CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Revenues	$ 1,028,745	[1]	$ 879,894	[1]	$ 2,645,671	[1]	$ 2,628,935	[1]
Costs and Expenses:
Cost of operations	889,823		802,951		2,246,961		2,253,981
Selling, general and administrative expenses	51,834		48,046		145,927		163,827
Gain on asset disposals	(85)		(7,811)		(282)		(8,107)
Total costs and expenses	941,572		843,186		2,392,606		2,409,701
Equity in Income (Loss) of Unconsolidated Affiliates	(4,692)		(1,492)		(11,026)		59
Operating Income	82,481		35,216		242,039		219,293
Other Income (Expense):
Interest income	996		319		4,215		1,060
Interest expense			(152)				(415)
Gain (loss) on foreign currency - net	488		504		11,185		(2,356)
Other income (expense) - net	242		(298)		(288)		(1,586)
Total other income (expense)	1,726		373		15,112		(3,297)
Income from continuing operations before provision for income taxes and noncontrolling interests	84,207		35,589		257,151		215,996
Provision for Income Taxes	29,916		20,535		87,004		60,351
Income from continuing operations before noncontrolling interests	54,291		15,054		170,147		155,645
Gain on disposal of discontinued operations					257
Income from discontinued operations, net of tax			1,187		3,240		6,459
Total income from discontinued operations, net of tax			1,187		3,497		6,459
Net Income	54,291		16,241		173,644		162,104
Less: Net Income Attributable to Noncontrolling Interests	3,679		5,290		7,535		13,405
Net income attributable to McDermott International, Inc.	$ 50,612		$ 10,951		$ 166,109		$ 148,699
Basic:
Income from continuing operations, less noncontrolling interests	$ 0.21		$ 0.04		$ 0.69		$ 0.61
Income from discontinued operations, net of tax			$ 0.01		$ 0.01		$ 0.03
Net income attributable to McDermott International, Inc.	$ 0.21		$ 0.05		$ 0.70		$ 0.63
Diluted:
Income from continuing operations, less noncontrolling interests	$ 0.21		$ 0.04		$ 0.68		$ 0.60
Income from discontinued operations, net of tax			$ 0.01		$ 0.01		$ 0.03
Net income attributable to McDermott International, Inc.	$ 0.21		$ 0.05		$ 0.69		$ 0.63
Shares used in the computation of earnings per share:
Basic	235,817,203		234,940,184		235,568,889		234,451,430
Diluted	237,867,000		236,947,663		237,553,463		237,079,305

[1] Intersegment transactions included in revenues were not significant for the periods presented.