Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2013

Discontinued Operations And Disposal Groups [Abstract]

Results of Operations Associated with Discontinued Operations

The results of operations associated with these discontinued operations for the three-month periods ended March 31, 2013 and 2012 were as follows:

(Thousands of dollars)	2013			2012
Revenues	$	166,522			37,583
Income before income taxes, including gain on disposal of $74,928 during 2013		89,521			22,973
Income tax expense (benefit)		(63,108	)		14,340