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Unaudited Financial Information (Table)
3 Months Ended
Dec. 31, 2013
Regulatory Assets And Liabilities Table [Abstract]  
Regulatory assets and liabilities table
Significant regulatory assets and liabilities as of December 31, 2013 and September 30, 2013 included the following:
 
December 31,
2013
 
September 30,
2013
 
(In thousands)
Regulatory assets:
 
 
 
Pension and postretirement benefit costs(1)
$
180,512

 
$
187,977

Merger and integration costs, net
5,120

 
5,250

Deferred gas costs
8,630

 
15,152

Regulatory cost of removal asset
9,998

 
10,008

Rate case costs
5,806

 
6,329

Texas Rule 8.209(2)
31,838

 
30,364

APT annual adjustment mechanism
5,773

 
5,853

Recoverable loss on reacquired debt
20,796

 
21,435

Other
4,480

 
4,380

 
$
272,953

 
$
286,748

Regulatory liabilities:
 
 
 
Deferred gas costs
$
50,094

 
$
16,481

Deferred franchise fees
4,792

 
1,689

Regulatory cost of removal obligation
425,028

 
427,524

Other
9,788

 
7,887

 
$
489,702

 
$
453,581


 
(1) 
Includes $18.2 million and $17.4 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.