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Segment Information
 6 Months Ended
Jun. 30, 2013
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
 
Six months ended
 
June 30,
 
June 30,
(in thousands)
2013
2012
 
2013
2012
Operating revenues from continuing operations
 
 
 
 
 
Oil and gas operations
$
385,543

$
399,468

 
$
640,537

$
623,425

Natural gas distribution
104,514

70,887

 
342,199

265,374

Total
$
490,057

$
470,355

 
$
982,736

$
888,799

Operating income (loss) from continuing operations
 
 
 
 
 
Oil and gas operations
$
144,031

$
216,406

 
$
170,358

$
242,411

Natural gas distribution
2,219

4,448

 
81,512

83,008

Eliminations and corporate expenses
54

(256
)
 
(230
)
(651
)
Total
$
146,304

$
220,598

 
$
251,640

$
324,768

Other income (expense)
 
 
 
 
 
Oil and gas operations
$
(13,411
)
$
(12,004
)
 
$
(25,404
)
$
(22,562
)
Natural gas distribution
(3,366
)
(3,784
)
 
(6,496
)
(6,788
)
Eliminations and other
91

30

 
149

86

Total
$
(16,686
)
$
(15,758
)
 
$
(31,751
)
$
(29,264
)
Income before income taxes
$
129,618

$
204,840

 
$
219,889

$
295,504


(in thousands)
June 30, 2013
December 31, 2012

Identifiable assets
 
 
Oil and gas operations
$
5,364,154

$
4,975,170

Natural gas distribution
1,103,440

1,177,134

Eliminations and other
37,569

23,586

Total
$
6,505,163

$
6,175,890