Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

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QUARTERLY FINANCIAL DATA (UNAUDITED)

The condensed quarterly results of operations for the years ended December 31, 2016 and 2015 (in thousands of dollars, except per share data) were as follows:


	Quarter Ended
	March 31,			June 30,		September 30,			December 31,
	2016			2016		2016			2016
	(Thousands of dollars, except per share data)
Operating revenues, net	$	164,016		$	167,136	$	158,093		$	144,853
(Loss) gain on disposition of assets, net		(359	)		4,298		(85	)		(504	)
(Loss) earnings before income taxes		(7,488	)		117		(7,766	)		(12,012	)
Net (loss) earnings		(8,932	)		4,277		(4,967	)		(17,058	)
Net (loss) earnings per share
Basic		(0.57	)		0.27		(0.32	)		(1.08	)
Diluted		(0.57	)		0.27		(0.32	)		(1.08	)

	Quarter Ended
	March 31,			June 30,		September 30,			December 31,
	2015			2015		2015			2015
	(Thousands of dollars, except per share data)
Operating revenues, net	$	204,197		$	198,547	$	214,733		$	186,751
Gain (loss) on disposition of assets, net		7			66		165			(577	)
Earnings before income taxes		16,984			11,044		14,290			938
Net earnings		10,363			6,454		7,669			2,438
Net earnings per share
Basic		0.67			0.41		0.49			0.16
Diluted		0.66			0.41		0.49			0.16