Segments (Tables)

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

Our results by segment are presented in the tables below (in thousands):

	Three Months Ended March 31,
	2017			2016
Revenues:
Crude Transportation
External	$	13,979		$	17,196
Intersegment	6,554			7,213
Crude Facilities
External	9,635			10,133
Intersegment	2,506			2,746
Crude Supply and Logistics
External	297,471			176,622
SemGas
External	57,752			43,520
Intersegment	3,911			2,746
SemCAMS
External	36,798			30,866
SemLogistics
External	7,528			6,380
SemMexico
External	32,937			30,134
Corporate and Other
External	—			—
Intersegment	(12,971		)	(12,705		)
Total Revenues	$	456,100		$	314,851

	Three Months Ended March 31,
	2017			2016
Earnings from equity method investments:
Crude Transportation	$	17,088		$	20,839
Corporate and Other(1)	3			2,191
Total earnings from equity method investments	$	17,091		$	23,030
(1) Includes historical earnings from equity method investments including gain (loss) on issuance of common units by equity method investee related to our investment in NGL Energy.
	Three Months Ended March 31,
	2017			2016
Depreciation and amortization:
Crude Transportation	$	5,927		$	5,860
Crude Facilities	1,944			1,882
Crude Supply and Logistics	62			40
SemGas	8,927			8,927
SemCAMS	4,496			3,951
SemLogistics	1,815			1,960
SemMexico	937			941
Corporate and Other	491			490
Total depreciation and amortization	$	24,599		$	24,051
	Three Months Ended March 31,
	2017			2016
Income tax expense (benefit):
SemCAMS	$	1,424		$	965
SemLogistics	381			59
SemMexico	217			607
Corporate and Other	(1,927		)	(23,038		)
Total income tax expense (benefit)	$	95		$	(21,407	)
	Three Months Ended March 31,
	2017			2016
Segment profit (loss)(1):
Crude Transportation(2)	$	16,862		$	25,418
Crude Facilities	8,962			9,587
Crude Supply and Logistics	(3,615		)	9,093
SemGas	15,749			(992		)
SemCAMS	11,596			9,904
SemLogistics	3,744			2,659
SemMexico	1,679			2,318
Corporate and Other(3)	(6,894		)	(6,160		)
Total segment profit	$	48,083		$	51,827
(1) Segment profit (loss) represents revenues excluding unrealized gains (losses) related to derivative instruments plus earnings from equity method investments less cost of sales excluding depreciation and amortization and less operating and general and administrative expenses, including gains or losses on disposals or impairments.

(2) The three months ended March 31, 2017, includes a $4.5 million out of period loss on the disposal of right-of-way related to immaterial prior period errors.
(3) Corporate and Other includes amounts previously included in the SemStream segment which ceased to be a reportable segment in the second quarter of 2016 concurrent with the disposal of our limited partner interest in NGL Energy.
	Three Months Ended March 31,
	2017			2016
Reconciliation of segment profit to net loss:
Total segment profit	$	48,083		$	51,827
Less:
Net unrealized loss (gain) related to derivative instruments	27			(4,548		)
Depreciation and amortization	24,599			24,051
Loss on debt extinguishment	19,922			—
Interest expense	13,867			17,577
Foreign currency transaction loss	—			1,469
Loss on sale or impairment of equity method investment	—			39,764
Other income, net	(150		)	(188		)
Income tax expense (benefit)	95			(21,407		)
Loss from discontinued operations, net of income taxes	—			2
Net loss	$	(10,277	)	$	(4,893	)
	March 31, 2017			December 31, 2016
Total assets (excluding intersegment receivables):
Crude Transportation	$	1,102,268		$	1,042,327
Crude Facilities	149,819			156,907
Crude Supply and Logistics	532,620			484,475
SemGas	683,364			683,952
SemCAMS	384,992			379,785
SemLogistics	137,965			135,387
SemMexico	85,013			75,440
Corporate and Other(1)	100,685			116,699
Total	$	3,176,726		$	3,074,972
(1) Corporate and Other includes amounts previously included in the SemStream segment which ceased to be a reportable segment in the second quarter of 2016 concurrent with the disposal of our limited partner interest in NGL Energy.
	March 31, 2017			December 31, 2016
Equity investments:
Crude Transportation	$	413,453		$	415,356
Corporate and Other(1)	18,936			18,933
Total equity investments	$	432,389		$	434,289
(1) Corporate and Other includes amounts previously included in the SemStream segment which ceased to be a reportable segment in the second quarter of 2016 concurrent with the disposal of our limited partner interest in NGL Energy.