Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2015

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information



	Nine Months Ended September 30,
(In millions)	2015				2014
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)	$	12.4			$	1.8
Income taxes paid	$	0.1			$	—
Non-cash investing and financing activities:
Net transfers of property, plant and equipment to materials and supplies inventories	$	—			$	0.7
Property, plant and equipment contributed by MPC	—				0.1

Summary of Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures

The following is a reconciliation of additions to property, plant and equipment to total capital expenditures:



	Nine Months Ended September 30,
(In millions)	2015				2014
Additions to property, plant and equipment	$	121.1			$	47.1
Plus: Increase in capital accruals	17.5				5.9
Asset retirement expenditures	0.7				1.0
Total capital expenditures	$	139.3			$	54.0