UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2017		Jun. 30, 2016
Revenue
Third parties	$ 55.3	[1]	$ 60.8	[2]	$ 110.8	[1]	$ 121.1	[2]
Related parties	31.5	[1]	26.0	[2]	60.4	[1]	57.9	[2]
Total revenue	86.8	[1]	86.8	[2]	171.2	[1]	179.0	[2]
Costs and expenses
Operations and maintenance – third parties	22.9	[1]	14.9	[2]	38.5	[1]	27.6	[2]
Operations and maintenance – related parties	7.1	[1]	7.4	[2]	18.2	[1]	15.1	[2]
General and administrative – third parties	2.8	[1]	2.0	[2]	4.6	[1]	4.2	[2]
General and administrative – related parties	8.2	[1]	7.6	[2]	16.6	[1]	14.9	[2]
Depreciation, amortization and accretion	9.6	[1]	8.9	[2]	19.1	[1],[3]	18.0	[2],[4]
Property and other taxes	3.4	[1]	3.3	[2]	7.6	[1]	7.7	[2]
Total costs and expenses	54.0	[1]	44.1	[2]	104.6	[1]	87.5	[2]
Operating income	32.8	[1]	42.7	[2]	66.6	[1]	91.5	[2]
Income from equity investments	37.2	[1]	25.6	[2]	75.9	[1]	48.8	[2]
Dividend income from cost investments	6.2	[1]	4.6	[2]	13.5	[1]	7.4	[2]
Investment and dividend income	43.4	[1]	30.2	[2]	89.4	[1]	56.2	[2]
Interest expense, net	7.5	[1]	2.0	[2]	12.3	[1]	5.0	[2]
Income before income taxes	68.7	[1]	70.9	[2]	143.7	[1]	142.7	[2]
Income tax expense	0.0	[1]	0.0	[2]	0.0	[1]	0.0	[2]
Net income	68.7	[1]	70.9	[2]	143.7	[1],[3],[5]	142.7	[2],[4]
Less: Net income attributable to noncontrolling interests	1.0	[1]	4.6	[2]	3.0	[1]	8.4	[2]
Less: Net income attributable to noncontrolling interests	2.2	[1]	2.5	[2]	4.4	[1]	15.2	[2]
Net income attributable to the Partnership	65.5	[1]	63.8	[2]	136.3	[1]	119.1	[2]
Limited Partners' interest in net income attributable to the Partnership	$ 51.2	[1]	$ 58.8	[2]	$ 109.9	[1]	$ 111.0	[2]
Net income per Limited Partner Unit - Basic and Diluted:
Distributions declared per Limited Partner Unit (in dollars per share)	$ 0.30410	[1]	$ 0.2500	[2]	$ 0.5951	[1]	$ 0.4850	[2]
Shell Pipeline Company L P
Costs and expenses
General partner's interest in net income attributable to the Partnership	$ 14.3	[1]	$ 5.0	[2]	$ 26.4	[1]	$ 8.1	[2]
Common
Costs and expenses
Net income attributable to the Partnership	$ 51.2		$ 36.1		$ 109.9		$ 66.6
Net income per Limited Partner Unit - Basic and Diluted:
Net income per Limited Partner Unit (in dollars per share)	$ 0.29	[1]	$ 0.35	[2]	$ 0.62	[1]	$ 0.71	[2]
Subordinated
Costs and expenses
Net income attributable to the Partnership			$ 22.7				$ 44.4
Net income per Limited Partner Unit - Basic and Diluted:
Net income per Limited Partner Unit (in dollars per share)	$ 0.00	[1]	$ 0.34	[2]	$ 0.00	[1]	$ 0.66	[2]
Common units – public
Costs and expenses
Net income					$ 54.8
Weighted average Limited Partner Units outstanding - Basic and Diluted (in millions):
Weighted average Limited Partner Units outstanding - Common (in shares)	88.4	[1]	81.1	[2]	88.4	[1]	72.3	[2]
Common units – public | Shell Pipeline Company L P
Costs and expenses
Net income					$ 55.1
Common units – SPLC | Shell Pipeline Company L P
Weighted average Limited Partner Units outstanding - Basic and Diluted (in millions):
Weighted average Limited Partner Units outstanding - Common (in shares)	89.0	[1]	21.5	[2]	88.9	[1]	21.5	[2]
Subordinated units – SPLC | Shell Pipeline Company L P
Weighted average Limited Partner Units outstanding - Basic and Diluted (in millions):
Weighted average Limited Partner Units outstanding - Subordinated (in shares)	0.0	[1]	67.5	[2]	0.0	[1]	67.5	[2]

[1] The 2017 financial information reflects adjustments for the acquisition of the Shell Delta, Na Kika and Refinery Gas Pipeline Operations from January 1, 2017 through May 9, 2017.

[2] Prior period financial information has been retrospectively adjusted for the acquisition of the Shell Delta, Na Kika and Refinery Gas Pipeline Operations.

[3] The 2017 financial information reflects adjustments for the acquisition of the Shell Delta, Na Kika and Refinery Gas Pipeline Operations from January 1, 2017 through May 9, 2017.

[4] Prior period financial information has been retrospectively adjusted for the acquisition of the Shell Delta, Na Kika and Refinery Gas Pipeline Operations.

[5] Prior period financial information has been retrospectively adjusted for the acquisition of the Shell Delta, Na Kika and Refinery Gas Pipeline Operations.