Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data (Unaudited) [Abstract]

QUARTERLY FINANCIAL DATA (UNAUDITED)

(12) QUARTERLY FINANCIAL DATA (UNAUDITED)

The condensed quarterly results of operations for the years ended December 31, 2011 and 2010 (in thousands of dollars, except per share data) are as follows:

	Quarter Ended
	March 31, 2011			June 30, 2011		September 30, 2011			December 31, 2011
	(Thousands of dollars, except per share data)
Operating revenues	$	119,640		$	135,976	$	145,576		$	138,434
Gain (loss) on disposition of assets, net		146			77		(638	)		113
(Loss) earnings before income taxes		(4,452	)		1,206		5,969			5,363
Net (loss) earnings		(2,671	)		723		3,582			3,218
Net (loss) earnings per share
Basic		(0.17	)		0.05		0.23			0.21
Diluted		(0.17	)		0.05		0.23			0.20

	Quarter Ended
	March 31, 2010		June 30, 2010		September 30, 2010			December 31, 2010
	(Thousands of dollars, except per share data)
Operating revenues, net	$	121,609	$	139,597	$	135,669		$	120,260
Gain on disposition of assets, net		—		117		98			18
Earnings (loss) before income taxes		6,718		11,757		(1,440	)(1)		(2,442	)
Net earnings (loss)		4,031		7,054		(2,443	)(1)		(1,525	)
Net earnings (loss) per share
Basic		0.26		0.46		(0.16	)(1)		(0.10	)
Diluted		0.26		0.46		(0.16	)(1)		(0.10	)

(1) Includes a $9.5 million charge ($5.7 million after tax) related to the refinancing of our 7.125% Senior Notes.