Document:

Form of MPLX LP 2012 Incentive Compensation Plan

 Exhibit 10.3 
 MPLX LP 
 2012 INCENTIVE COMPENSATION PLAN 

1. Objectives. This MPLX LP 2012 Incentive Compensation Plan (the “Plan”) has been adopted by MPLX GP LLC, a Delaware limited
liability company (the “Company”), the general partner of MPLX LP, a Delaware limited partnership (the “Partnership”) in order to compensate Employees, Officers and Directors with a high degree of training, experience and
ability; to attract new Employees, Officers and Directors whose services are considered particularly valuable to the business of the Company; to encourage the sense of proprietorship of such persons; and to promote the active interest of such
persons in the development and financial success of the Partnership, the Company and their Affiliates. These objectives are to be accomplished by making Awards under this Plan and thereby providing Participants with a proprietary interest in, and
alignment with, the growth and performance of the Partnership, the Company and their Affiliates. 
 2. Definitions. As used
herein, the terms set forth below shall have the following respective meanings: 
 “Affiliate” means, with
respect to any Person, any other Person that directly or indirectly through one or more intermediaries controls, is controlled by or is under common control with, the Person in question. As used herein, the term “control” means the
possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a Person, whether through ownership of voting securities, by contract or otherwise. 

“ASC Topic 718” means Accounting Standards Codification Topic 718, Compensation – Stock Compensation, or any
successor accounting standard. 
 “Authorized Officer” means the Chief Executive Officer of the Company (or any
other officer of the Company to whom he or she shall delegate). 
 “Award” means an Option, Restricted Unit,
Phantom Unit, DER, Substitute Award, Unit Appreciation Right, Other Unit-Based Award, Performance Unit or Profits Interest Unit granted under the Plan. 
 “Award Agreement” means the written or electronic agreement by which an Award shall be evidenced. 
 “Board” means the board of directors or board of managers, as the case may be, of the Company. 
 “Cause” means, unless otherwise set forth in an Award Agreement or other written agreement between the Company and the applicable Participant, a finding by the Committee, before or after
the Participant’s termination of Service, of: (i) any material failure by the Participant to perform the Participant’s duties and responsibilities under any written agreement between the Participant and the Company or its
Affiliate(s); (ii) any act of fraud, embezzlement, theft or misappropriation by the Participant relating to the Company, the Partnership or any of their Affiliates; (iii) the Participant’s commission of a felony or a crime involving
moral turpitude; (iv) any gross negligence or intentional misconduct on the part of the Participant in the conduct of the Participant’s duties and responsibilities with the Company or any Affiliate(s) of

 
the Company or which adversely affects the image, reputation or business of the Company, the Partnership or their Affiliates; or (v) any material breach by the Participant of any agreement
between the Company or any of its Affiliates, on the one hand, and the Participant on the other. The findings and decision of the Committee with respect to such matter, including those regarding the acts of the Participant and the impact thereof,
will be final for all purposes. 
 “Change in Control” shall have the meaning as set forth and defined in
individual award agreements. Notwithstanding the foregoing, if a Change in Control constitutes a payment event with respect to any Award which provides for the deferral of compensation and is subject to Section 409A, the transaction or event
with respect to such Award must also constitute a “change in control event,” as defined in Treasury Regulation §1.409A-3(i)(5), and as relates to the holder of such Award, to the extent required to comply with Section 409A.

 “Code” means the Internal Revenue Code of 1986, as amended. 

“Commission” means the United States Securities and Exchange Commission or any successor organization. 

“Committee” means the Board, except that it shall mean such committee or sub-committee of the Board as may be appointed
by the Board to administer the Plan, or as necessary to comply with applicable legal requirements or listing standards. 

“Director” means a member of the board of directors or board of managers, as the case may be, of the Company, the
Partnership or any of their Affiliates who is not an Employee or Officer, provided that such person is eligible to receive Awards that may be registered under a Registration Statement on Form S-8 (or any successor form) in accordance with applicable
Commission or other rules or regulations. 
 “Disability” means either (a) a condition that renders the
Participant wholly and continuously disabled for a period of at least two years, to the extent that the Participant is unable to engage in any occupation or perform any work for gainful compensation or profit for which he or she is, or may become,
reasonably qualified by education, training or experience; or (b) a condition for which the Participant has obtained a Social Security Administration determination of disability. If a Disability constitutes a payment event with respect to any
Award which provides for the deferral of compensation and is subject to Section 409A, then, to the extent required to comply with Section 409A, the Participant must also be considered “disabled” within the meaning of
Section 409A(a)(2)(C) of the Code. 
 “Distribution Equivalent Right” or “DER” means a contingent
right to receive an amount in cash at such times as set forth in an Award Agreement or as determined by the Committee, Units, Restricted Units and/or Phantom Units equal in value to the distributions made by the Partnership with respect to a Unit
during the period such Award is outstanding. 
 “Employee” means an employee of the Company, the Partnership or
any of their Affiliates, provided that such employee is eligible to receive Awards that may be registered under a Registration Statement on Form S-8 (or any successor form) in accordance with applicable Commission or other rules or regulations. The
term Employee under this Plan may also include any other individual who may be considered an “employee” under a Registration Statement on Form S-8 (or any successor form) in accordance with applicable Commission or other rules or
regulations. 

  
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 “Exchange Act” means the Securities Exchange Act of 1934, as amended.

 “Fair Market Value” of a Unit means, as of a particular date: (i) if the Units are listed on a national
securities exchange, the closing price per Unit on the consolidated transaction reporting system for the principal national securities exchange on which the Units are listed on that date, or, if there shall have been no such sale so reported on that
date, on the next succeeding date on which such a sale is so reported, or, at the discretion of the Committee, any other reasonable and objectively determinable method based on the listed price per Unit which reflects the price prevailing on the
exchange at the time of grant; (ii) if the Units are not so listed but are quoted on a national securities market, the closing sales price per Unit reported on such market for such date, or, if there shall have been no such sale so reported on
that date, on the next succeeding date on which such a sale is so reported; or (iii) if the Units are not so listed or quoted, the most recent value determined by an independent appraiser appointed by the Company for such purpose. For any
determination of Fair Market Value, if the commitment to measure the Fair Market Value is based on the average trading price over a specified period, such period cannot extend more than thirty (30) days before or thirty (30) days after the
grant date and such commitment must be irrevocably established for specified Awards before the beginning of such period. 

“Officer” means any individual who is appointed or elected to serve as an officer of the Company, the Partnership or any
of their Affiliates, provided that such individual is eligible to receive Awards that may be registered under a Registration Statement on Form S-8 (or any successor form) in accordance with applicable Commission or other rules or regulations.

 “Option” means an option to purchase Units granted pursuant to 6(a) of the Plan. 

“Other Unit-Based Award” means an Award granted pursuant to 6(f) of the Plan. 

“Participant” means an Employee, Officer or Director granted an Award under the Plan and any authorized transferee of
such individual. 
 “Partnership Agreement” means the Agreement of Limited Partnership of the Partnership, as it
may be amended or amended and restated from time to time. 
 “Person” shall have the meaning ascribed to such
term in Section 3(a)(9) of the Exchange Act and used in Sections 13(d) and 14(d) thereof, including a “group” as defined in Section 13(d) thereof. 

“Phantom Unit” means a notional interest granted under the Plan that, to the extent vested, entitles the Participant to
receive a Unit or an amount of cash equal to the Fair Market Value of a Unit, as determined by the Committee in its discretion. 

“Plan Year” means the calendar year. 

  
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 “Profits Interest Unit” means to the extent authorized by the Partnership
Agreement, an interest in the Partnership that is intended to constitute a “profits interest” within the meaning of the Code, Department of Treasury Regulations promulgated thereunder and any published guidance by the Internal Revenue
Service with respect thereto. 
 “Recoupment Provision” means any clawback or recovery provision required by
applicable law including United States federal and state securities laws or by any national securities exchange on which the Units of the Partnership are listed or any applicable regulatory requirement, or as set forth in any individual Award
Agreement under the Plan. 
 “Restricted Period” means the period established by the Committee with respect to
an Award during which the Award remains subject to forfeiture and is either not exercisable by or payable to the Participant, as the case may be. 
 “Restricted Unit” means a Unit granted pursuant to 6(b) of the Plan that is subject to a Restricted Period. 
 “Retirement” means termination of employment of an Employee on or after the time at which the Employee either (a) is eligible for retirement under the Marathon Petroleum Retirement
Plan or Speedway Retirement Plan, or a successor retirement plan of either, if the Employee is or was a participant in such plan or (b) has attained age 50 and completed ten years of employment with the Partnership, the Company or their
Affiliates, as applicable. However, the term Retirement does not include an event following which the Participant remains an Employee. Notwithstanding the foregoing, the term “Retirement” if separately defined in an individual Award
Agreement, shall have the meaning as set forth in any such individual Award Agreement. 
 “Securities Act” means
the Securities Act of 1933, as amended. 
 “SEC” means the Securities and Exchange Commission, or any successor
thereto. 
 “Section 409A” means Section 409A of the Code and the Department of Treasury Regulations and
other interpretive guidance issued thereunder, including without limitation any such regulations or other guidance that may be issued after the Effective Date (as defined in 9 below). 

“Service” means service as an Employee, Officer or Director. The Committee, in its sole discretion, shall determine the
effect of all matters and questions relating to terminations of Service, including, without limitation, the questions of whether and when a termination of Service occurred and/or resulted from a discharge for Cause, and all questions of whether
particular changes in status or leaves of absence constitute a termination of Service. The Committee, in its sole discretion, subject to the terms of any applicable Award Agreement, may determine that a termination of Service has not occurred in the
event of (a) a termination where there is simultaneous commencement by the Participant of a relationship with the Partnership, the Company or any of their Affiliates as an Employee, Officer or Director or (b) a termination which results in
a temporary severance of the Service relationship. 
 “Substitute Award” means an Award granted pursuant to 6(g)
of the Plan. 

  
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 “Unit” means a common unit of the Partnership. 

“Unit Appreciation Right” or “UAR” means a contingent right that entitles the holder to receive the
excess of the Fair Market Value of a Unit on the exercise date of the UAR over the exercise price of the UAR. Such excess value may take the form of Units or cash as determined by the Committee. 

“Unit Award” means an Award granted pursuant to 6(d) of the Plan. 

