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Business Segment Information (Tables)
6 Months Ended
Jun. 30, 2018
Segment Reporting [Abstract]  
Summarized Financial Information of Segments
The following table summarizes financial information for the Company’s three business segments for the periods presented:
 
Exploration and
Production
 
Midstream Services
 
Well Services
 
Eliminations
 
Consolidated
 
(In thousands)
Three months ended June 30, 2018:
 
Revenues from non-affiliates
$
450,124

 
$
32,717

 
$
18,496

 
$

 
$
501,337

Inter-segment revenues

 
39,710

 
41,418

 
(81,128
)
 

Total revenues
450,124

 
72,427

 
59,914

 
(81,128
)
 
501,337

Operating income (loss)
(280,090
)
 
37,894

 
8,028

 
(8,506
)
 
(242,674
)
Other income (expense)
(174,572
)
 
(79
)
 
23

 

 
(174,628
)
Income (loss) before income taxes including non-controlling interests
$
(454,662
)
 
$
37,815

 
$
8,051

 
$
(8,506
)
 
$
(417,302
)
 
 
Three months ended June 30, 2017:
 
Revenues from non-affiliates
$
226,724

 
$
15,566

 
$
11,801

 
$

 
$
254,091

Inter-segment revenues

 
24,746

 
21,650

 
(46,396
)
 

Total revenues
226,724

 
40,312

 
33,451

 
(46,396
)
 
254,091

Operating income (loss)
(17,425
)
 
23,103

 
1,950

 
(2,249
)
 
5,379

Other income
13,525

 
3

 

 

 
13,528

Income (loss) before income taxes
$
(3,900
)
 
$
23,106

 
$
1,950

 
$
(2,249
)
 
$
18,907

 
 
Six months ended June 30, 2018:
 
Revenues from non-affiliates
$
831,832

 
$
60,639

 
$
30,082

 
$

 
$
922,553

Inter-segment revenues

 
76,350

 
74,721

 
(151,071
)
 

Total revenues
831,832

 
136,989

 
104,803

 
(151,071
)
 
922,553

Operating income (loss)
(200,130
)
 
70,132

 
16,178

 
(15,869
)
 
(129,689
)
Other expense
(282,717
)
 
(336
)
 
(20
)
 

 
(283,073
)
Income (loss) before income taxes including non-controlling interests
$
(482,847
)
 
$
69,796

 
$
16,158

 
$
(15,869
)
 
$
(412,762
)
 
 
Six months ended June 30, 2017:
 
Revenues from non-affiliates
$
491,607

 
$
30,172

 
$
17,428

 
$

 
$
539,207

Inter-segment revenues

 
47,781

 
37,003

 
(84,784
)
 

Total revenues
491,607

 
77,953

 
54,431

 
(84,784
)
 
539,207

Operating income (loss)
(16,456
)
 
43,865

 
(1,641
)
 
(297
)
 
25,471

Other income
33,292

 
2

 
4

 

 
33,298

Income (loss) before income taxes
$
16,836

 
$
43,867

 
$
(1,637
)
 
$
(297
)
 
$
58,769

 
 
At June 30, 2018:
 
Property, plant and equipment, net
$
6,129,083

 
$
786,246

 
$
44,319

 
$
(202,407
)
 
$
6,757,241

Total assets(1)
6,767,902

 
816,422

 
48,419

 
(167,408
)
 
7,465,335

At December 31, 2017:
 
 
 
 
 
 
 
 
 
Property, plant and equipment, net
$
5,663,323

 
$
649,923

 
$
46,779

 
$
(186,539
)
 
$
6,173,486

Total assets(1)
6,050,255

 
663,614

 
52,800

 
(151,539
)
 
6,615,130

___________________
(1)
Intercompany receivables (payables) for all segments were reclassified to capital contributions from (distributions to) parent and not included in total assets.