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Segment Information (Table)
9 Months Ended
Jun. 30, 2015
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
Income statements for the three and nine month periods ended June 30, 2015 and 2014 by segment are presented in the following tables:
 
Three Months Ended June 30, 2015
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
415,160

 
$
25,859

 
$
245,382

 
$

 
$
686,401

Intersegment revenues
1,634

 
71,149

 
33,387

 
(106,170
)
 

 
416,794

 
97,008

 
278,769

 
(106,170
)
 
686,401

Purchased gas cost
149,775

 

 
260,990

 
(106,037
)
 
304,728

Gross profit
267,019

 
97,008

 
17,779

 
(133
)
 
381,673

Operating expenses
 
 
 
 
 
 
 
 
 
Operation and maintenance
98,552

 
26,572

 
7,456

 
(133
)
 
132,447

Depreciation and amortization
55,491

 
11,816

 
1,137

 

 
68,444

Taxes, other than income
56,176

 
6,193

 
806

 

 
63,175

Total operating expenses
210,219

 
44,581

 
9,399

 
(133
)
 
264,066

Operating income
56,800

 
52,427

 
8,380

 

 
117,607

Miscellaneous income (expense)
1,045

 
(211
)
 
345

 
(545
)
 
634

Interest charges
19,961

 
8,299

 
240

 
(545
)
 
27,955

Income before income taxes
37,884

 
43,917

 
8,485

 

 
90,286

Income tax expense
15,420

 
15,349

 
3,236

 

 
34,005

Net income
$
22,464

 
$
28,568

 
$
5,249

 
$

 
$
56,281

Capital expenditures
$
170,134

 
$
55,914

 
$
(209
)
 
$

 
$
225,839


 
Three Months Ended June 30, 2014
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
516,644

 
$
24,990

 
$
401,536

 
$

 
$
943,170

Intersegment revenues
1,063

 
62,199

 
63,949

 
(127,211
)
 

 
517,707

 
87,189

 
465,485

 
(127,211
)
 
943,170

Purchased gas cost
260,042

 

 
450,672

 
(127,077
)
 
583,637

Gross profit
257,665

 
87,189

 
14,813

 
(134
)
 
359,533

Operating expenses
 
 
 
 
 
 
 
 
 
Operation and maintenance
92,994

 
23,570

 
9,129

 
(134
)
 
125,559

Depreciation and amortization
52,542

 
10,281

 
1,132

 

 
63,955

Taxes, other than income
57,596

 
5,054

 
764

 

 
63,414

Total operating expenses
203,132

 
38,905

 
11,025

 
(134
)
 
252,928

Operating income
54,533

 
48,284

 
3,788

 

 
106,605

Miscellaneous income (expense)
678

 
(489
)
 
1,018

 
(1,581
)
 
(374
)
Interest charges
23,649

 
9,162

 
610

 
(1,581
)
 
31,840

Income before income taxes
31,562

 
38,633

 
4,196

 

 
74,391

Income tax expense
13,033

 
13,695

 
1,942

 

 
28,670

Net income
$
18,529

 
$
24,938

 
$
2,254

 
$

 
$
45,721

Capital expenditures
$
146,860

 
$
45,658

 
$
1,073

 
$

 
$
193,591


 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended June 30, 2015
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
2,389,037

 
$
70,887

 
$
1,025,310

 
$

 
$
3,485,234

Intersegment revenues
5,142

 
201,418

 
154,069

 
(360,629
)
 

 
2,394,179

 
272,305

 
1,179,379

 
(360,629
)
 
3,485,234

Purchased gas cost
1,397,113

 

 
1,122,655

 
(360,230
)
 
2,159,538

Gross profit
997,066

 
272,305

 
56,724

 
(399
)
 
1,325,696

Operating expenses
 
 
 
 
 
 
 
 
 
Operation and maintenance
288,962

 
74,029

 
21,897

 
(399
)
 
