Business Segment Information

Our operations consist of four operating segments (see Note 1 for discussion of segment reporting change):


•	Offshore Pipeline Transportation – offshore transportation of crude oil and natural gas in the Gulf of Mexico;


•	Sodium Minerals and Sulfur Services – trona and trona-based exploring, mining, processing, producing, marketing and selling activities, as well as processing of high sulfur (or “sour”) gas streams for refineries to remove the sulfur, and selling the related by-product, sodium hydrosulfide (or “NaHS,” commonly pronounced "nash");


•	Onshore Facilities and Transportation – terminaling, blending, storing, marketing, and transporting crude oil, petroleum products (primarily fuel oil, asphalt, and other heavy refined products), and CO₂; and


•	Marine Transportation – marine transportation to provide waterborne transportation of petroleum products and crude oil throughout North America.

Substantially all of our revenues are derived from, and substantially all of our assets are located in, the United States.

We define Segment Margin as revenues less product costs, operating expenses (excluding non-cash charges, such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. In addition, our Segment Margin definition excludes the non-cash effects of our legacy stock appreciation rights plan and includes the non-income portion of payments received under direct financing leases.

Our chief operating decision maker (our Chief Executive Officer) evaluates segment performance based on a variety of measures including Segment Margin, segment volumes, where relevant, and capital investment.

Segment information for each year presented below is as follows:



	Offshore Pipeline Transportation			Sodium Minerals & Sulfur Services			Onshore Facilities & Transportation			Marine Transportation		Total
Year Ended December 31, 2017
Segment Margin ^(a)	$	317,540		$	130,333		$	96,376		$	50,294	$	594,543
Capital expenditures ^(b)	$	8,815		$	1,354,469		$	149,123		$	68,414	$	1,580,821
Revenues:
External customers	$	319,455		$	470,789		$	1,044,083		$	194,050	$	2,028,377
Intersegment ^(c)	(1,216		)	(8,167		)	(1,854		)	11,237		$	—
Total revenues of reportable segments	$	318,239		$	462,622		$	1,042,229		$	205,287	$	2,028,377
Year Ended December 31, 2016
Segment Margin ^(a)	$	336,620		$	79,508		$	83,364		$	70,079	$	569,571
Capital expenditures ^(b)	$	46,277		$	2,274		$	316,638		$	78,804	$	443,993
Revenues:
External customers	$	332,514		$	180,665		$	993,103		$	206,211	$	1,712,493
Intersegment ^(c)	2,165			(9,162		)	187			6,810		$	—
Total revenues of reportable segments	$	334,679		$	171,503		$	993,290		$	213,021	$	1,712,493
Year Ended December 31, 2015
Segment Margin ^(a)	$	197,723		$	80,246		$	95,394		$	103,222	$	476,585
Capital expenditures ^(b)	$	1,527,320		$	1,595		$	409,687		$	69,009	$	2,007,611
Revenues:
External customers	$	140,230		$	187,257		$	1,688,850		$	230,192	$	2,246,529
Intersegment ^(c)	—			(9,377		)	812			8,565		$	—
Total revenues of reportable segments	$	140,230		$	177,880		$	1,689,662		$	238,757	$	2,246,529

Total assets by reportable segment were as follows:



	December 31, 2017		December 31, 2016		December 31, 2015
Offshore pipeline transportation	2,486,803		2,575,335		2,623,478
Sodium minerals and sulfur services	1,848,188		395,043		394,626
Onshore facilities and transportation	1,927,976		1,875,403		1,615,335
Marine transportation	824,777		813,722		777,952
Other assets	49,737		43,089		48,208
Total consolidated assets	$	7,137,481	$	5,702,592	$	5,459,599


(a)	A reconciliation of total Segment Margin to net income attributable to Genesis Energy, L.P. for each year is presented below.

(b) Capital expenditures include maintenance and growth capital expenditures, such as fixed asset additions (including enhancements to existing facilities and construction of growth projects) as well as acquisitions of businesses and contributions to equity investees related to same. In addition to construction of growth projects, capital spending in our sodium minerals and sulfur services segment included $1.3 billion during the year ended December 31, 2017 related to the acquisition of our Alkali Business. During the year ended December 31, 2016, capital expenditures in our offshore pipeline transportation segment included $35.1 million related to the acquisition of the remaining 50% ownership in Deepwater Gateway. Additionally, in 2015, there was $1.5 billion in capital spending to fund our Enterprise acquisition. Capital spending in this segment also included $2.5 million during the year ended December 31, 2015 representing capital contributions to our SEKCO pipeline to fund our share of the construction costs for its pipeline (as prior to our Enterprise acquisition in July 2015, we owned a 50% interest in the SEKCO pipeline with Enterprise owning the remaining 50%).

(c) Intersegment sales were conducted under terms that we believe were no more or less favorable than then-existing market conditions.

Reconciliation of total Segment Margin to net income attributable to Genesis Energy, L.P.:



	Year Ended December 31,
	2017			2016			2015
Total Segment Margin	$	594,543		$	569,571		$	476,585
Corporate general and administrative expenses	(60,029		)	(40,905		)	(61,370		)
Depreciation, depletion, amortization and accretion	(262,021		)	(230,563		)	(155,081		)
Interest expense	(176,762		)	(139,947		)	(100,596		)
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income ⁽¹⁾	(31,852		)	(39,276		)	(43,018		)
Non-cash items not included in Segment Margin	(14,305		)	(3,221		)	2,809
Cash payments from direct financing leases in excess of earnings	(6,921		)	(6,277		)	(5,685		)
Gain on step up of historical basis	—			—			332,380
Loss on extinguishment of debt	(6,242		)	—			(19,225		)
Differences in timing of cash receipts for certain contractual arrangements ⁽²⁾	17,540			13,253			6,359
Gain on sales of assets	40,311			—			—
Other, net	(2,985		)	(6,044		)	(6,643		)
Non-cash provision for leased items no longer in use	(12,589		)	—			—
Income tax expense	3,959			(3,342		)	(3,987		)
Net income attributable to Genesis Energy, L.P.	$	82,647		$	113,249		$	422,528


(1)	Includes distributions attributable to the period and received during or promptly following such period.


(2)	Certain cash payments received from customers under certain of our minimum payment obligation contracts are not recognized as revenue under GAAP in the period in which such payments are received.