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Business Segment Information (Tables)
12 Months Ended
Dec. 31, 2013
Segment Reporting [Abstract]  
Summarized Financial Information of Segments
Management evaluates the performance of the Company’s business segments based on operating income, which is defined as segment operating revenues less operating expenses, including depreciation, depletion and amortization. Summarized financial information for the Company’s three business segments is shown in the following table:
 
 
Exploration and
Production
 
Well Services
 
Midstream Services
 
Consolidated
 
(In thousands)
Year Ended December 31, 2013
 
Revenues
$
1,084,412

 
$
180,686

 
$
29,230

 
$
1,294,328

Inter-segment revenues

 
(128,841
)
 
(23,488
)
 
(152,329
)
Total revenues
1,084,412

 
51,845


5,742

 
1,141,999

Operating income
486,697

 
14,305

 
3,396

 
504,398

Other income (expense)
(141,397
)
 
16

 

 
(141,381
)
Income before income taxes
345,300

 
14,321

 
3,396

 
363,017

Total assets(1)
4,532,264

 
70,708

 
108,952

 
4,711,924

Capital expenditures(2)
2,472,126

 
15,217

 
18,955

 
2,506,298

Depreciation, depletion and amortization
304,389

 
2,091

 
575

 
307,055

Year Ended December 31, 2012
 
Revenues
$
670,491

 
$
82,481

 
$

 
$
752,972

Inter-segment revenues

 
(66,304
)
 

 
(66,304
)
Total revenues
670,491

 
16,177

 

 
686,668

Operating income
276,740

 
253

 

 
276,993

Other income (expense)
(31,120
)
 
1

 

 
(31,119
)
Income before income taxes
245,620

 
254

 

 
245,874

Total assets
2,475,820

 
52,974

 

 
2,528,794

Capital expenditures(2)
1,132,894

 
15,679

 

 
1,148,573

Depreciation, depletion and amortization
206,127

 
607

 

 
206,734

 
(1)
Total assets for the exploration and production segment includes $137.1 million of assets held for sale as of December 31, 2013.
(2)
Capital expenditures reflected in the table above differ from the amounts shown in the Consolidated Statement of Cash Flows because amounts reflected in the table include changes in accrued liabilities from the previous reporting period for capital expenditures, while the amounts presented in the Consolidated Statement of Cash Flows are presented on a cash basis.