Comprehensive Income

9 Months Ended

Sep. 30, 2011

Comprehensive Income and Capital Stock [Abstract]

COMPREHENSIVE INCOME

NOTE 4—COMPREHENSIVE INCOME

Comprehensive income is summarized as follows:

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
(Thousands of dollars)	2011			2010		2011			2010
Net income	$	179,877		$	175,258	$	427,308		$	389,567
Foreign currency translation adjustments		(74,886	)		28,554		(47,998	)		13,868
Amortization of net prior service costs and net
actuarial losses, net of taxes (1)		2,408			2,385		9,093			9,877
Adjustments of marketable equity securities,
net of taxes (2)		(225	)		880		(633	)		1,545
Comprehensive income	$	107,174		$	207,077	$	387,770		$	414,857

(1)	The tax effect of amortization of net prior service costs and net actuarial losses was $(3,055) and $(9,016) for the three and nine months ended September 30, 2011 and $(3,288) and $(6,912) for the three and nine months ended September 30, 2010.
(2)	The tax effect of adjustments of marketable equity securities was $144 and $404 for the three and nine months ended September 30, 2011 and $(563) and $(988) for the three and nine months ended September 30, 2010.