Product Warranties

6 Months Ended

Jun. 30, 2011

NOTE 5—PRODUCT WARRANTIES

Changes in the Company’s accrual for product warranty claims during the first six months of 2011 and 2010, including customer satisfaction settlements, were as follows:


(Thousands of dollars)	2011			2010
Balance at January 1	$	23,103		$	22,214
Charges to expense		14,445			10,869
Settlements		(12,746	)		(10,478	)

Balance at June 30	$	24,802		$	22,605

For further details on the Company’s accrual for product warranty claims, see Note 1 to the Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2010.