3. Administration. 
 (a) The Plan shall be administered by the Committee, subject to subsection (b) below; provided, however, that in the event that the Board is not also serving as the Committee, the Board, in
its sole discretion, may at any time and from time to time exercise any and all rights and duties of the Committee under the Plan. The governance of the Committee shall be subject to the charter, if any, of the Committee as approved by the Board.
Subject to the terms of the Plan and applicable law, and in addition to other express powers and authorizations conferred on the Committee by the Plan, the Committee shall have full power and authority to: (i) designate Participants;
(ii) determine the type or types of Awards to be granted to a Participant; (iii) determine the number of Units to be covered by Awards; (iv) determine the terms and conditions of any Award; (v) determine whether, to what extent,
and under what circumstances Awards may be settled, exercised, canceled or forfeited; (vi) interpret and administer the Plan and any instrument or agreement relating to an Award made under the Plan; (vii) establish, amend, suspend or waive
such rules and regulations and appoint such agents as it shall deem appropriate for the proper administration of the Plan; and (viii) make any other determination and take any other action that the Committee deems necessary or desirable for the
administration of the Plan. The Committee may correct any defect or supply any omission or reconcile any inconsistency in the Plan or an Award Agreement in such manner and to such extent as the Committee deems necessary or appropriate. Unless
otherwise expressly provided in the Plan, all designations, determinations, interpretations and other decisions under or with respect to the Plan or any Award shall be within the sole discretion of the Committee, may be made at any time, and shall
be final, conclusive and binding upon all Persons, including the Company, the Partnership, any of their Affiliates, any Participant and any beneficiary of any Participant. 
 (b) To the extent permitted by applicable law and the rules of any securities exchange on which the Units are listed, quoted or traded, the Board or Committee may from time to time delegate to a committee
of one or more members of the Board or one or more Officers the authority to grant or amend Awards or to take other administrative actions pursuant to 3(a); provided, however, that in no event shall an Officer be delegated the authority to
grant Awards to, or amend Awards held by, the following individuals: (i) individuals who are subject to Section 16 of the Exchange Act, or (ii) Officers (or Directors) to whom authority to grant or amend Awards has been delegated
hereunder; provided, further, that any delegation of administrative authority shall only be permitted to the extent that it is permissible under applicable provisions of the Code and applicable securities laws and the rules of any securities
exchange on which the Units are listed, quoted or traded. Any delegation hereunder shall be subject to such restrictions and limitations as the Board or Committee, as applicable, specifies at the time of such delegation, and the Board or Committee,
as applicable, may at any time rescind the authority so delegated or appoint a new delegate. At all times, the delegate appointed under this 3(b) shall serve in such capacity at the pleasure of the Board and the Committee. 

  
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 4. Units Available for Awards. 

(a) Limits on Units Deliverable. Subject to adjustment as provided in 4(c), the number of Units that will be available to be
delivered with respect to Awards under the Plan is 2,750,000 common units. If any Award is forfeited, canceled, exercised, paid or otherwise terminates or expires without the actual delivery of Units pursuant to such Award (for the avoidance of
doubt, the grant of Restricted Units is not a delivery of Units for this purpose unless and until such Restricted Units vest and any restrictions placed upon them under the Plan lapse), the Units subject to such Award shall again be available for
Awards under the Plan. To the extent permitted by applicable law and securities exchange rules, Substitute Awards and Units issued in assumption of, or in substitution for, any outstanding awards of any entity acquired in any form of combination by
the Partnership or any Affiliate thereof shall not be counted against the Units available for issuance pursuant to the Plan. There shall not be any limitation on the number of Awards that may be paid in cash. Awards that by their terms do not permit
settlement in Units shall not reduce the number of Units available for issuance pursuant to the Plan. 
 (b) Sources of Units
Deliverable Under Awards. Any Units delivered pursuant to an Award shall consist, in whole or in part, of Units acquired in the open market, from the Partnership, any Affiliate thereof or any other Person, or Units otherwise issuable by the
Partnership, or any combination of the foregoing, as determined by the Committee in its discretion. 
 (c) Anti-dilution
Adjustments. 
 (i) Equity Restructuring. With respect to any “equity restructuring” event
that could result in an additional compensation expense to the Company or the Partnership pursuant to the provisions of ASC Topic 718 if adjustments to Awards with respect to such event were discretionary, the Committee shall equitably adjust the
number and type of Units covered by each outstanding Award and the terms and conditions, including the exercise price and performance criteria (if any), of such Award to equitably reflect such event and shall adjust the number and type of Units (or
other securities or property) with respect to which Awards may be granted under the Plan after such event. With respect to any other similar event that would not result in an ASC Topic 718 accounting charge if the adjustment to Awards with respect
to such event were subject to discretionary action, the Committee shall have complete discretion to adjust Awards and the number and type of Units (or other securities or property) with respect to which Awards may be granted under the Plan in such
manner as it deems appropriate with respect to such other event. 
 (ii) Other Changes in Capitalization.
In the event of any non-cash distribution, Unit split, combination or exchange of Units, merger, consolidation or distribution (other than normal cash distributions) of Partnership assets to unitholders, or any other change affecting the Units of
the Partnership, other than an “equity restructuring,” the Committee may make equitable adjustments, if any, to reflect such change with respect to (A) the aggregate number and kind of Units that may be issued under the Plan;
(B) the number 

  
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and kind of Units (or other securities or property) subject to outstanding Awards; (C) the terms and conditions of any outstanding Awards (including, without limitation, any applicable
performance targets or criteria with respect thereto); and (D) the grant or exercise price per Unit for any outstanding Awards under the Plan. 
 5. Eligibility. 
 In the sole discretion of the Committee, any
Employee, Officer or Director shall be eligible to be designated a Participant and receive an Award under the Plan. 
 6.
Awards. 
 (a) Options and UARs. The Committee shall have the authority to determine the Employees,
Officers, and Directors to whom Options and/or UARs shall be granted, the number of Units to be covered by each Option or UAR, the exercise price therefore, the Restricted Period and other conditions and limitations applicable to the exercise of the
Option or UAR, including the following terms and conditions and such additional terms and conditions, as the Committee shall determine, that are not inconsistent with the provisions of the Plan. Options which are intended to comply with Treasury
Regulation Section 1.409A-1(b)(5)(i)(A) and UARs which are intended to comply with Treasury Regulation Section 1.409A-1(b)(5)(i)(B) or, in each case, any successor regulation, may be granted only if the requirements of Treasury Regulation
Section 1.409A-1(b)(5)(iii), or any successor regulation, are satisfied. Options and UARs that are otherwise exempt from or compliant with Section 409A may be granted to any eligible Employee, Officer or Director. 

(i) Exercise Price. The exercise price per Unit purchasable under an Option or subject to a UAR shall be determined
by the Committee at the time the Option or UAR is granted but, except with respect to a Substitute Award, may not be less than the Fair Market Value of a Unit as of the date of grant of the Option or UAR. 

(ii) Time and Method of Exercise. The Committee shall determine the exercise terms and any applicable Restricted
Period with respect to an Option or UAR, which may include, without limitation, provisions for accelerated vesting upon the achievement of specified performance goals and/or other events, and the method or methods by which payment of the exercise
price with respect to an Option or UAR may be made or deemed to have been made, which may include, without limitation, cash, check acceptable to the Company, withholding Units having a Fair Market Value on the exercise date equal to the relevant
exercise price from the Award, a “cashless” exercise or a “net exercise” through procedures approved by the Company, or any combination of the foregoing methods. 

(iii) Exercise of Options and UARs on Termination of Service. Each Option and UAR Award Agreement shall set forth
the extent to which the Participant shall have the right to exercise the Option or UAR following a termination of the Participant’s Service. Unless otherwise determined by the Committee, if the Participant’s Service is terminated for
Cause, the Participant’s right to exercise the Option or UAR shall terminate as of the start of business on the effective date of the Participant’s termination. 

  
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Unless otherwise determined by the Committee, to the extent the Option or UAR is not vested and exercisable as of the termination of Service, the Option or UAR shall terminate when the
Participant’s Service terminates. 
 (iv) Term of Options and UARs. The term of each Option and UAR
shall be stated in the Award Agreement, provided, that the term shall be no more than ten (10) years from the date of grant thereof. 
 (b) Restricted Units and Phantom Units. The Committee shall have the authority to determine the Employees, Officers and Directors to whom Restricted Units and/or Phantom Units shall be granted, the
number of Restricted Units or Phantom Units to be granted to each such Participant, the applicable Restricted Period, the conditions under which the Restricted Units or Phantom Units may become vested or forfeited and such other terms and
conditions, including, without limitation, restrictions on transferability, as the Committee may establish with respect to such Awards. 
 (i) Payment of Phantom Units. The Committee shall specify in an Award Agreement, or permit the Participant to elect in accordance with the requirements of Section 409A, the conditions and
dates or events upon which the cash or Units underlying an Award of Phantom Units shall be issued, which dates or events shall not be earlier than the date on which the Phantom Units vest and become non-forfeitable and which conditions and dates or
events shall be subject to compliance with Section 409A (unless the Phantom Units are exempt therefrom). 

(ii) Vesting of Restricted Units. Upon or as soon as reasonably practicable following the vesting of each
Restricted Unit, subject to satisfying the tax withholding obligations of 8(b), the Participant shall be entitled to have the restrictions removed from his or her Unit certificate (or book-entry account, as applicable) so that the Participant then
holds an unrestricted Unit. 
 (c) DERs. The Committee shall have the authority to determine the Employees, Officers
and/or Directors to whom DERs are granted, whether such DERs are in tandem with other Awards or constitute separate Awards, whether the DERs shall be paid directly to the Participant, be credited to a bookkeeping account (with or without interest in
the discretion of the Committee), any vesting restrictions and payment provisions applicable to the DERs, and such other provisions or restrictions as determined by the Committee in its discretion, all of which shall be specified in the applicable
Award Agreements. Distributions in respect of DERs shall be credited as of the distribution dates during the period between the date an Award is granted to a Participant and the date such Award vests, is exercised, is distributed or expires, as
determined by the Committee. Such DERs shall be converted to cash, Units, Restricted Units and/or Phantom Units by such formula and at such time and subject to such limitations as may be determined by the Committee. Tandem DERs may be subject to the
same or different vesting restrictions as the tandem Award, or be subject to such other provisions or restrictions as determined by the Committee in its discretion. Notwithstanding the foregoing, DERs shall only be paid in a manner that is either
exempt from or in compliance with Section 409A. 