384,489

Depreciation and amortization
165,730

 
34,945

 
3,384

 

 
204,059

Taxes, other than income
162,759

 
16,296

 
2,551

 

 
181,606

Total operating expenses
617,451

 
125,270

 
27,832

 
(399
)
 
770,154

Operating income
379,615

 
147,035

 
28,892

 

 
555,542

Miscellaneous income (expense)
(1,221
)
 
(842
)
 
897

 
(1,468
)
 
(2,634
)
Interest charges
60,914

 
25,014

 
706

 
(1,468
)
 
85,166

Income before income taxes
317,480

 
121,179

 
29,083

 

 
467,742

Income tax expense
121,776

 
42,894

 
11,512

 

 
176,182

Net income
$
195,704

 
$
78,285

 
$
17,571

 
$

 
$
291,560

Capital expenditures
$
482,371

 
$
185,028

 
$
84

 
$

 
$
667,483


 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended June 30, 2014
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
Operating revenues from external parties
$
2,648,505

 
$
67,162

 
$
1,436,215

 
$

 
$
4,151,882

Intersegment revenues
4,027

 
164,983

 
223,916

 
(392,926
)
 

 
2,652,532

 
232,145

 
1,660,131

 
(392,926
)
 
4,151,882

Purchased gas cost
1,710,508

 

 
1,589,163

 
(392,556
)
 
2,907,115

Gross profit
942,024

 
232,145

 
70,968

 
(370
)
 
1,244,767

Operating expenses
 
 
 
 
 
 
 
 
 
Operation and maintenance
289,433

 
57,465

 
19,463

 
(370
)
 
365,991

Depreciation and amortization
152,113

 
30,223

 
3,395

 

 
185,731

Taxes, other than income
155,286

 
8,485

 
1,869

 

 
165,640

Total operating expenses
596,832

 
96,173

 
24,727

 
(370
)
 
717,362

Operating income
345,192

 
135,972

 
46,241

 

 
527,405

Miscellaneous income (expense)
304

 
(2,751
)
 
1,785

 
(3,360
)
 
(4,022
)
Interest charges
69,802

 
27,274

 
1,840

 
(3,360
)
 
95,556

Income before income taxes
275,694

 
105,947

 
46,186

 

 
427,827

Income tax expense
105,665

 
37,454

 
18,604

 

 
161,723

Net income
$
170,029

 
$
68,493

 
$
27,582

 
$

 
$
266,104

Capital expenditures
$
413,921

 
$
137,579

 
$
1,100

 
$

 
$
552,600

 
Balance sheet information at June 30, 2015 and September 30, 2014 by segment is presented in the following tables:

 
June 30, 2015
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
ASSETS
 
 
 
 
 
 
 
 
 
Property, plant and equipment, net
$
5,543,386

 
$
1,613,182

 
$
55,520

 
$

 
$
7,212,088

Investment in subsidiaries
1,028,457

 

 
(2,096
)
 
(1,026,361
)
 

Current assets
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
35,288

 

 
7,865

 

 
43,153

Assets from risk management activities
780

 

 
10,806

 

 
11,586

Other current assets
375,213

 
20,100

 
497,871

 
(331,274
)
 
561,910

Intercompany receivables
820,587

 

 

 
(820,587
)
 

Total current assets
1,231,868

 
20,100

 
516,542

 
(1,151,861
)
 
616,649

Goodwill
574,816

 
132,502

 
34,711

 

 
742,029

Noncurrent assets from risk management activities
1,109

 

 

 

 
1,109

Deferred charges and other assets
291,740

 
15,305

 
5,569

 

 
312,614

 
$
8,671,376

 
$
1,781,089

 
$
610,246

 
$
(2,178,222
)
 
$
8,884,489

CAPITALIZATION AND LIABILITIES
 
 
 
 
 
 
 
 
 
Shareholders’ equity
$
3,238,255

 
$
560,898

 
$
467,559

 
$
(1,028,457
)
 
