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Reportable Segments (Tables)
9 Months Ended
Sep. 30, 2011
Reportable Segments [Abstract] 
Financial Information By Segments
The following tables present the financial information by segment for the following periods:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2011
 
2010
 
2011
 
2010
Revenues:
 
 
 
 
 
 
 
Intrastate natural gas transportation and storage:
 
 
 
 
 
 
 
Revenues from external customers
$
617,244

 
$
529,507

 
$
1,849,575

 
$
1,662,037

Intersegment revenues
33,590

 
369,487

 
245,512

 
952,336

 
650,834

 
898,994

 
2,095,087

 
2,614,373

Interstate natural gas transportation — revenues from external customers
120,065

 
74,659

 
330,016

 
213,007

Midstream:
 
 
 
 
 
 
 
Revenues from external customers
565,246

 
458,381

 
1,492,025

 
1,484,211

Intersegment revenues
78,742

 
416,703

 
421,154

 
945,438

 
643,988

 
875,084

 
1,913,179

 
2,429,649

NGL transportation and services:
 
 
 
 
 
 
 
Revenues from external customers
131,284

 
—

 
224,970

 
—

Intersegment revenues
15,312

 
—

 
20,446

 
—

 
146,596

 
—

 
245,416

 
—

Retail propane and other retail propane related — revenues from external customers
236,781

 
205,833

 
1,037,969

 
987,114

All other:
 
 
 
 
 
 
 
Revenues from external customers
44,696

 
22,264

 
96,433

 
83,962

Intersegment revenues
5,059

 
73,021

 
45,958

 
162,819

 
49,755

 
95,285

 
142,391

 
246,781

Eliminations
(132,703
)
 
(859,211
)
 
(733,070
)
 
(2,060,593
)
Total revenues
$
1,715,316

 
$
1,290,644

 
$
5,030,988

 
$
4,430,331


 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2011
 
2010
 
2011
 
2010
Operating income:
 
 
 
 
 
 
 
Intrastate natural gas transportation and storage
$
128,542

 
$
133,750

 
$
408,287

 
$
395,772

Interstate natural gas transportation
67,186

 
34,576

 
169,114

 
98,338

Midstream
74,131

 
52,793

 
191,065

 
154,990

NGL transportation and services
30,935

 
—

 
59,077

 
—

Retail propane and other retail propane related
(27,253
)
 
(13,053
)
 
83,795

 
107,285

All other
(866
)
 
9,009

 
2,822

 
23,695

Eliminations
(875
)
 
(11,610
)
 
(9,358
)
 
(27,658
)
Selling, general and administrative expenses not allocated to segments
543

 
2,682

 
1,095

 
(753
)
Total operating income
$
272,343

 
$
208,147

 
$
905,897

 
$
751,669

Other items not allocated by segment:
 
 
 
 
 
 
 
Interest expense, net of interest capitalized
$
(124,000
)
 
$
(101,241
)
 
$
(347,706
)
 
$
(309,217
)
Equity in earnings of affiliates
6,713

 
595

 
13,386

 
10,848

Losses on non-hedged interest rate derivatives
(68,595
)
 
(11,963
)
 
(64,705
)
 
(11,963
)
Allowance for equity funds used during construction
636

 
12,432

 
705

 
18,039

Impairment of investments in affiliates
(5,355
)
 
—

 
(5,355
)
 
(52,620
)
Other income, net
(1,653
)
 
1,410

 
(1,935
)
 
(3,929
)
Income tax expense
(4,039
)
 
(1,993
)
 
(20,419
)
 
(12,486
)
 
(196,293
)
 
(100,760
)
 
(426,029
)
 
(361,328
)
Net income
$
76,050

 
$
107,387

 
$
479,868

 
$
390,341

 
 
September 30, 2011
 
December 31, 2010
Total assets:
 
 
 
Intrastate natural gas transportation and storage
$
4,766,877

 
$
4,894,352

Interstate natural gas transportation
3,652,595

 
3,390,588

Midstream
2,500,630

 
1,842,370

NGL transportation and services
2,183,885

 
—

Retail propane and other retail propane related
1,724,395

 
1,791,254

All other
249,666

 
231,428

Total
$
15,078,048

 
$
12,149,992