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Unaudited Financial Information (Table)
9 Months Ended
Jun. 30, 2013
Regulatory Assets And Liabilities Table [Abstract]  
Regulatory assets and liabilities table
Significant regulatory assets and liabilities as of June 30, 2013 and September 30, 2012 included the following:
 
June 30,
2013
 
September 30,
2012
 
(In thousands)
Regulatory assets:
 
 
 
Pension and postretirement benefit costs(1)
$
280,136

 
$
296,160

Merger and integration costs, net
5,376

 
5,754

Deferred gas costs
1,271

 
31,359

Regulatory cost of removal asset
6,058

 
10,500

Rate case costs
6,207

 
4,661

Deferred franchise fees
242

 
2,714

Texas Rule 8.209(2)
21,351

 
5,370

APT annual adjustment mechanism
5,167

 
4,539

Other
1,935

 
7,262

 
$
327,743

 
$
368,319

Regulatory liabilities:
 
 
 
Deferred gas costs
$
30,773

 
$
23,072

Deferred franchise fees
2,097

 

Regulatory cost of removal obligation
426,656

 
459,688

Other
5,398

 
5,637

 
$
464,924

 
$
488,397


 
(1) 
Includes $15.5 million and $7.6 million of pension and postretirement expense deferred pursuant to regulatory authorization.
(2) 
Texas Rule 8.209 is a Railroad Commission rule that allows for the deferral of all expenses associated with capital expenditures incurred pursuant to this rule, including the recording of interest on the deferred expenses until the next rate proceeding (rate case or annual rate filing), at which time investment and costs would be recovered through base rates.