XML 131 R27.htm IDEA: XBRL DOCUMENT v2.4.0.6
Industry Segment Information
 12 Months Ended
Dec. 31, 2012
Segment Reporting [Abstract]  
Segment Information
INDUSTRY SEGMENT INFORMATION
 

The Company is principally engaged in two business segments: the development, acquisition, exploration and production of oil and gas in the continental United States (oil and gas operations) and the purchase, distribution and sale of natural gas in central and north Alabama (natural gas distribution). The accounting policies of the segments are the same as those described in Note 1, Summary of Significant Accounting Policies.
Years ended December 31,(in thousands)
2012
2011
2010
Operating revenues
 
 
 
Oil and gas operations
$
1,165,580

$
948,526

$
958,762

Natural gas distribution
451,589

534,953

619,772

Total
$
1,617,169

$
1,483,479

$
1,578,534

Operating income (loss)
 
 
 
Oil and gas operations
$
367,243

$
363,131

$
406,729

Natural gas distribution
93,216

86,216

88,383

Eliminations and corporate expenses
(1,067
)
(1,078
)
(1,735
)
Total
$
459,392

$
448,269

$
493,377

Depreciation, depletion and amortization expense
 
 
 
Oil and gas operations
$
377,328

$
244,081

$
203,823

Natural gas distribution
42,270

39,916

44,042

Total
$
419,598

$
283,997

$
247,865

Interest expense
 
 
 
Oil and gas operations
$
49,972

$
30,907

$
25,753

Natural gas distribution
16,284

14,740

13,894

Eliminations and other
(700
)
(825
)
(425
)
Total
$
65,556

$
44,822

$
39,222

Income tax expense (benefit)
 
 
 
Oil and gas operations
$
114,375

$
120,079

$
138,775

Natural gas distribution
30,244

26,670

29,875

Other
(800
)
(1,048
)
(1,660
)
Total
$
143,819

$
145,701

$
166,990

Capital expenditures
 
 
 
Oil and gas operations
$
1,291,211

$
1,115,452

$
717,782

Natural gas distribution
71,869

73,984

93,566

Total
$
1,363,080

$
1,189,436

$
811,348

Identifiable assets
 
 
 
Oil and gas operations
$
4,975,170

$
4,046,242

$
3,160,601

Natural gas distribution
1,177,134

1,163,959

1,166,899

Eliminations and other
23,586

27,215

36,060

Total
$
6,175,890

$
5,237,416

$
4,363,560

Property, plant and equipment, net
 
 
 
Oil and gas operations
$
4,697,683

$
3,806,787

$
2,936,284

Natural gas distribution
842,685

813,471

782,665

Other
1,268

518

278

Total
$
5,541,636

$
4,620,776

$
3,719,227