(11)	SEGMENT DATA

The Company’s operations are aggregated into two reportable business segments as follows:

Marine Transportation — Provides marine transportation principally by United States flag vessels of liquid cargoes throughout the United States inland waterway system, along all three United States coasts, in Alaska and Hawaii and, to a lesser extent, in United States coastal transportation of dry-bulk cargoes. The principal products transported include petrochemicals, black oil, refined petroleum products and agricultural chemicals.

Distribution and Services — Provides after-market services and parts for engines, transmissions, reduction gears and related equipment used in oilfield service, marine, power generation, mining, on-highway, and other industrial applications. The Company also rents equipment including generators, fork lifts, pumps and compressors for use in a variety of industrial markets, and manufactures and remanufactures oilfield service equipment, including pressure pumping units, for the oilfield service and oil and gas operator and producer markets.

The Company’s two reportable business segments are managed separately based on fundamental differences in their operations. The Company evaluates the performance of its segments based on the contributions to operating income of the respective segments, and before income taxes, interest, gains or losses on disposition of assets, other nonoperating income, noncontrolling interests, accounting changes, and nonrecurring items. Intersegment revenues, based on market-based pricing, of the distribution and services segment from the marine transportation segment of $7,535,000 and $8,150,000 for the three months ended March 31, 2019 and 2018, respectively, as well as the related intersegment profit of $754,000 and $815,000 for the three months ending March 31, 2019 and 2018, respectively, have been eliminated from the tables below.

The following tables set forth the Company’s revenues and profit or loss by reportable segment for the three months ended March 31, 2019 and 2018 and total assets as of March 31, 2019 and December 31, 2018 (in thousands):

	Three months ended March 31,
	2019			2018
Revenues:
Marine transportation	$	368,121		$	340,403
Distribution and services		376,500			401,285
	$	744,621		$	741,688
Segment profit (loss):
Marine transportation	$	35,424		$	16,180
Distribution and services		37,609			36,965
Other		(14,696	)		(10,614	)
	$	58,337		$	42,531

	March 31, 2019		December 31, 2018
Total assets:
Marine transportation	$	4,510,945	$	4,145,294
Distribution and services		1,695,223		1,653,636
Other		94,524		72,664
	$	6,300,692	$	5,871,594

The following table presents the details of “Other” segment loss for the three months ended March 31, 2019 and 2018 (in thousands):

	Three months ended March 31,
	2019			2018
General corporate expenses	$	(3,084	)	$	(4,323	)
Gain on disposition of assets		2,157			1,898
Interest expense		(13,201	)		(9,780	)
Other income (expense)		(568	)		1,591
	$	(14,696	)	$	(10,614	)

The following table presents the details of “Other” total assets as of March 31, 2019 and December 31, 2018 (in thousands):

	March 31, 2019		December 31, 2018
General corporate assets	$	92,805	$	70,169
Investment in affiliates		1,719		2,495
	$	94,524	$	72,664