Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Selected quarterly financial data and earnings per share

The following table presents selected quarterly financial data for the periods indicated (in thousands, except per share data):

	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
Year Ended December 31, 2018
Revenues	$	387,256	$	452,417	$	467,891	$	442,649
Operating (losses) earnings (1)	1,077		4,298		2,239		(6,206)
Net (losses) earnings	1,138		3,620		2,035		(3,848)
Earnings (losses) per share:
Basic net (losses) earnings per share	$	0.27	$	0.86	$	0.48	$	(0.91)
Diluted net (losses) earnings per share	$	0.27	$	0.86	$	0.48	$	(0.91)
Year Ended December 31, 2017
Revenues	$	303,087	$	315,202	$	295,311	$	408,460
Operating (losses) earnings	(1,584)		619		(1,290)		3,757
Net (losses) earnings	(860)		(282)		(3,033)		3,693
Earnings (losses) per share:
Basic and diluted net (losses) earnings per share	$	(0.20)	$	(0.07)	$	(0.72)	$	0.88

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(1) The fourth quarter of 2018 includes inventory valuation losses of approximately $7.9 million in our crude oil marketing segment.