Business Acquisitions (Tables)

12 Months Ended

Dec. 31, 2012

Business Acquisitions [Abstract]

Acquisition consideration

The allocation of the purchase price of Scorpion was based upon fair value studies.

Acquisition consideration was as follows:

(In US$ millions)
Cash	57
Fair Value of previously held 40% equity interest	226
Fair Value of Non Controlling Interests	282
Total acquisition consideration	565

Purchase price allocation of acquired companies

The purchase price of the acquired companies has been allocated as follows:

(In US$ millions)	Scorpion		Gray		RIS		Total
Assets:
Intangible assets		-		36		2		38
Goodwill		-		80		5		85
Fixed assets		1,234		44		-		1,278
Receivables and other current assets		210		33		3		246
Total assets		1,444		193		10		1,647
Liabilities:
Deferred tax		-		25		-		26
Payables and other current liabilities		823		8		1		831
Total liabilities		823		33		1		857
Purchase Price		565		161		9		735
Gain on bargain purchase		56		-		-		56