  
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 (d) Unit Awards. Awards of Units may be granted under the Plan (i) to such
Employees, Officers and/or Directors and in such amounts as the Committee, in its discretion, may select, and (ii) subject to such other terms and conditions, including, without limitation, restrictions on transferability, as the Committee may
establish with respect to such Awards. 
 (e) Profits Interest Units. Any Award consisting of Profits Interest Units may
be granted to an Employee, Officer or Director for the performance of services to or for the benefit of the Partnership (i) in the Participant’s capacity as a partner of the Partnership, (ii) in anticipation of the Participant
becoming a partner of the Partnership, or (iii) as otherwise determined by the Committee. At the time of grant, the Committee shall specify the date or dates on which the Profits Interest Units shall vest and become non-forfeitable, and may
specify such conditions to vesting as it deems appropriate. Profits Interest Units shall be subject to such restrictions on transferability and other restrictions as the Committee may impose. 

(f) Other Unit-Based Awards/Performance Units. Other Unit-Based Awards may be granted under the Plan to such Employees, Officers
and/or Directors as the Committee, in its discretion, may select. An Other Unit-Based Award shall be an Award denominated or payable in, valued in or otherwise based on or related to Units, in whole or in part. The Committee shall determine the
terms and conditions of any Other Unit-Based Award. Upon vesting, an Other Unit-Based Award may be paid in cash, Units (including Restricted Units) or any combination thereof as provided in the Award Agreement. Without limiting the type or number of
Other Unit-Based Awards that may be made under the Plan, any Other Unit-Based Award may be in the form of an Other Unit-Based Award which vests based on performance criteria selected by the Committee (“Performance Units”). Any Award which
vests based on performance criteria shall have a minimum performance period of one year from the grant date, provided that the Committee (or its delagate) may provide for earlier vesting following a Change in Control or other specified events
involving the Company, or upon a termination of employment by reason of death, Disability or Retirement. Additionally, Employees who are Officers at the time a performance vested Award is made that will settle in full-value Units may be subject to
an additional holding period after the performance period ends. The Committee shall set performance criteria in its sole discretion which, depending on the extent to which they are met, may determine the value and/or amount of such performance
vested Awards that will be paid out to the Participant and/or the portion of a performance vested Award that may be exercised. Further, the Committee shall have the discretion to adjust the performance goals (either up or down) as well as the level
of the performance vested Award that a Participant may earn if it determines that the occurrence of external changes or other unanticipated business conditions have materially affected the fairness of the goals and/or have unduly influenced the
Company’s ability to meet them, including without limitation, events such as material acquisitions, force majeure events, unlawful acts committed against the Company or its property, labor disputes, legal mandates, asset write-downs,
litigation, claims, judgments or settlements, the effect of changes in tax law or other such laws or provisions affecting reported results, accruals for reorganization and restructuring programs, changes in the capital structure of the Company and
extraordinary accounting changes. In addition, performance goals and performance vested Awards shall be calculated without regard to any changes in accounting standards or codifications that may be required by the Financial Accounting Standards
Board (or any successor organization) after such performance goals are established. 

  
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 (g) Substitute Awards. Awards may be granted under the Plan in substitution of
similar awards held by individuals who become Employees, Officers or Directors as a result of a merger, consolidation or acquisition by the Partnership or an Affiliate of another entity or the assets of another entity. Such Substitute Awards that
are Options or UARs may have exercise prices less than the Fair Market Value of a Unit on the date of the substitution if such substitution complies with Section 409A and other applicable laws and securities exchange rules. 

(h) General. 
 (i) Award Agreements. Each Award shall be evidenced in either an individual Award Agreement or within a separate plan, policy, agreement or other written document, which shall reflect any vesting
conditions or restrictions imposed by the Committee covering a period of time specified by the Committee and shall also contain such terms, conditions and limitations as shall be determined by the Committee in its sole discretion, including but not
limited to applicable Recoupment Provisions. Where signature or electronic acceptance of the Award Agreement by the Participant is required, any such Awards for which the Award Agreement is not signed or electronically accepted within 11 months of
the grant date shall be forfeited. 
 (ii) Forfeitures. Except as otherwise provided in the terms of an
Award Agreement, upon termination of a Participant’s Service for any reason during an applicable Restricted Period, all outstanding, unvested Awards held by such Participant shall be automatically forfeited by the Participant. The Committee
may, in its discretion, waive in whole or in part such forfeiture with respect to any such Award; provided, that any such waiver shall be effective only to the extent that such waiver will not cause any Award intended to satisfy the
requirements of Section 409A to fail to satisfy such requirements. 
 (iii) Awards May Be Granted
Separately or Together. Awards may, in the discretion of the Committee, be granted either alone or in addition to, in tandem with, or in substitution for any other Award granted under the Plan or any award granted under any other plan of the
Company or any Affiliate. Awards granted in addition to or in tandem with other Awards or awards granted under any other plan of the Company or any Affiliate may be granted either at the same time as or at a different time from the grant of such
other Awards or awards. 
 (iv) Director Awards. The Committee may, in its discretion, provide that Awards
granted to Directors shall be granted pursuant to a non-discretionary formula established by the Committee by resolution, subject to the limitations of the Plan. Any such resolution shall set forth the type of Awards to be granted to Directors, the
number of Units to be subject to Director Awards, the conditions on which such Awards shall be granted, vest, become exercisable and/or payable and expire, and such other terms and conditions as the Committee shall determine in its discretion. The
Committee may also establish a written policy for grants to Directors which shall set forth the type and terms of Awards granted to Directors and such policy may be modified by the Committee from time to time in its discretion. 

  
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 (v) Limits on Transfer of Awards. 

(A) Except as provided in paragraph (C) below, each Option and UAR shall be exercisable only by the Participant
during the Participant’s lifetime, or by the Person to whom the Participant’s rights shall pass by will or the laws of descent and distribution. 
 (B) Except as provided in paragraph (C) below, no Award and no right under any such Award may be assigned, alienated, pledged, attached, sold or otherwise transferred or encumbered by a Participant
other than by will or the laws of descent and distribution and any such purported assignment, alienation, pledge, attachment, sale, transfer or encumbrance shall be void and unenforceable against the Company, the Partnership or any Affiliate.

 (C) The Committee may provide in an Award Agreement that an Award may, on such terms and conditions as the
Committee may from time to time establish, be transferred by a Participant without consideration to any “family member” of the Participant, as defined in the instructions for use of the Registration Statement on Form S-8 (or any successor
form) under the Securities Act, as applicable, or any other transferee specifically approved by the Committee after taking into account any state, federal, local or foreign tax and securities laws applicable to transferable Awards. In addition,
vested Units may be transferred to the extent permitted by the Partnership Agreement and not otherwise prohibited by the Award Agreement or any other agreement restricting the transfer of such Units. 

(vi) Term of Awards. Subject to 6(a)(iv) above, the term of each Award, if any, shall be for such period as may be
determined by the Committee. 
 (vii) Unit Certificates. Unless otherwise determined by the Committee or
required by any applicable law, rule or regulation, neither the Company nor the Partnership shall deliver to any Participant certificates evidencing Units issued in connection with any Award and instead such Units shall be recorded in the books of
the Partnership (or, as applicable, its transfer agent or equity plan administrator). All certificates for Units or other securities of the Partnership delivered under the Plan and all Units issued pursuant to book entry procedures pursuant to any
Award or the exercise thereof shall be subject to such stop-transfer orders and other restrictions as the Committee may deem advisable under the Plan or the rules, regulations and/or other requirements of the SEC, any securities exchange upon which
such Units or other securities are then listed, and any applicable federal or state laws, and the Committee may cause a legend or legends to be inscribed on any such certificates or book entry to make appropriate reference to such restrictions.

 (viii) Consideration for Grants. To the extent permitted by applicable law, Awards may be granted for
such consideration, including services, as the Committee shall determine. 

  
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 (ix) Delivery of Units or other Securities and Payment by Participant of
Consideration. Notwithstanding anything in the Plan or any Award Agreement to the contrary, subject to compliance with Section 409A, the Company shall not be required to issue or deliver any certificates or make any book entries evidencing
Units pursuant to the exercise or vesting of any Award, unless and until the Board or the Committee has determined, with advice of counsel, that the issuance of such Units is in compliance with all applicable laws, regulations of governmental
authorities and, if applicable, the requirements of any securities exchange on which the Units are listed or traded, and the Units are covered by an effective registration statement or applicable exemption from registration. In addition to the terms
and conditions provided herein, the Board or the Committee may require that a Participant make such reasonable covenants, agreements and representations as the Board or the Committee, in its discretion, deems advisable in order to comply with any
such laws, regulations or requirements. Without limiting the generality of the foregoing, the delivery of Units pursuant to the exercise or vesting of an Award may be deferred for any period during which, in the good faith determination of the
Committee, the Company is not reasonably able to obtain or deliver Units pursuant to such Award without violating applicable law or the applicable rules or regulations of any governmental agency or authority or securities exchange. No Units or other
securities shall be delivered pursuant to any Award until payment in full of any amount required to be paid pursuant to the Plan or the applicable Award Agreement (including, without limitation, any exercise price or tax withholding) is received by
the Company. 
 7. Amendment and Termination; Certain Transactions. 

