Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Summary of Long-Term Debt

Our long-term debt consisted of the following (in thousands):

	December 31, 2013		December 31, 2012
SemGroup 7.50% senior unsecured notes	$	300,000	$	—
SemGroup corporate revolving credit facility	70,000		201,500
Rose Rock credit facility	245,000		4,500
SemLogistics credit facility	—		—
SemMexico credit facility	—		—
Capital leases	125		86
Total long-term debt	615,125		206,086
less: current portion of long-term debt	37		24
Noncurrent portion of long-term debt	$	615,088	$	206,062

Early Redemption Premium Percentages [Table Text Block]

Year	Percentage
2016	105.625%
2017	103.750%
2018	101.875%
2019 and thereafter	100.000%

Scheduled Principal Payments of Debt

The following table summarizes the scheduled principal payments as of December 31, 2013 (in thousands). As described above, our credit agreements require accelerated principal payments under certain circumstances. As a result, principal payments may occur earlier than shown in the table below.

	7.50% Senior Unsecured Notes		SemGroup Facility		Rose Rock Facility		SemMexico Facility		Capital Leases		Total
For the year ended:
December 31, 2014	$	—	$	—	$	—	$	—	$	37	$	37
December 31, 2015	—		—		—		—		39		39
December 31, 2016	—		—		—		—		21		21
December 31, 2017	—		—		—		—		15		15
December 31, 2018	—		70,000		245,000		—		13		315,013
Thereafter	300,000		—		—		—		—		300,000
Total	$	300,000	$	70,000	$	245,000	$	—	$	125	$	615,125