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Segment Information
 9 Months Ended
Sep. 30, 2012
Segment Reporting [Abstract]  
Segment Information
SEGMENT INFORMATION
 
The Company principally is 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).

 
Three months ended
 
Nine months ended
 
September 30,
 
September 30,
(in thousands)
2012
2011
 
2012
2011
Operating revenues
 
 
 
 
 
Oil and gas operations
$
233,515

$
318,952

 
$
856,940

$
779,834

Natural gas distribution
61,809

59,616

 
327,183

415,497

Total
$
295,324

$
378,568

 
$
1,184,123

$
1,195,331

Operating income (loss)
 
 
 
 
 
Oil and gas operations
$
32,407

$
161,331

 
$
274,818

$
351,808

Natural gas distribution
(12,743
)
(10,681
)
 
70,265

65,541

Eliminations and corporate expenses
(206
)
(238
)
 
(857
)
(721
)
Total
$
19,458

$
150,412

 
$
344,226

$
416,628

Other income (expense)
 
 
 
 
 
Oil and gas operations
$
(12,633
)
$
(9,363
)
 
$
(35,195
)
$
(20,632
)
Natural gas distribution
(3,274
)
(4,162
)
 
(10,062
)
(10,115
)
Eliminations and other
148

94

 
234

182

Total
$
(15,759
)
$
(13,431
)
 
$
(45,023
)
$
(30,565
)
Income before income taxes
$
3,699

$
136,981

 
$
299,203

$
386,063


(in thousands)
September 30, 2012
December 31, 2011

Identifiable assets
 
 
Oil and gas operations
$
4,734,269

$
4,046,242

Natural gas distribution
1,120,161

1,163,959

Eliminations and other
65,399

27,215

Total
$
5,919,829

$
5,237,416