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Segment Information
 3 Months Ended
Mar. 31, 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
 
March 31,
(in thousands)
2012
2011
Operating revenues
 
 
Oil and gas operations
$
223,957

$
216,792

Natural gas distribution
194,487

269,572

Total
$
418,444

$
486,364

Operating income (loss)
 
 
Oil and gas operations
$
26,005

$
85,059

Natural gas distribution
78,560

75,059

Eliminations and corporate expenses
(395
)
(237
)
Total
$
104,170

$
159,881

Other income (expense)
 
 
Oil and gas operations
$
(10,558
)
$
(5,447
)
Natural gas distribution
(3,004
)
(2,913
)
Eliminations and other
56

23

Total
$
(13,506
)
$
(8,337
)
Income before income taxes
$
90,664

$
151,544


(in thousands)
March 31, 2012
December 31, 2011

Identifiable assets
 
 
Oil and gas operations
$
4,249,943

$
4,046,242

Natural gas distribution
1,142,781

1,163,959

Eliminations and other
40,048

27,215

Total
$
5,432,772

$
5,237,416