 — 20,227 — 
Total gas sales revenues1,599,800 — 1,271,195 — 
Transportation revenues32,801 163,850 30,973 151,565 
Miscellaneous revenues2,680 2,284 3,325 3,878 
Revenues from contracts with customers1,635,281 166,134 1,305,493 155,443 
Alternative revenue program revenues (1)
(25,246)(2,387)(23,313)(1,275)
Other revenues511 — 494 — 
Total operating revenues$1,610,546 $163,747 $1,282,674 $154,168 
Six Months Ended March 31, 2022Six Months Ended March 31, 2021
DistributionPipeline and StorageDistributionPipeline and Storage
(In thousands)
Gas sales revenues:
Residential$1,666,543 $— $1,485,554 $— 
Commercial679,091 — 535,129 — 
Industrial103,053 — 55,774 — 
Public authority and other41,588 — 33,289 — 
Total gas sales revenues2,490,275 — 2,109,746 — 
Transportation revenues60,670 327,709 58,740 316,326 
Miscellaneous revenues5,279 8,827 5,721 9,026 
Revenues from contracts with customers2,556,224 336,536 2,174,207 325,352 
Alternative revenue program revenues (1)
25,740 (9,871)(15,872)(11,471)
Other revenues1,004 — 989 — 
Total operating revenues$2,582,968 $326,665 $2,159,324 $313,881 
(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 regulatorily determined 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. The receivable balances are short term and generally do not extend beyond one month. To minimize credit risk, we assess the credit worthiness of new customers, require deposits where necessary, assess late fees, pursue collection activities and disconnect service for nonpayment. After disconnection, accounts are written off when deemed uncollectible.
Our policy related to the accounting for our 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, 2021. During the six months ended March 31, 2022, there were no material changes to this policy. Rollforwards of our allowance for uncollectible accounts for the three and six months ended March 31, 2022 and 2021 are presented in the table below. The allowance excludes the gas cost portion of customers’ bills for approximately 79 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 March 31, 2022
 (In thousands)
Beginning balance, December 31, 2021$64,934 
Current period provisions5,705 
Write-offs charged against allowance(9,029)
Recoveries of amounts previously written off603 
Ending balance, March 31, 2022
$62,213 
 Three Months Ended March 31, 2021
 (In thousands)
Beginning balance, December 31, 2020$35,089 
Current period provisions11,532 
Write-offs charged against allowance(2,381)
Recoveries of amounts previously written off440 
Ending balance, March 31, 2021
$44,680 
 Six Months Ended March 31, 2022
 (In thousands)
Beginning balance, September 30, 2021
$64,471 
Current period provisions12,075 
Write-offs charged against allowance(15,458)
Recoveries of amounts previously written off1,125 
Ending balance, March 31, 2022
$62,213 
 Six Months Ended March 31, 2021
 (In thousands)
Beginning balance, September 30, 2020
$29,949 
Current period provisions18,469 
Write-offs charged against allowance(4,669)
Recoveries of amounts previously written off931 
Ending balance, March 31, 2021
$44,680