Except as required by applicable law or the rules of the principal securities exchange, if any, on which the Units are traded: 

(a) Amendments to the Plan. Subject to 7(b) below, the Board or the Committee may amend, alter, suspend, discontinue or terminate
the Plan in any manner without the consent of any partner, Participant, other holder or beneficiary of an Award, or any other Person. The Board shall obtain unitholder approval of any Plan amendment to the extent necessary to comply with applicable
law or securities exchange listing standards or rules. 
 (b) Amendments to Awards. Subject to 7(a) above, the Committee
may waive any conditions or rights under, amend any terms of, or alter any Award theretofore granted, provided that no change, other than pursuant to 7(c) below, in any Award shall materially reduce the rights or benefits of a Participant with
respect to an Award without the consent of such Participant. No Option Award may be repriced, replaced, regranted through cancellation or modified without approval of the unitholders of the Partnership (except as contemplated in 7(c) below), if the
effect would be to reduce the exercise price for the Units underlying such Award. 
 (c) Actions Upon the Occurrence of
Certain Events. Upon the occurrence of a Change in Control, any transaction or event described in 4(c) above, any change in applicable laws or regulations affecting the Plan or Awards hereunder, or any change in accounting principles affecting
the financial statements of the Company or the Partnership, the Committee, in its sole discretion, without the consent of any Participant or holder of an Award, and on such terms and conditions as it deems appropriate, may take any one or more of
the following actions: 

  
 -12-

 (i) provide for either (A) the termination of any Award in exchange for
a payment in an amount, if any, equal to the amount that would have been attained upon the exercise of such Award or realization of the Participant’s rights under such Award (and, for the avoidance of doubt, if as of the date of the occurrence
of such transaction or event, the Committee determines in good faith that no amount would have been payable upon the exercise of such Award or realization of the Participant’s rights, then such Award may be terminated by the Company without
payment) or (B) the replacement of such Award with other rights or property selected by the Committee in its sole discretion having an aggregate value not exceeding the amount that could have been attained upon the exercise of such Award or
realization of the Participant’s rights had such Award been currently exercisable or payable or fully vested; 
 (ii) provide that such Award be assumed by the successor or survivor entity, or a parent or subsidiary thereof, or be exchanged for similar options, rights or awards covering the equity of the successor
or survivor, or a parent or subsidiary thereof, with appropriate adjustments as to the number and kind of equity interests and prices; 
 (iii) make adjustments in the number and type of Units (or other securities or property) subject to outstanding Awards, the number and kind of outstanding Awards, the terms and conditions of (including
the exercise price) and/or the vesting and performance criteria included in, outstanding Awards; 
 (iv) provide
that such Award shall vest or become exercisable or payable, notwithstanding anything to the contrary in the Plan or the applicable Award Agreement; and 
 (v) provide that the Award cannot be exercised or become payable after such event and shall terminate upon such event and may also provide, in the Committee’s sole discretion, to pay or substitute
the full value of such Award. 
 (d) Notwithstanding the foregoing, (i) with respect to an above event that constitutes an
“equity restructuring” that would be subject to a compensation expense pursuant to ASC Topic 718, the provisions in 4(c) above shall control to the extent they are in conflict with the discretionary provisions of this 7, provided,
however, that nothing in 7(c) or 4(c) above shall be construed as providing any Participant or any beneficiary of an Award any rights with respect to the “time value,” “economic opportunity” or “intrinsic value” of
an Award or limiting in any manner the Committee’s actions that may be taken with respect to an Award as set forth in this 7 or in 4(c) above; and (ii) no action shall be taken under this 7 which shall cause an Award to result in taxation
under Section 409A, to the extent applicable to such Award. 
 8. General Provisions. 

(a) No Rights to Award. No Person shall have any claim to be granted any Award under the Plan, and there is no obligation for
uniformity of treatment of Participants, including the treatment upon termination of Service. The terms and conditions of Awards need not be the same with respect to each recipient. 

  
 -13-

 (b) Tax Withholding. Unless other arrangements have been made that are acceptable to
the Company, the Company or any Affiliate thereof is authorized to deduct or withhold, or cause to be deducted or withheld, from any Award, from any payment due or transfer made under any Award, or from any compensation or other amount owing to a
Participant the amount (in cash or Units, including Units that would otherwise be issued pursuant to such Award or other property) of any applicable taxes payable in respect of an Award, including its grant, its exercise, the lapse of restrictions
thereon or any payment or transfer thereunder or under the Plan, and to take such other action as may be necessary in the opinion of the Company to satisfy its withholding obligations for the payment of such taxes. In the event that Units that would
otherwise be issued pursuant to an Award are used to satisfy such withholding obligations, the number of Units which may be so withheld or surrendered shall be limited to the number of Units which have a Fair Market Value on the date of withholding
equal to the aggregate amount of such liabilities based on the minimum statutory withholding rates for federal, state, local and foreign income tax and payroll tax purposes that are applicable to such supplemental taxable income. 

(c) No Right to Employment or Services. The grant of an Award shall not be construed as giving a Participant the right to be
retained in the employ of the Company, the Partnership or any of their Affiliates, or to remain on the Board, as applicable. Furthermore, the Company, the Partnership and/or an Affiliate thereof may at any time dismiss a Participant from employment
free from any liability or any claim under the Plan, unless otherwise expressly provided in the Plan, any Award Agreement or other written agreement between any such entity and the Participant. 

(d) Limitation of Liability. No member of the Board or the Committee or Officer to whom the Board or the Committee has delegated
authority in accordance with the provisions of 3 of this Plan shall be liable for anything done or omitted to be done by him or her by any member of the Board or the Committee or by any Officer in connection with the performance of any duties under
this Plan, except for his or her own willful misconduct or as expressly provided by statute. 
 (e) No Rights as
Unitholder. Except as otherwise provided herein, a Participant shall have none of the rights of a unitholder with respect to Units covered by any Award unless and until the Participant becomes the record owner of such Units. 

(f) Section 409A. To the extent that the Committee determines that any Award granted under the Plan is subject to
Section 409A, the Award Agreement evidencing such Award shall include the terms and conditions required by Section 409A. To the extent applicable, the Plan and Award Agreements shall be interpreted in accordance with Section 409A.
Notwithstanding any provision of the Plan to the contrary, in the event that following the Effective Date (as defined in 9 below), the Committee determines that any Award may be subject to Section 409A, the Committee may adopt such amendments
to the Plan and the applicable Award Agreement, adopt other policies and procedures (including amendments, policies and procedures with retroactive effect) and/or take any other actions that the Committee determines are necessary or appropriate to
preserve the intended tax treatment of the Award, including without limitation, actions intended to (i) exempt the Award from Section 409A, or (ii) comply with the requirements of Section 409A; provided, however, that
nothing herein shall create any 

  
 -14-

 
obligation on the part of the Committee, the Partnership, the Company or any of their Affiliates to adopt any such amendment, policy or procedure or take any such other action, nor shall the
Committee, the Partnership, the Company or any of their Affiliates have any liability for failing to do so. Notwithstanding any provision in the Plan to the contrary, the time of payment with respect to any Award that is subject to Section 409A
shall not be accelerated, except as permitted under Treasury Regulation Section 1.409A-3(j)(4). Notwithstanding any provision of this Plan to the contrary, if a Participant is a “Specified Employee” within the meaning of
Section 409A as of the date of such Participant’s termination of employment and the Company determines, in good faith, that immediate payment of any amounts or benefits under this Plan would cause a violation of Section 409A, then any
amounts or benefits which are payable under this Plan upon the Participant’s “separation from service” within the meaning of Section 409A that: (i) are subject to the provisions of Section 409A; (ii) are not
otherwise exempt under Section 409A; and (iii) would otherwise be payable during the first six-month period following such separation from service, shall be paid as soon as practicable on the first business day next following the earlier
of: (1) the date that is six months and one day following the date of termination; or (2) the date of the Participant’s death. 
 (g) Lock-Up Agreement. Each Participant shall agree, if so requested by the Company or the Partnership and any underwriter in connection with any public offering of securities of the Partnership or
any Affiliate, not to directly or indirectly offer, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant for the sale of or otherwise dispose of or transfer any
Units held by it for such period, not to exceed one hundred eighty (180) days following the effective date of the relevant registration statement filed under the Securities Act in connection with such public offering, as such underwriter shall
specify reasonably and in good faith. The Company or the Partnership may impose stop-transfer instructions with respect to securities subject to the foregoing restrictions until the end of such 180-day period. Notwithstanding the foregoing, the
180-day period may be extended for up to such number of additional days as is deemed necessary by such underwriter or the Company or Partnership to continue coverage by research analysts in accordance with FINRA Rule 2711 or any successor rule.

 (h) Compliance with Laws. The Plan, the granting and vesting of Awards under the Plan and the issuance and delivery of
Units and the payment of money under the Plan or under Awards granted or awarded hereunder are subject to compliance with all applicable federal, state, local and foreign laws, rules and regulations (including but not limited to state, federal and
foreign securities law and margin requirements), the rules of any securities exchange or automated quotation system on which the Units are listed, quoted or traded, and to such approvals by any listing, regulatory or governmental authority as may,
in the opinion of counsel for the Company or the Partnership, be necessary or advisable in connection therewith. Any securities delivered under the Plan shall be subject to such restrictions, and the Person acquiring such securities shall, if
requested by the Company or the Partnership, provide such assurances and representations to the Company or the Partnership as the Company or the Partnership may deem necessary or desirable to assure compliance with all applicable legal requirements.
To the extent permitted by applicable law, the Plan and Awards granted or awarded hereunder shall be deemed amended to the extent necessary to conform to such laws, rules and regulations. In the event an Award is granted to or held by a Participant
who is employed or providing services outside the United States, the Committee may, in its sole discretion, modify the provisions of the 

  
 -15-

 
Plan or of such Award as they pertain to such Participant to comply with applicable foreign law or to recognize differences in local law, currency or tax policy. The Committee may also impose
conditions on the grant, issuance, exercise, vesting, settlement or retention of Awards in order to comply with such foreign law and/or to minimize the Company’s or the Partnership’s obligations with respect to tax equalization for
Participants employed outside their home country. 
 (i) Governing Law. The validity, construction and effect of the Plan
and any rules and regulations relating to the Plan shall be determined in accordance with the laws of the State of Delaware without regard to its conflicts of laws principles. 
 (j) Severability. If any provision of the Plan or any Award is or becomes, or is deemed to be, invalid, illegal or unenforceable in any jurisdiction or as to any Person or Award, or would
disqualify the Plan or any Award under any law deemed applicable by the Committee, such provision shall be construed or deemed amended to conform to the applicable law or, if it cannot be construed or deemed amended without, in the determination of
the Committee, materially altering the intent of the Plan or the Award, such provision shall be stricken as to such jurisdiction, Person or Award and the remainder of the Plan and any such Award shall remain in full force and effect. 

(k) Other Laws. The Committee may refuse to issue or transfer any Units or other consideration under an Award if, in its sole
discretion, it determines that the issuance or transfer of such Units or such other consideration might violate any applicable law or regulation, the rules of the principal securities exchange on which the Units are then traded, or entitle the
Partnership or an Affiliate to recover the same under Section 16(b) of the Exchange Act, and any payment tendered to the Company by a Participant, other holder or beneficiary in connection with the exercise of such Award shall be promptly
refunded to the relevant Participant, holder or beneficiary. 
 (l) No Trust or Fund Created. Neither the Plan nor any
Award shall create or be construed to create a trust or separate fund of any kind or a fiduciary relationship between the Company, the Partnership or any of their Affiliates, on the one hand, and a Participant or any other Person, on the other hand.
To the extent that any Person acquires a right to receive payments pursuant to an Award, such right shall be no greater than the right of any general unsecured creditor of the Partnership or any participating Affiliate of the Partnership.

