CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues	$ 43,505	$ 53,819	$ 134,062	$ 161,175
Cost of sales (exclusive of depreciation and amortization shown below)	41,183	50,514	128,657	152,303
Depreciation and amortization	7,657	8,058	22,371	24,793
Gross loss	(5,335)	(4,753)	(16,966)	(15,921)
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	10,145	10,121	29,961	30,412
Depreciation and amortization	397	625	1,193	1,859
Other operating expenses (income)	12,926	(718)	12,944	(777)
Operating loss	(28,803)	(14,781)	(61,064)	(47,765)
Other expense:
Interest expense, net	(1,700)	(2,292)	(6,064)	(6,393)
Other income, net	37	166	463	173
Nonoperating income (expense), total	(1,663)	(2,126)	(5,601)	(6,220)
Loss before income taxes	(30,466)	(16,907)	(66,665)	(53,985)
Income tax benefit	(1,038)	(171)	(1,038)	(164)
Net loss	$ (29,428)	$ (16,736)	$ (65,627)	$ (53,821)
Loss per share:
Basic	$ (1.03)	$ (0.62)	$ (2.32)	$ (2.00)
Diluted	(1.03)	(0.62)	(2.32)	(2.00)
Other information:
Dividends declared per common share	$ 0	$ 0	$ 0	$ 0
Russia Proppant
Loss on sale of Russia proppant business	$ 0	$ 0	$ 0	$ 350