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Related Party Agreements and Transactions (Tables)

3 Months Ended

Mar. 31, 2018

Revenue received from related parties related to service and product sales were as follows:



	Three Months Ended March 31,
(In millions)	2018		2017
Service revenues
MPC	$	471	$	255
Rental income
MPC	$	145	$	67
Product sales⁽¹⁾
MPC	$	4	$	2


(1)	There were additional product sales to MPC that net to zero within the consolidated financial statements as the transactions are recorded net due to the terms of the agreements under which such product was sold. For the three months ended March 31, 2018, these sales totaled $79 million. For the three months ended March 31, 2017, these sales totaled $57 million.

Summary of Fees Received from Related Parties Included in Other Income - Related Parties

The revenue received from these related parties, included in “Other income - related parties” on the Consolidated Statements of Income, was as follows:



	Three Months Ended March 31,
(In millions)	2018		2017
MPC	$	10	$	11
MarkWest Utica EMG	4		4
Ohio Gathering	4		4
Jefferson Dry Gas	1		1
Sherwood Midstream	3		1
Other	1		1
Total	$	23	$	22

Schedule of Entity Wide Information Allocated Related Party Omnibus Agreement Costs by Income Stmt Line [Table Text Block]

Charges for services included in “General and administrative expenses” primarily relate to services that support the Partnership’s executive management, accounting and human resources activities. These charges were as follows:



	Three Months Ended March 31,
(In millions)	2018		2017
Purchases - related parties	$	36	$	15
General and administrative expenses	16		8
Total	$	52	$	23

These costs added to “Property, plant and equipment, net” were as follows:



	Three Months Ended March 31,
(In millions)	2018		2017
MPC	$	22	$	10

Schedule of Employee Services Expenses from Related Parties

These charges were as follows:



	Three Months Ended March 31,
(In millions)	2018		2017
Rental cost of sales - related parties	$	1	$	—
Purchases - related parties	114		92
General and administrative expenses	23		25
Total	$	138	$	117

Schedule of Entity Wide Information Purchases From Related Parties

The following table shows other purchases from MPC classified as “Purchases - related parties”. These purchases include product purchases, payments made to MPC in their capacity as general contractor to MPLX LP, and certain rent and lease agreements.



	Three Months Ended March 31,
(In millions)	2018		2017
MPC	$	27	$	—

Schedule of Receivables from Related Parties

Receivables from related parties were as follows:



(In millions)	March 31, 2018		December 31, 2017
MPC	$	308	$	153
MarkWest Utica EMG	1		1
Ohio Gathering	3		2
Jefferson Dry Gas	1		2
Sherwood Midstream Holdings	15		—
Other	2		2
Total	$	330	$	160

Schedule of Long Term Receivables with Related Parties

Long-term receivables with related parties, which includes straight-line rental income, were as follows:



(In millions)	March 31, 2018		December 31, 2017
MPC	$	21	$	20

Schedule of Payables to Related Parties

Payables to related parties were as follows:



(In millions)	March 31, 2018		December 31, 2017
MPC	$	115	$	470
MarkWest Utica EMG	20		29
Ohio Gathering	—		8
Sherwood Midstream	11		8
Other	—		1
Total	$	146	$	516

Summary of Deferred Revenue - Related Parties

The “Deferred revenue - related parties” balance associated with the minimum volume deficiencies and project reimbursements were as follows:



(In millions)	March 31, 2018		December 31, 2017
Minimum volume deficiencies - MPC	$	46	$	53
Project reimbursements - MPC	46		33
Total	$	92	$	86