 (m) No Fractional Units. No fractional Units shall be issued or delivered pursuant to the Plan or any Award, and the
Committee shall determine whether cash, other securities or other property shall be paid or transferred in lieu of any fractional Units or whether such fractional Units or any rights thereto shall be canceled, terminated or otherwise eliminated.

 (n) Headings. Headings are given to the sections and subsections of the Plan solely as a convenience to facilitate
reference. Such headings shall not be deemed in any way material or relevant to the construction or interpretation of the Plan or any provision hereof. 
 (o) No Guarantee of Tax Consequences. None of the Board, the Committee, the Company or the Partnership provides or has provided any tax advice to any Participant or any other Person or makes or has
made any assurance, commitment or guarantee that any federal, state or local tax treatment will (or will not) apply or be available to any Participant or other Person. 

  
 -16-

 (p) Non-United States Participants. The Board or Committee may grant Awards to
persons outside the United States under such terms and conditions as may, in the judgment of the Board or Committee, as applicable, be necessary or advisable to comply with the laws of the applicable foreign jurisdictions and, to that end, may
establish sub-plans, modified vesting, exercise or settlement procedures and other terms and procedures. Notwithstanding the above, neither the Board nor the Committee may take any actions under this Plan, and no Awards shall be granted, that would
violate the Exchange Act, the Code or any other applicable law. 
 (q) Facility Payment. Any amounts payable hereunder to
any Person under legal disability or who, in the judgment of the Committee, is unable to manage properly his or her financial affairs, may be paid to the legal representative of such Person, or may be applied for the benefit of such Person in any
manner that the Committee may select, and the Partnership, the Company and all of their Affiliates shall be relieved of any further liability for payment of such amounts. 
 9. Term of the Plan. 
 The Plan shall be effective on the date on
which the Plan is adopted by the Board (the “Effective Date”) and shall continue until terminated by the Board. However, any Award granted prior to such termination, and the authority of the Board or the Committee to amend, alter, adjust,
suspend, discontinue or terminate any such Award or to waive any conditions or rights under such Award, shall extend beyond such termination date. 

  
 -17-Employee Services Agreement (Marathon Petroleum Logistics)

 Exhibit 10.6 
 Execution copy 
 EMPLOYEE SERVICES AGREEMENT 

THIS EMPLOYEE SERVICES AGREEMENT (“Agreement”) is made as of October 1, 2012 by Marathon Petroleum Logistics Services LLC,
a Delaware limited liability company (“MPLS”), MPLX GP LLC, a Delaware limited liability company (“GP”), and Marathon Pipe Line LLC, a Delaware limited liability company (“MPL”). 

WHEREAS, MPLS is engaged in the business of providing employee related services for the operation of midstream assets; 

WHEREAS, GP is the general partner of MPLX LP, a Delaware limited partnership engaged in the business of owning and operating midstream
petroleum industry assets including crude oil and refined products pipelines and storage facilities; 
 WHEREAS, MPL is a
subsidiary of MPLX LP and is engaged in the business of pipeline transportation and storage of crude oil and refined products; 

WHEREAS, the Parties deem it to be appropriate and in the best interests of each of them that MPLS provide certain Services to GP and MPL
on the terms and conditions set forth herein; and 
 WHEREAS, it is the intent of the Parties that such services be provided
based on an arm’s-length standard, and the Fees set forth on Annex B are intended to reflect such standard. 
 NOW,
THEREFORE, in consideration of the forgoing and the mutual agreements contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows: 

ARTICLE I 

DEFINITIONS 
 1.1 Definitions. As used in this Agreement: 
 (a) “Additional
Services” means the Additional Services as defined in Section 3.2. Any Additional Services provided pursuant to this Agreement shall be deemed to be “Services” under this Agreement. 

(b) “Affiliate” means, as to any specified Person, any other Person that, directly or indirectly through one or more
intermediaries or otherwise, controls, is controlled by or is under common control with the specified Person. For purposes of this definition, “control” of a Person means the possession, directly or indirectly, of the power to direct or
cause the direction of the management or policies of such Person, whether by contract or otherwise. Notwithstanding the foregoing, neither MPL nor any of the MPL Affiliated Entities shall be deemed to be Affiliates of MPLS or any of the MPLS
Affiliated Entities. 

 (c) “Agreement” means this Employee Services Agreement and all Annexes
attached and all amendments, modifications and changes thereto. 
 (d) “Authorized Representative” means, for
each Party, any of the individuals listed on Annex A under the name of such Party. 
 (e) “Availed Party” has
the meaning set forth in Section 8.2(a). 
 (f) “Confidential Information” means any proprietary or
confidential information that is competitively sensitive material or otherwise of value to a Party or its Affiliates and not generally known to the public, including trade secrets, scientific or technical information, design, invention, process,
procedure, formula, improvements, product planning information, marketing strategies, financial information, information regarding operations, consumer and/or customer relationships, consumer and/or customer identities and profiles, sales estimates,
business plans, and internal performance results relating to the past, present or future business activities of a Party or its Affiliates and the consumers, customers, clients and suppliers of any of the foregoing. Confidential Information includes
such information as may be contained in or embodied by documents, substances, engineering and laboratory notebooks, reports, data, specifications, computer source code and object code, flow charts, databases, drawings, pilot plants or demonstration
or operating facilities, diagrams, specifications, bills of material, equipment, prototypes and models, and any other tangible manifestation (including data in computer or other digital format) of the foregoing; provided, however, that
Confidential Information does not include information that a receiving Party can show (i) has been published or has otherwise become available to the general public as part of the public domain without breach of this Agreement, (ii) has
been furnished or made known to the receiving Party without any obligation to keep it confidential by a Third Party under circumstances which are not known to the receiving Party to involve a breach of the Third Party’s obligations to a Party
or (iii) was developed independently of information furnished or made available to the receiving Party as contemplated under this Agreement. 
 (g) “Default Rate” means the rate per annum equal to the prime rate as established by Citibank, N.A. from time to time, plus 2.0%, compounded monthly. 

(h) “Effective Date” means October 1, 2012. 

(i) “Expenses” has the meaning set forth in Section 6.1. 

(j) “Fees” for the Services shall be as set forth on Annex B. 

(k) “GP” has the meaning set forth in the first paragraph of this Agreement. 

(l) “GP Indemnified Party” means GP and each of its directors, managers, officers, employees and agents, and each of the
heirs, executors, successors and assigns of any of the foregoing. 

  
 2 

 (m) “Indemnified Party” means a GP Indemnified Party, a MPL Indemnified
Party or a MPLS Indemnified Party, as the case may be. 
 (n) “Indemnifying Party” means a Party providing
indemnification to another Party in accordance with the terms of this Agreement. 
 (o) “Losses” means any
damages, penalties, losses and expenses, including reasonable attorney fees, investigation and litigation expenses, incurred by an Indemnified Party. 
 (p) “MPL” has the meaning set forth in the first paragraph of this Agreement. 
 (q) “MPL Affiliated Entity” means MPLX LP and each of MPLX LP’s direct and indirect subsidiaries other than MPL. 

(r) “MPL Indemnified Party” means MPL, each MPL Affiliated Entity and each of their respective directors, managers,
officers, employees and agents, and each of the heirs, executors, successors and assigns of any of the foregoing. 
 (s)
“MPLS” has the meaning set forth in the first paragraph of this Agreement. 
 (t) “MPLS Affiliated
Entity” means Marathon Petroleum Company LP and each of its direct and indirect subsidiaries other than MPLS. 
 (u)
“MPLS Indemnified Party” means MPLS, each MPLS Affiliated Entity and each of their respective directors, managers, officers, employees and agents, and each of the heirs, executors, successors and assigns of any of the foregoing.

 (v) “Omnibus Agreement” means that certain Omnibus Agreement to be entered into by and among Marathon
Petroleum Corporation, Marathon Petroleum Company LP, MPL Investment LLC, MPLX Pipe Line Holdings LP, MPLX LP, MPLX GP LLC, MPLX Operations LLC, MPLX Terminal and Storage LLC, Marathon Pipe Line LLC and Ohio River Pipe Line LLC. 

(w) “Party” means MPLS, GP or MPL, as applicable. “Parties” means MPLS, GP and MPL,
collectively. 
 (x) “Person” means a natural person, corporation, partnership, limited liability
company, joint stock company, trust, estate, joint venture, union, association or unincorporated organization, governmental authority or any other form of business or professional entity. 

(y) “Representatives” has the meaning set forth in Section 8.1. 

(z) “Security Regulations” has the meaning set forth in Section 8.2(a). 

(aa) “Services” means the Services generally described on Annex B and any other Service provided by
MPLS or any of its Affiliates pursuant to this Agreement. 

  
 3 

 (bb) “Systems” has the meaning set forth in Section 8.2(a).

 (cc) “Term” has the meaning set forth in Section 2.1. 

(dd) “Third Party” means a Person that is not a Party or an Affiliate of a Party. 

