Discontinued Operations (Tables)

6 Months Ended

Jun. 30, 2012

Results of Operations Associated with Discontinued Operations

The results of operations associated with these discontinued operations for the three-month and six-month periods ended June 30, 2011 were as follows:

(Thousands of dollars)	Three-Months Ended June 30, 2011		Six-Months Ended June 30, 2011
Revenues	$	1,305,566		2,385,560
Income before income taxes		47,456		96,387
Income tax expense		15,859		34,329