$
3,238,255

Long-term debt
2,455,303

 

 

 

 
2,455,303

Total capitalization
5,693,558

 
560,898

 
467,559

 
(1,028,457
)
 
5,693,558

Current liabilities
 
 
 
 
 
 
 
 
 
Short-term debt
570,977

 

 

 
(319,000
)
 
251,977

Liabilities from risk management activities
4,916

 

 

 

 
4,916

Other current liabilities
551,102

 
17,850

 
100,910

 
(10,178
)
 
659,684

Intercompany payables

 
786,493

 
34,094

 
(820,587
)
 

Total current liabilities
1,126,995

 
804,343

 
135,004

 
(1,149,765
)
 
916,577

Deferred income taxes
1,014,432

 
415,687

 
(1,029
)
 

 
1,429,090

Noncurrent liabilities from risk management activities
47,224

 

 

 

 
47,224

Regulatory cost of removal obligation
432,153

 

 

 

 
432,153

Pension and postretirement liabilities
318,140

 

 

 

 
318,140

Deferred credits and other liabilities
38,874

 
161

 
8,712

 

 
47,747

 
$
8,671,376

 
$
1,781,089

 
$
610,246

 
$
(2,178,222
)
 
$
8,884,489




 
September 30, 2014
 
Regulated
Distribution
 
Regulated
Pipeline
 
Nonregulated
 
Eliminations
 
Consolidated
 
(In thousands)
ASSETS
 
 
 
 
 
 
 
 
 
Property, plant and equipment, net
$
5,202,761

 
$
1,464,572

 
$
58,573

 
$

 
$
6,725,906

Investment in subsidiaries
952,171

 

 
(2,096
)
 
(950,075
)
 

Current assets
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
33,303

 

 
8,955

 

 
42,258

Assets from risk management activities
23,102

 

 
22,725

 

 
45,827

Other current assets
490,408

 
14,009

 
526,161

 
(342,823
)
 
687,755

Intercompany receivables
790,442

 

 

 
(790,442
)
 

Total current assets
1,337,255

 
14,009

 
557,841

 
(1,133,265
)
 
775,840

Goodwill
574,816

 
132,502

 
34,711

 

 
742,029

Noncurrent assets from risk management activities
13,038

 

 

 

 
13,038

Deferred charges and other assets
309,965

 
21,826

 
6,100

 

 
337,891

 
$
8,390,006

 
$
1,632,909

 
$
655,129

 
$
(2,083,340
)
 
$
8,594,704

CAPITALIZATION AND LIABILITIES
 
 
 
 
 
 
 
 
 
Shareholders’ equity
$
3,086,232

 
$
482,612

 
$
469,559

 
$
(952,171
)
 
$
3,086,232

Long-term debt
2,455,986

 

 

 

 
2,455,986

Total capitalization
5,542,218

 
482,612

 
469,559

 
(952,171
)
 
5,542,218

Current liabilities
 
 
 
 
 
 
 
 
 
Short-term debt
522,695

 

 

 
(326,000
)
 
196,695

Liabilities from risk management activities
1,730

 

 

 

 
1,730

Other current liabilities
559,765

 
24,790

 
142,397

 
(14,727
)
 
712,225

Intercompany payables

 
763,635

 
26,807

 
(790,442
)
 

Total current liabilities
1,084,190

 
788,425

 
169,204

 
(1,131,169
)
 
910,650

Deferred income taxes
913,260

 
361,688

 
11,668

 

 
1,286,616

Noncurrent liabilities from risk management activities
20,126

 

 

 

 
20,126

Regulatory cost of removal obligation
445,387

 

 

 

 
445,387

Pension and postretirement liabilities
340,963

 

 

 

 
340,963

Deferred credits and other liabilities
43,862

 
184

 
4,698

 

 
48,744

 
$
8,390,006

 
$
1,632,909

 
$
655,129

 
$
(2,083,340
)
 
$
8,594,704