1.2 Interpretation. In this Agreement, unless the context clearly indicates otherwise: 

(a) words used in the singular include the plural and words used in the plural include the singular; 

(b) references to any Person include such Person’s successors and assigns but, if applicable, only if such successors and assigns
are permitted by this Agreement, and a reference to such Person’s “Affiliates” shall be deemed to mean such Person’s Affiliates after the Effective Date; 
 (c) any reference to any gender includes the other gender; 
 (d) the words
“include,” “includes” and “including” shall be deemed to be followed by the words “without limitation”; 
 (e) any reference to any Article, Section or Annex means such Article or Section of, or such Annex to, this Agreement, as the case may be, and references in any Section or definition to any clause means
such clause of such Section or definition; 
 (f) the words “herein,” “hereunder,” “hereof,”
“hereto” and words of similar import shall be deemed references to this Agreement as a whole and not to any particular Section or other provision hereof; 
 (g) any reference to any agreement, instrument or other document means such agreement, instrument or other document as amended, supplemented and modified from time to time to the extent permitted by the
provisions thereof and by this Agreement; 
 (h) any reference to any law (including statutes and ordinances) means such law
(including all rules and regulations promulgated thereunder) as amended, modified, codified or reenacted, in whole or in part, and in effect at the time of determining compliance or applicability; 

(i) relative to the determination of any period of time, “from” means “from and including,” “to” means
“to but excluding” and “through” means “through and including”; 
 (j) if there is any conflict
between the provisions of the main body of this Agreement and the Annexes hereto, the provisions of the main body of this Agreement shall control unless explicitly stated otherwise in such Annex; 

  
 4 

 (k) the titles to Articles and headings of Sections contained in this Agreement have been
inserted for convenience of reference only and shall not be deemed to be a part of or to affect the meaning or interpretation of this Agreement; 
 (l) any portion of this Agreement obligating a Party to take any action or refrain from taking any action, as the case may be, shall mean that such Party shall also be obligated to cause its relevant
Affiliates to take such action or refrain from taking such action, as the case may be (and, accordingly, if Services are provided by Affiliates of MPLS, references to “MPLS” shall be deemed to be references to such Affiliates which provide
the Services under this Agreement); 
 (m) unless otherwise specified in this Agreement, all references to dollar amounts herein
shall be in respect of lawful currency of the United States; and 
 (n) the language of this Agreement shall be deemed to be the
language the Parties hereto have chosen to express their mutual intent, and no rule of strict construction shall be applied against either Party. 
 ARTICLE II 
 TERM 

2.1 Term. The term of this Agreement shall commence on the Effective Date and end on September 30, 2017. The term
shall automatically be renewed thereafter on a year to year basis thereafter, provided that, subject to Article X, either party may terminate this Agreement upon 180 days written notice to the other. The initial term and any renewals thereof
are referred as the “Term”. 
 ARTICLE III 

PERFORMANCE OF SERVICES 
 3.1 General. (a) During the Term, and subject to the terms and conditions of this Agreement, MPLS will use commercially reasonable efforts to provide, or cause to be provided, on behalf
of the GP and for the benefit of MPL and the MPL Affiliated Entities, the Services to MPL and the MPL Affiliated Entities. Unless specifically provided to the contrary on Annex B, all Services provided pursuant to this Agreement shall be
performed or provided, as applicable: (i) with the use of reasonable care; (ii) consistent with this Agreement and in substantially the same manner (including as to level, quality and timeliness) as such Services have been provided by
MPL’s former employees prior to the Effective Date; (iii) in material compliance with applicable laws, rules and regulations; and (iv) with substantially the same priority under comparable circumstances as it provides such services to
itself and its Affiliates. All Services performed or provided by MPLS shall be under the direction, supervision and control of the GP. 
 (b) Notwithstanding anything to the contrary in this Agreement, neither MPLS nor any of its Affiliates, shall be required to perform Services or take any actions relating thereto that conflict with or
violate any applicable law, contract, license, sublicense, authorization, certification or permit. 

  
 5 

 (c) MPLS will provide such suitably qualified and experienced personnel to GP for the
performance of Services as MPLS is able to make available to GP, and GP will have the right to approve such personnel. In the event that MPLS is unable to provide suitably qualified and experienced personnel, as determined in good faith by GP, GP
may engage (or hire a third party to engage) personnel to provide the relevant Services. 
 3.2 Additional
Services. If GP or MPL reasonably determines that additional services (not listed on Annex B) of the type that are customarily required by similarly situated companies in the midstream petroleum industry are necessary to conduct the
business of MPL, then GP or MPL may provide written notice thereof to MPLS in accordance with Section 3.3. Upon receipt of such notice by MPLS, if MPLS is willing, in its sole discretion, to provide such additional service during the
Term, the Parties will negotiate in good faith an amendment to Annex B to include the additional service (each such service an “Additional Service”), the terms and conditions for the provision of each Additional Service and
the Fees payable to MPLS for each Additional Service, such Fees to be determined with the intent that they reflect an arm’s-length standard. 
 3.3 Modification; Third Party Providers. (a) Any requests or other communications from a Party to another Party regarding (i) the Services, (ii) any modification or alteration
to the provision of the Services or (iii) the provision of Additional Services must be made by an Authorized Representative (it being understood that the receiving Party shall not be obligated to agree to any modification or alteration
requested thereby). 
 (b) Each Party acknowledges and agrees that certain of the Services to be provided under this Agreement
have been, and will continue to be provided to GP or MPL by Third Parties designated by MPLS. To the extent so provided, MPLS shall use commercially reasonable efforts to (i) cause such Third Parties to provide such Services under this
Agreement and (ii) enable GP, MPL and the MPL Affiliated Entities to avail themselves of such Services; provided, however, that if any such Third Party is unable or unwilling to provide any such Services, the Parties agree to use
their commercially reasonable efforts to determine the manner in which such Services can best be provided. It is acknowledged and agreed that any costs or expenses to be incurred in connection with obtaining Services from a Third Party shall be paid
by GP or MPL; provided that MPLS shall use commercially reasonable efforts to communicate in advance the expected costs or expenses to be incurred. 
 3.4 Disclaimer of Warranties; Force Majeure. 
 (a) Except as
expressly set forth in this Agreement, to the fullest extent permitted by applicable law: (i) GP and MPL acknowledge and agree that MPLS makes no warranties of any kind with respect to the Services; and (ii) MPLS expressly disclaims all
warranties, expressed or implied, of any kind with respect to the Services, including any warranty of non-infringement, merchantability, fitness for a particular purpose or conformity to any representation or description as to the Services provided
hereunder. EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE SERVICES WILL BE PROVIDED AS IS, WHERE IS, WITH ALL FAULTS, AND WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT, MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE, CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION, TITLE OR ANY OTHER WARRANTY WHATSOEVER. 

  
 6 

 (b) If any Party is prevented from or delayed in complying, either totally or in part, with
any of the terms or provisions of this Agreement, excluding any obligation to make payments hereunder, by reason of fire, flood, storm, strike, walkout, lockout or other labor trouble or shortage, delays by unaffiliated suppliers or carriers,
shortages of fuel, power, raw materials or components, equipment failure, any law, order, proclamation, regulation, ordinance, demand, seizure or requirement of any governmental authority, riot, civil commotion, war, rebellion, act of terrorism,
nuclear or other accident, explosion, casualty, pandemic, or act of God, or act, omission or delay in acting by any governmental or military authority or Third Party or any other cause, whether or not of a class or kind listed in this sentence,
beyond the reasonable control and without the fault of the affected Party (each a “Force Majeure Event”), then upon notice to the other Parties, the affected provisions and/or other requirements of this Agreement shall be suspended
during the period of such Force Majeure Event and, unless otherwise set forth herein to the contrary, the Party affected by the Force Majeure Event shall have no liability to the other Parties or any of their Affiliates or any other Person in
connection therewith. Upon becoming aware of a Force Majeure Event, the Party affected by the Force Majeure Event shall promptly notify the other Parties in writing of the existence and anticipated duration of such Force Majeure Event. Each Party
shall use commercially reasonable efforts to promptly mitigate or overcome such Force Majeure Event as soon as possible; provided, however, that nothing in this Section 3.4(b) will be construed to require the settlement of
any strike, walkout, lockout or other labor dispute on terms which, in the reasonable judgment of the affected Party, are contrary to its interest. It is understood that the settlement of a strike, walkout, lockout or other labor dispute will be
entirely within the discretion of the affected Party. If MPLS is unable to provide any of the Services due to a Force Majeure Event, each Party shall use commercially reasonable efforts to cooperatively seek a solution that is mutually satisfactory
to the Parties. GP and MPL shall have the right, but not the obligation, to engage subcontractors to perform any such Services that MPLS is unable to provide for the duration of the Force Majeure Event; provided however, that any Fees
paid or payable by MPL to MPLS under this Agreement shall be reduced (or refunded, if applicable) on a dollar-for-dollar basis by any amounts paid by or on behalf of MPL to any subcontractors with respect to any Services that MPLS is unable to
perform as a result of a Force Majeure Event. For the avoidance of doubt, if GP or MPL engages subcontractors to perform any Services during a Force Majeure Event, MPLS shall not be required to refund, or otherwise be liable for, any amounts in
excess of the aggregate Fees paid or owed to MPLS with respect to such Services during the period of the Force Majeure Event. 

ARTICLE IV 

COOPERATION 
 4.1 Cooperation. Each Party shall use good faith efforts to cooperate with the other Parties in all matters relating to the provision and receipt of the Services, including providing
in a timely manner any information, documentation, approvals and acceptances reasonably requested by the Parties, other than information and documentation protected by attorney-client privilege. 

  
 7 

 4.2 Consents. (a) Each Party shall provide reasonable cooperation to
obtain all Third Party consents for any Third Party software or other Third Party intellectual property related to the provision of the Services sufficient to enable MPLS to perform the Services in accordance with this Agreement; provided,
however, that no Party shall be obligated under this Agreement to pay any consideration (other than de minimis transfer fees), grant any concession or incur any liability to any Third Party to obtain any such Third Party’s consent.

 (b) If any Third Party consent or approval required for the provision of Services hereunder is not obtained, then, unless and
until such Third Party consent or approval is obtained, the Parties shall, to the extent practicable, cooperate with each other in achieving a reasonable alternative arrangement for GP and MPL to obtain such Services. 

ARTICLE V 

FEES 

5.1 Fees. GP and MPL shall pay MPLS the Fees for the Services as set forth on Annex B and in accordance with
Article VI. 
 5.2 Taxes. To the extent required by applicable law, MPLS shall add to any Fees due under
this Agreement amounts equal to any sales, use or similar taxes, however designated or levied, based upon the provision of the Services. MPLS shall be solely responsible for the collection and remittance of any such taxes to the appropriate tax
authorities. The Parties shall cooperate with each other to minimize any such taxes to the extent reasonably practicable. If additional taxes are determined to be due with respect to the Services provided hereunder as a result of an audit by any
applicable tax authority, MPL agrees to reimburse MPLS for the additional taxes due from MPLS including interest and penalty. MPL shall have the right to contest with the tax authority at MPL’s sole expense the amount of any taxes or the result
of any audit. MPLS will be responsible for any penalty or interest resulting from its failure to remit any invoiced taxes. Notwithstanding anything in this Agreement to the contrary, this Section 5.2 shall, to the fullest extent
permitted by applicable law, survive the termination of this Agreement and remain in effect until the expiration of the relevant statutes of limitations. 
 5.3 Adjustments. In the event of the termination of this Agreement prior to the scheduled expiration of the Term (a) with respect to any Services for which the Fee for such Services is
charged as a flat monthly rate, if termination occurs other than the end of the month, the Fee for that month shall be prorated to reflect a partial month, and (b) with respect to any other Services, all amounts due pursuant to the terms hereof
with respect to the Services shall be appropriately prorated and reduced to reflect such shortened period during which such Services are actually provided, and MPLS shall refund to GP or MPL the appropriate prorated amount for any such Services that
have been paid for in advance. Notwithstanding the immediately preceding sentence, to the extent any amounts due or advances made hereunder related to costs or expenses that have been or will be incurred and that cannot be recovered by MPLS, such
amounts due or advances made shall not be prorated or reduced and MPLS shall not be required to refund any prorated amount for such costs or expenses; and GP or MPL shall reimburse MPLS for any Third Party cancellation or similar charges incurred as
a result of such early termination. 

