Quarterly Results for 2012 and 2011 (UNAUDITED) (Notes)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results for 2012 and 2011 (UNAUDITED) [Text Block]

21. QUARTERLY RESULTS FOR 2012 and 2011 (UNAUDITED)

(Thousands of dollars, except per share amounts)

	Quarter Ended										Total Year
	March 31		June 30		Sept. 30			Dec. 31
2012
Sales	$	355,780	$	371,926	$	408,988		$	434,306		$	1,571,000
Operating Income	84,009		98,590		113,174			115,678			411,451
Net Income	53,437		69,079		80,560			75,609			278,685
Basic EPS	0.44		0.56		0.66			0.61			2.27
Diluted EPS	0.42		0.54		0.62			0.59			2.17
2011
Sales	$	357,731	$	357,397	$	385,091		$	388,423		$	1,488,642
Operating Income	87,578		79,073		108,310			81,325		(a)	356,286
Net Income	58,412		56,454		104,909		(b)	56,230		(a)	276,005
Basic EPS	0.48		0.46		0.86			0.46			2.27
Diluted EPS	0.47		0.45		0.84			0.45			2.20

(a) Fourth quarter 2011 included a pre-tax expense of $6.5 million ($4.1 million after tax) due to an increase in a disposition reserve.

(b) Third quarter 2011 included a benefit of $16.0 million from the reversal of a reserve related to the taxability of the AFMC.