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Segment Information (Table)
 3 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
Income statements and capital expenditures for the three months ended December 31, 2017 and 2016 by segment are presented in the following tables:
 
Three Months Ended December 31, 2017
 
Distribution
 
Pipeline and Storage
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
860,453

 
$
28,739

 
$
—

 
$
889,192

Intersegment revenues
339

 
97,724

 
(98,063
)
 
—

Total operating revenues
860,792

 
126,463

 
(98,063
)
 
889,192

Purchased gas cost
463,758

 
912

 
(97,753
)
 
366,917

Operation and maintenance expense
103,737

 
26,140

 
(310
)
 
129,567

Depreciation and amortization expense
65,434

 
22,940

 
—

 
88,374

Taxes, other than income
55,107

 
7,666

 
—

 
62,773

Operating income
172,756

 
68,805

 
—

 
241,561

Miscellaneous expense
(1,400
)
 
(635
)
 
—

 
(2,035
)
Interest charges
21,368

 
10,141

 
—

 
31,509

Income before income taxes
149,988

 
58,029

 
—

 
208,017

Income tax benefit
(99,111
)
 
(7,004
)
 
—

 
(106,115
)
Net income
$
249,099

 
$
65,033

 
$
—

 
$
314,132

Capital expenditures
$
241,249

 
$
141,989

 
$
—

 
$
383,238



 
Three Months Ended December 31, 2016
 
Distribution
 
Pipeline and Storage
 
Natural Gas Marketing
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
754,266

 
$
25,902

 
$
—

 
$
—

 
$
780,168

Intersegment revenues
390

 
84,050

 
—

 
(84,440
)
 
—

Total operating revenues
754,656

 
109,952

 
—

 
(84,440
)
 
780,168

Purchased gas cost
395,346

 
355

 
—

 
(84,396
)
 
311,305

Operation and maintenance expense
92,714

 
32,268

 
—

 
(44
)
 
124,938

Depreciation and amortization expense
61,157

 
15,801

 
—

 
—

 
76,958

Taxes, other than income
50,546

 
6,503

 
—

 
—

 
57,049

Operating income
154,893

 
55,025

 
—

 
—

 
209,918

Miscellaneous expense
(633
)
 
(361
)
 
—

 
—

 
(994
)
Interest charges
21,118

 
9,912

 
—

 
—

 
31,030

Income from continuing operations before income taxes
133,142

 
44,752

 
—

 
—

 
177,894

Income tax expense
47,778

 
16,078

 
—

 
—

 
63,856

Income from continuing operations
85,364

 
28,674

 
—

 
—

 
114,038

Income from discontinued operations, net of tax
—

 
—

 
10,994

 
—

 
10,994

Net income
$
85,364

 
$
28,674

 
$
10,994

 
$
—

 
$
125,032

Capital expenditures
$
222,484

 
$
75,478

 
$
—

 
$
—

 
$
297,962



 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 



Balance sheet information at December 31, 2017 and September 30, 2017 by segment is presented in the following tables:

 
December 31, 2017
 
Distribution
 
Pipeline and Storage
 
Eliminations
 
Consolidated
 
(In thousands)
Property, plant and equipment, net
$
7,010,709

 
$
2,508,083

 
$
—

 
$
9,518,792

Total assets
$
10,633,234

 
$
2,729,455

 
$
(2,097,969
)
 
$
11,264,720


 
September 30, 2017
 
Distribution
 
Pipeline and Storage
 
Eliminations
 
Consolidated
 
(In thousands)
Property, plant and equipment, net
$
6,849,517

 
$
2,409,665

 
$
—

 
$
9,259,182

Total assets
$
10,050,164

 
$
2,621,601

 
$
(1,922,169
)
 
$
10,749,596