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Business Segment and Geographic Information
 6 Months Ended
Jun. 30, 2012
Segment Reporting [Abstract]  
Business Segment and Geographic Information
Business Segment and Geographic Information
We operate under two divisions, which form the basis for the two operating segments we report: the Completion and Production segment and the Drilling and Evaluation segment.
The following table presents information on our business segments. “Corporate and other” includes expenses related to support functions and corporate executives. Also included are certain gains and losses not attributable to a particular business segment, such as the $300 million loss contingency related to the Macondo well incident recorded in “Corporate and other” during the first quarter of 2012.
Intersegment revenue was immaterial. Our equity in earnings and losses of unconsolidated affiliates that are accounted for by the equity method of accounting are included in revenue and operating income of the applicable segment.

 
 
Three Months Ended
June 30
 
Six Months Ended
June 30
Millions of dollars
 
2012
 
2011
 
2012
 
2011
Revenue:
 
 
 
 
 
 
 
 
Completion and Production
 
$
4,460

 
$
3,618

 
$
8,750

 
$
6,790

Drilling and Evaluation
 
2,774

 
2,317

 
5,352

 
4,427

Total revenue
 
$
7,234

 
$
5,935

 
$
14,102

 
$
11,217

Operating income:
 
 
 
 
 
 
 
 
Completion and Production
 
$
914

 
$
918

 
$
1,950

 
$
1,578

Drilling and Evaluation
 
393

 
324

 
761

 
554

Total operations
 
1,307

 
1,242

 
2,711

 
2,132

Corporate and other
 
(106
)
 
(81
)
 
(487
)
 
(157
)
Total operating income
 
$
1,201

 
$
1,161

 
$
2,224

 
$
1,975

Interest expense, net of interest income
 
(80
)
 
(63
)
 
(154
)
 
(132
)
Other, net
 
(17
)
 
(5
)
 
(24
)
 
(9
)
Income from continuing operations before income taxes
 
$
1,104

 
$
1,093

 
$
2,046

 
$
1,834



Receivables
As of June 30, 2012, 43% of our gross trade receivables were from customers in the United States. As of December 31, 2011, 45% of our gross trade receivables were from customers in the United States.