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SUMMARIZED QUARTERLY FINANCIAL INFORMATION - UNAUDITED
 12 Months Ended
Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]  
SUMMARIZED QUARTERLY FINANCIAL INFORMATION - UNAUDITED
SUMMARIZED QUARTERLY FINANCIAL INFORMATION – UNAUDITED:
The results of operations by quarter are as follows:
 
2016
 
Quarter Ended
 
March 31
 
June 30
 
September 30
 
December 31
Operating revenue
$
80,677

 
$
89,319

 
$
94,427

 
$
113,107

Loss from operations
(172,150
)
 
(174,656
)
 
(72,128
)
 
(90,234
)
Net loss
(188,784
)
 
(195,761
)
 
(89,635
)
 
(116,406
)
Basic loss per share
$
(33.89
)
 
$
(35.05
)
 
$
(16.01
)
 
$
(20.76
)
Diluted loss per share
$
(33.89
)
 
$
(35.05
)
 
$
(16.01
)
 
$
(20.76
)
 
 
 
 
 
 
 
 
Write-down of oil and gas properties
$
129,204

 
$
118,649

 
$
36,484

 
$
73,094

Restructuring fees
$
953

 
$
9,436

 
$
5,784

 
$
13,424

Other operational expenses (1)
$
12,527

 
$
27,680

 
$
9,059

 
$
6,187

Reorganization items
—

 
—

 
—

 
$
10,947

(1) See Note 18 – Other Operational Expenses for additional details.
 
2015
 
Quarter Ended
 
March 31
 
June 30
 
September 30
 
December 31
Operating revenue
$
153,498

 
$
149,525

 
$
132,196

 
$
110,499

Loss from operations
(497,194
)
 
(228,161
)
 
(297,209
)
 
(342,759
)
Net loss
(327,388
)
 
(152,906
)
 
(291,965
)
 
(318,656
)
Basic loss per share
$
(59.33
)
 
$
(27.68
)
 
$
(52.82
)
 
$
(57.63
)
Diluted loss per share
$
(59.33
)
 
$
(27.68
)
 
$
(52.82
)
 
$
(57.63
)
 
 
 
 
 
 
 
 
Write-down of oil and gas properties
$
491,412

 
$
224,294

 
$
295,679

 
$
351,062