  
 8 

 ARTICLE VI 
 INVOICE AND PAYMENT; AUDIT 
 6.1 Invoices and Payment. Within
20 days following the end of each month during the Term, MPLS will submit to MPL for payment a written statement of amounts due under this Agreement for such month. The statement will set forth the Fees, in the aggregate and itemized, based on the
descriptions set forth on Annex B. Each statement will contain reasonably satisfactory documentation in support of such amounts as specified therein and such other supporting detail as the other Party may reasonably require to validate such
amounts due. Except as otherwise provided in this Agreement, GP and MPL shall reimburse MPLS in accordance with this Article VI for all out-of-pocket costs and expenses actually paid by MPLS to Third Parties on behalf of MPL in connection
with providing the Services (“Expenses”). 
 6.2 Timing of Payment; No Offsets. MPL will pay all
amounts due pursuant to this Agreement within 10 days after the receipt of the invoice therefor. MPL shall not offset any amounts owing to it by MPLS or any of its Affiliates against amounts payable hereunder. 

6.3 Non-Payment. If MPL fails to pay the full amount of any invoice within 30 days after its receipt of the invoice,
such failure shall be considered a material default under this Agreement for purposes of Section 10.2. Payments made after the date they are due shall bear interest at the Default Rate. 

6.4 Payment Disputes. Subject to Section 6.5, MPL may object to any amounts for any Service invoiced to it at
any time before or after payment is made, provided such objection is made in writing to MPLS within 90 days following the end of the calendar year in which such Services were performed. MPL shall timely pay the disputed items in full while
resolution of the dispute is pending; provided, however, that MPLS shall pay interest at the Default Rate on any amounts it is required to return to GP or MPL upon resolution of the dispute. Payment of any amount shall not constitute
approval thereof. Any dispute under this Section 6.4 shall be resolved in accordance with the provisions of Section 12.2. 
 6.5 Audit Rights. (a) MPL may, at its own cost and expense, audit (or cause an independent Third Party auditor to audit) the books and records of MPLS to the extent necessary to
determine MPLS’s compliance with this Agreement with respect to Fees and Expenses charged or the performance of MPLS’s obligations under this Agreement. MPL shall have the right to conduct such audit no more than once with respect to each
calendar year during the Term; provided, however, that any such audit shall not be commenced later than 12 months after the end of the calendar year to be audited. 

(b) Any audit shall be conducted during regular business hours and in a manner that does not unreasonably interfere with the operations
of MPLS. MPL shall provide notice to MPLS not less than 30 days prior to the commencement of the audit and shall specify the date on which the audit will commence. If the audit concludes that an overpayment or underpayment has occurred during the
audited period, then MPL may raise an objection pursuant to Section 6.4. 

  
 9 

 ARTICLE VII 
 CONTROL OF SERVICES; OWNERSHIP OF ASSETS 
 7.1 Control of
Services. Notwithstanding anything to the contrary in this Agreement, GP, for itself and for MPL and the MPL Affiliated Entities, shall at all times have exclusive authority to manage and control the business and operations of MPLS. In
connection with managing and controlling the business and operations of MPLS, the provision of the Services shall be under the ultimate direction, control and supervision of GP. 

7.2 Employee Status. During the Term of this Agreement: 

(a) No employee of MPLS shall be deemed an employee of GP or MPL by reason of such employee’s involvement in providing Services
provided hereunder. MPLS shall bear the sole responsibility for payment of each such employee’s wages, benefits, all withholding obligations to federal, state and local taxation and insurance authorities and all other costs and expenses
associated with such employees, including workers’ compensation expense. 
 (b) Subject to the rights of GP to direct and
control the performance and provision of the Services as set forth in this Agreement, MPLS shall serve as the employer directly controlling the personnel that it provides to perform such Services and shall retain the exclusive right to review
employees’ performance, determine employees’ compensation and benefits, discipline employees and determine whether or not to continue employees’ employment. 
 (c) Notwithstanding anything in this Agreement to the contrary, no provision of this Agreement (i) shall be construed as granting employees any employment rights for a specific duration or
constraining MPLS’s right to terminate the employment relationship with any of its employees, or (ii) affecting the ability of any MPLS employee to be considered for transfers or promotions to positions listed on any internal job posting
system. 
 7.3 Assets. All procedures, methods, systems, strategies, tools, equipment, facilities and other
resources used by a Party or any of its Affiliates in connection with the provision of the Services hereunder shall remain the property of such Party or its Affiliates and, except as otherwise provided herein, shall at all times be under the sole
direction and control of such Person. No license under any patents, know-how, trade secrets, copyrights or other rights is granted by this Agreement or any disclosure in connection with this Agreement by any Party. 

  
 10 

 ARTICLE VIII 
 CONFIDENTIALITY; SECURITY 
 8.1 Confidentiality. 

(a) From and after the Effective Date, each Party shall hold, and shall cause its respective Subsidiaries and Affiliates
and its and their directors, managers, officers, employees, agents, consultants, advisors, and other representatives (collectively, “Representatives”) to hold all Confidential Information of another Party in strict confidence, with
at least the same degree of care that applies to such Party’s confidential and proprietary information and shall not use such Confidential Information except in connection with the performance of the Services hereunder, and shall not release or
disclose such Confidential Information to any other Person, except its Representatives. Each Party shall be responsible for any breach of this section by any of its Representatives. 

(b) If a Party receives a subpoena or other demand for disclosure of Confidential Information received from any other
Party or must disclose to a governmental authority any Confidential Information received from such other Party in order to obtain or maintain any required governmental approval, the receiving Party shall, to the extent legally permissible, provide
notice to the providing Party before disclosing such Confidential Information. Upon receipt of such notice, the providing Party shall promptly either seek an appropriate protective order, waive the receiving Party’s confidentiality obligations
hereunder to the extent necessary to permit the receiving Party to respond to the demand, or otherwise fully satisfy the subpoena or demand or the requirements of the applicable governmental authority. If the receiving Party is nonetheless legally
compelled to disclose such Confidential Information, or if the providing Party does not promptly respond as contemplated by this section, the receiving Party may disclose that portion of Confidential Information required to be disclosed by the
subpoena or other demand. 
 (c) Each Party acknowledges that the disclosing Party would not have an adequate
remedy at law for the breach by the receiving Party of any one or more of the covenants contained in this Section 8.1 and agrees that, in the event of such breach, the disclosing Party may, in addition to the other remedies that may be
available to it, to the fullest extent permitted by applicable law, apply to a court for an injunction to prevent breaches of this Section 8.1 and to enforce specifically the terms and provisions of this Section 8.1.
Notwithstanding any other section hereof, the provisions of this Section 8.1 shall survive the termination of this Agreement. 
 8.2 System Security. 
 (a) If any Party is given access to another
Party’s computer systems or software (collectively, “Systems”) in connection with the Services, the Party given access (the “Availed Party”) shall comply with all of the other Party’s system security
policies, procedures and requirements that have been provided to the Availed Party in advance and in writing (collectively, the “Security Regulations”), and shall not tamper with, compromise or circumvent any security or audit
measures employed by such other Party. The Availed Party shall access and use only those Systems of the other Party for which it has been granted the right to access and use. 
 (b) Each Party shall use commercially reasonable efforts to ensure that only those of its personnel who are specifically authorized to have access to the Systems of the other Party gain such access, and
each Party shall use commercially reasonable efforts to prevent unauthorized access, use, destruction, alteration or loss of information contained in the Systems, including notifying its respective personnel of the restrictions set forth in this
Agreement and of the Security Regulations. 

  
 11 

 (c) If, at any time, the Availed Party determines that any of its personnel has sought to
circumvent, or has circumvented, the Security Regulations, that any unauthorized Availed Party personnel have accessed the Systems, or that any of its personnel has engaged in activities that may lead to the unauthorized access, use, destruction,
alteration or loss of data, information or software of the other Party, the Availed Party shall promptly terminate any such person’s access to the Systems and promptly notify the other Party. In addition, such other Party shall have the right
to deny personnel of the Availed Party access to its Systems upon notice to the Availed Party in the event that the other Party reasonably believes that such personnel have engaged in any of the activities described in this
Section 8.2(c) or otherwise pose a security concern. The Availed Party shall use commercially reasonable efforts to cooperate with the other Party in investigating any apparent unauthorized access to such other Party’s Systems.

 ARTICLE IX 
 NO PARTNERSHIP OR AGENCY RELATIONSHIP 
 9.1 No Partnership or Agency
Relationship; Independent Contractor. Nothing in this Agreement is intended or shall be deemed to constitute a partnership, agency, franchise or joint venture relationship among the Parties or any of their Affiliates. Neither Party shall
have power to control the activities and operations of the other Party or its Affiliates, nor to bind or commit the other Party or its Affiliates. MPLS shall at all time be acting as an independent contractor under this Agreement. 

ARTICLE X 

TERMINATION 
 10.1 General. Subject to the provisions of Section 10.4, this Agreement shall terminate, and the obligation of MPLS to provide Services shall cease, on the earliest to occur of
(a) the date on which the provision of all Services has been terminated by the Parties pursuant to Section 10.2, or (b) the date on which the Term of this Agreement has ended pursuant to Section 2.1. 

10.2 Termination. In addition to the termination rights set forth in Section 2.1, and subject to the other
provisions of this Article X, each Party shall have the right to terminate this Agreement effective upon delivery of written notice to the other Party if: (a) the other Party makes an assignment for the benefit of creditors, or becomes
bankrupt or insolvent, or is petitioned into bankruptcy, or takes advantage of any state, federal or foreign bankruptcy or insolvency act, or if a receiver or receiver/manager is appointed for all or any substantial part of its property and business
and such receiver or receiver/manager remains undischarged for a period of 30 days; (b) the other Party materially defaults in the performance of any of its covenants or obligations contained in this Agreement and such default is not remedied
to the nondefaulting Party’s reasonable satisfaction within 10 days with respect to a default of any payment obligation or 45 days with respect to the default of any other obligation contained in this Agreement, after receipt of written notice
by the defaulting Party informing such Party of such default, or if such default is not capable of being cured within 45 days, if the defaulting Party has not promptly begun to cure the default within such 45-day period and thereafter proceeded with
all diligence to cure the same. 

