Segments and Geographic Area Analysis

6 Months Ended

Jun. 30, 2011

Segments and Geographic Area Analysis [Abstract]

Segments and Geographic Area Analysis

10. Segments and Geographic Area Analysis

     Although we provide contract drilling services with different types of offshore drilling rigs and also provide such services in many geographic locations, we have aggregated these operations into one reportable segment based on the similarity of economic characteristics among all divisions and locations, including the nature of services provided and the type of customers of such services, in accordance with FASB Accounting Standards Codification Topic 280, Segment Reporting.

     Revenues from contract drilling services by equipment-type are listed below:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
	(In thousands)
High-Specification Floaters	$	452,289	$	340,387	$	813,355	$	724,175
Intermediate Semisubmersibles		356,840		389,094		736,339		769,795
Jack-ups		60,512		82,223		108,730		162,172
Other		5		35		95		35
Total contract drilling revenues		869,646		811,739		1,658,519		1,656,177
Revenues related to reimbursable expenses		19,850		10,864		37,366		26,107
Total revenues	$	889,496	$	822,603	$	1,695,885	$	1,682,284

Geographic Areas

     Our drilling rigs are highly mobile and may be moved to other markets throughout the world in response to market conditions or customer needs. At June 30, 2011, our drilling rigs were located offshore twelve countries in addition to the United States. Revenues by geographic area are presented by attributing revenues to the individual country or areas where the services were performed.

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2011		2010		2011		2010
	(In thousands)
United States	$	101,221	$	189,019	$	151,495	$	427,566
International:
South America		441,221		312,207		885,324		595,323
Australia/Asia/Middle East		118,454		142,463		223,122		301,392
Europe/Africa/Mediterranean		209,102		140,078		399,150		276,683
Mexico		19,498		38,836		36,794		81,320
Total revenues	$	889,496	$	822,603	$	1,695,885	$	1,682,284