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Business Segment Information (Tables)
 3 Months Ended
Mar. 31, 2016
Segment Reporting [Abstract]  
Summarized Financial Information of Segments
The following table summarizes financial information for the Company’s business segments for the periods presented: 
 
Exploration and
Production
 
Well Services
 
Midstream Services
 
Eliminations
 
Consolidated
 
(In thousands)
Three months ended March 31, 2016:
 
Revenues from non-affiliates
$
117,315

 
$
5,985

 
$
6,983

 
$
—

 
$
130,283

Inter-segment revenues
—

 
24,903

 
22,835

 
(47,738
)
 
—

Total revenues
117,315

 
30,888

 
29,818

 
(47,738
)
 
130,283

Operating income (loss)
(88,877
)
 
4,006

 
15,144

 
(5,488
)
 
(75,215
)
Other income (expense)
(16,887
)
 
5

 
13

 
—

 
(16,869
)
Income (loss) before income taxes
$
(105,764
)
 
$
4,011

 
$
15,157

 
$
(5,488
)
 
$
(92,084
)
 
 
Three months ended March 31, 2015:
 
 
 
 
 
 
 
 
 
Revenues from non-affiliates
$
173,859

 
$
2,708

 
$
3,820

 
$
—

 
$
180,387

Inter-segment revenues
—

 
48,197

 
13,822

 
(62,019
)
 
—

Total revenues
173,859

 
50,905

 
17,642

 
(62,019
)
 
180,387

Operating income (loss)
(42,247
)
 
9,610

 
9,308

 
(10,306
)
 
(33,635
)
Other income (expense)
8,239

 
(2
)
 
(19
)
 
—

 
8,218

Income (loss) before income taxes
$
(34,008
)
 
$
9,608

 
$
9,289

 
$
(10,306
)
 
$
(25,417
)
 
 
 
 
 
 
 
 
 
 
As of March 31, 2016:
 
Property, plant and equipment, net
$
4,994,366

 
$
57,821

 
$
295,913

 
$
(170,931
)
 
$
5,177,169

Total assets(1)
5,367,881

 
62,076

 
301,242

 
(170,931
)
 
5,560,268

As of December 31, 2015:
 
 
 
 
 
 
 
 
 
Property, plant and equipment, net
$
5,057,311

 
$
61,402

 
$
264,956

 
$
(165,427
)
 
$
5,218,242

Total assets(1)
5,478,439

 
66,952

 
269,411

 
(165,427
)
 
5,649,375

___________________
(1)
As of March 31, 2016, total assets included assets held for sale of $25.8 million in the exploration and production segment and $34,000 in the midstream services segment. As of December 31, 2015, total assets included assets held for sale of $26.7 million in the exploration and production segment (see Note 7 – Assets Held for Sale). For the periods presented, the intercompany receivables (payables) for all segments were reclassified to capital contributions from (distributions to) parent and not included in total assets.