Segment Data (Tables)

12 Months Ended

Dec. 31, 2016

The following is a summary of business segment operating performance as measured by contribution margin for the period indicated (in thousands):



	Year Ended December 31,
	2016			2015		2014
Pipelines and Transportation
Net sales:
Affiliate	103,749			$	102,551	80,683
Third party	18,423			28,828		10,665
Total pipelines and transportation	122,172			131,379		91,348
Operating costs and expenses:
Cost of goods sold	19,425			19,607		4,294
Operating expenses	29,235			33,751		31,979
Segment contribution margin	$	73,512		$	78,021	$	55,075
Capital spending (excluding business combinations)	$	8,478		$	16,030	$	5,804

Wholesale Marketing and Terminalling
Net sales:
Affiliate	45,815			50,013		33,900
Third party	280,072			408,277		716,005
Total wholesale marketing and terminalling	325,887			458,290		749,905
Operating costs and expenses:
Cost of goods sold	282,733			416,697		692,927
Operating expenses	7,963			11,172		7,486
Segment contribution margin	$	35,191		$	30,421	$	49,492
Capital spending (excluding business combinations)	$	3,289		$	6,397	$	3,364

Consolidated
Net sales:
Affiliate	$	149,564		$	152,564	$	114,583
Third party	298,495			437,105		726,670
Total Consolidated	448,059			589,669		841,253
Operating costs and expenses:
Cost of goods sold	302,158			436,304		697,221
Operating expenses	37,198			44,923		39,465
Contribution margin	108,703			108,442		104,567
General and administrative expenses	10,256			11,384		10,616
Depreciation and amortization	20,813			19,692		15,022
(Gain) loss on asset disposals	(16		)	104		83
Operating income	$	77,650		$	77,262	$	78,846
Capital spending (excluding business combinations)	$	11,767		$	22,427	$	9,168

The following table summarizes the total assets for each segment as of December 31, 2016 and 2015 (in thousands).



	Year Ended December 31,
	2016		2015
Pipelines and transportation	$	337,349	$	283,553
Wholesale marketing and terminalling	78,198		91,735
Total Assets	$	415,547	$	375,288