REVENUES (Tables)

9 Months Ended

Sep. 30, 2018

REVENUES [Abstract]

Revenues by Major Source

The following table sets forth the Company’s revenues by major source for the three months and nine months ended September 30, 2018 and 2017 (in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
Marine transportation segment:
Inland transportation	$	288,573	$	220,177	$	827,848	$	681,879
Coastal transportation		93,467		98,633		272,758		311,848
	$	382,040	$	318,810	$	1,100,606	$	993,727
Distribution and services segment:
Oil and gas	$	201,475	$	159,492	$	780,825	$	350,295
Commercial and industrial		121,330		62,972		367,773		162,285
	$	322,805	$	222,464	$	1,148,598	$	512,580