  
 12 

 10.3 Procedures on Termination. Following termination of this Agreement each
Party will cooperate with the other as reasonably necessary to avoid disruption of the ordinary course of the other Party’s business. Termination shall not affect any right to payment for Services provided prior to termination. 

10.4 Effect of Termination. Upon termination of this Agreement, all rights and obligations of the Parties hereunder shall
cease, provided that such termination shall not effect or excuse a Party’s breach of this Agreement prior to termination, and provided further that Article V (with respect to Fees and Taxes and Third Party costs and
expenses incurred or attributable to periods prior to termination), Sections 6.1, 6.2, 6.4, 6.5 and 10.3, this Section 10.4 and Articles I, VII, VIII, XI and XII
shall, to the fullest extent permitted by applicable law, survive any termination of this Agreement. 
 ARTICLE XI

 INDEMNIFICATION 
 11.1 Indemnification by MPL. MPL shall, to the fullest extent permitted by applicable law, indemnify, defend and hold harmless each of the MPLS Indemnified Parties and the GP Indemnified
Parties for any Losses incurred by them in connection with or arising out of: (a) any breach of the payment provisions of this Agreement by MPL; and (b) any Third Party claims arising out of the provision of the Services, except to the
extent that such Third Party claims have arisen out of the gross negligence, willful misconduct or bad faith of MPLS or any MPLS Affiliated Entity or their respective directors, managers, officers, or employees. 

11.2 Indemnification by MPLS. MPLS shall, to the fullest extent permitted by applicable law, indemnify, defend and hold
harmless the GP Indemnified Parties and the MPL Indemnified Parties for any Losses incurred by them in connection with or arising out of: (a) any breach of the payment provisions this Agreement by MPLS; (b) MPLS’s or any MPLS
Affiliated Entity’s gross negligence, willful misconduct or bad faith in the performance of this Agreement; and (c) any Third Party claims arising out of the provision of the Services to the extent that such Third Party claims have arisen
our of the gross negligence, willful misconduct or bad faith of MPLS or any MPLS Affiliated Entity or their respective directors, managers, officers, or employees. 
 11.3 Limitations and Liability. Each Party shall have a duty to mitigate the Losses for which it is responsible hereunder. TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT
SHALL ANY PARTY OR ANY OF THEIR RESPECTIVE AFFILIATES BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, CONSEQUENTIAL (INCLUDING LOSS OF REVENUES OR PROFITS, LOSS OF DATA, LOSS OF GOODWILL AND LOSS OF CAPITAL, WHETHER OR NOT SUCH PARTY HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), EXEMPLARY OR PUNITIVE DAMAGES OR THE LIKE (EXCEPT TO THE EXTENT THAT SUCH DAMAGES ARE PAID TO A THIRD PARTY AS A RESULT OF A THIRD PARTY CLAIM) 

  
 13 

 
ARISING UNDER ANY LEGAL OR EQUITABLE THEORY OR ARISING UNDER OR IN CONNECTION WITH THIS AGREEMENT (OR THE PROVISION OF SERVICES HEREUNDER), ALL OF WHICH ARE HEREBY EXCLUDED BY AGREEMENT OF THE
PARTIES REGARDLESS OF WHETHER OR NOT ANY PARTY TO THIS AGREEMENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. 

11.4 Indemnification Is Exclusive Remedy. Except for equitable relief and rights pursuant to Article VIII, to the
fullest extent permitted by applicable law, the indemnification provisions of this Article XI shall be the exclusive remedy for breach of this Agreement. 
 11.5 Risk Allocation. Each Party agrees that the Fees charged under this Agreement reflect the allocation of risk between the Parties, including the disclaimer of warranties in
Section 3.4(a) and the limitations on liability in Section 11.4. Modifying the allocation of risk from what is stated here would affect the Fees charged by MPLS, and in consideration of those Fees, each Party agrees to the
stated allocation of risk. 
 11.6 Indemnification Procedures. 

(a) The Indemnified Party agrees that within a reasonable period of time after it becomes aware of facts giving rise to a
claim for indemnification under this Article XI, it will provide notice thereof in writing to the Indemnifying Party, specifying the nature of and specific basis for such claim to the extent then known by the Indemnified Party. 

(b) The Indemnifying Party shall have the right to control all aspects of the defense of (and any counterclaims with
respect to) any claims brought against the Indemnified Party that are covered by the indemnification under this Article XI, including, without limitation, the selection of counsel, determination of whether to appeal any decision of any court
and the settling of any such claim or any matter or any issues relating thereto; provided, however, that no such settlement for only the payment of money shall be entered into without the consent of the Indemnified Party unless it
includes a full release of the Indemnified Party from such claim; and provided further, that no such settlement containing any form of injunctive or similar relief shall be entered into without the prior written consent of the
Indemnified Party, which consent shall not be unreasonably delayed or withheld. 
 (c) The Indemnified Party
agrees to cooperate in good faith and in a commercially reasonable manner with the Indemnifying Party, with respect to all aspects of the defense of and pursuit of any counterclaims with respect to any claims covered by the indemnification under
this Article XI, including, without limitation, the prompt furnishing to the Indemnifying Party of any correspondence or other notice relating thereto that the Indemnified Party may receive, permitting the name of the Indemnified Party to be
utilized in connection with such defense and counterclaims, the making available to the Indemnifying Party of any files, records or other information of the Indemnified Party that the Indemnifying Party considers relevant to such defense and
counterclaims, the making available to the Indemnifying Party of any employees of the Indemnified Party and the granting to the Indemnifying Party of reasonable access rights to 

  
 14 

 
the properties and facilities of the Indemnified Party; provided, however, that in connection therewith the Indemnifying Party agrees to use reasonable efforts to minimize the
impact thereof on the operations of the Indemnified Party and further agrees to maintain the confidentiality of all files, records, and other information furnished by the Indemnified Party pursuant to this Section 11.6. The obligation of
the Indemnified Party to cooperate with the Indemnifying Party as set forth in the immediately preceding sentence shall not be construed as imposing upon the Indemnified Party an obligation to hire and pay for counsel in connection with the defense
of and pursuit of any counterclaims with respect to any claims covered by the indemnification set forth in this Article XI; provided, however, that the Indemnified Party may, at its own option, cost and expense, hire and
pay for counsel in connection with any such defense and counterclaims. The Indemnifying Party agrees to keep any such counsel hired by the Indemnified Party informed as to the status of any such defense, but the Indemnifying Party shall have the
right to retain sole control over such defense and counterclaims. 
 (d) In determining the amount of any loss, cost, damage or
expense for which the Indemnified Party is entitled to indemnification under this Agreement, the gross amount of the indemnification will be reduced by (i) any insurance proceeds realized by the Indemnified Party, and such correlative insurance
benefit shall be net of any incremental insurance premium that becomes due and payable by the Indemnified Party as a result of such claim and (ii) all amounts recovered by the Indemnified Party under contractual indemnities from Third Parties.

 (e) Notwithstanding anything to the contrary hereunder, no cause of action, dispute or claim for indemnification may be
asserted against any Party or submitted to arbitration or legal proceedings which accrued more than two years after the later of (i) the occurrence of the act or event giving rise to the underlying cause of action, dispute or claim and
(ii) the date on which such act or event was, or should have been, in the exercise of reasonable due diligence, discovered by the Party asserting the cause of action, dispute or claim. 

ARTICLE XII 

MISCELLANEOUS 
 12.1 Entire Agreement. This Agreement, including the Annexes hereto, constitutes the entire agreement between the Parties with respect to the subject matter of this Agreement, and supersedes
all prior agreements, negotiations, discussions, understandings and commitments, written or oral, between the Parties with respect to such subject matter. 
 12.2 Choice of Law; Mediation; Submission to Jurisdiction. 
 (a) This
Agreement shall be governed by and construed in accordance with the laws of the State of Delaware, without regard to principles of conflict of laws. The Parties hereby declare that it is their intention that this Agreement shall be regarded as made
under the laws of the State of Delaware and that the laws of said State shall be applied in interpreting its provisions in all cases where legal interpretation shall be required. Each of the Parties agrees (a) that this Agreement involves at
least $100,000.00, and (b) that this Agreement has been entered into by the Parties in express reliance upon 6 Del. C. § 2708. Each of the Parties hereby irrevocably and unconditionally agrees (i) to be subject to the exclusive
jurisdiction of the courts of the State of 

  
 15 

 
Delaware and of the federal courts sitting in the State of Delaware, and (ii) (A) to the extent such Party is not otherwise subject to service of process in the State of Delaware, to
appoint and maintain an agent in the State of Delaware as such Party’s agent for acceptance of legal process, and (B) that, to the fullest extent permitted by applicable law, service of process may also be made on such Party by prepaid
certified mail with a proof of mailing receipt validated by the United States Postal Service constituting evidence of valid service, and that service made pursuant to (b) (A) or (B) above shall, to the fullest extent permitted by
applicable law, have the same legal force and effect as if served upon such Party personally within the State of Delaware. The foregoing consents to jurisdiction and service of process shall not constitute general consents to service of process in
the State of Delaware for any purpose except as provided herein and shall not be deemed to confer rights on any person other than the Parties. 
 (b) If the Parties cannot resolve any dispute or claim arising under this Agreement, then no earlier than 10 days nor more than 60 days following written notice to the other Parties, any Party may
initiate mandatory, non-binding mediation hereunder by giving a notice of mediation (a “Mediation Notice”) to the other Parties. In connection with any mediation pursuant to this Section 12.2, the mediator shall be
jointly appointed by the Parties and the mediation shall be conducted in Findlay, Ohio unless otherwise agreed by the Parties. All costs and expenses of the mediator appointed pursuant to this section shall be shared equally by the Parties. The
then-current Model ADR Procedures for Mediation of Business Disputes of the Center for Public Resources, Inc., either as written or as modified by mutual agreement of the Parties, shall govern any mediation pursuant to this section. In the
mediation, each Party shall be represented by one or more senior representatives who shall have authority to resolve any disputes. If a dispute has not been resolved within 30 days after the receipt of the Mediation Notice by a Party, then any Party
may refer the resolution of the dispute to litigation. 
 12.3 Amendment. This Agreement may only be amended,
modified or supplemented by a written instrument signed by an Authorized Representative of each of MPLS, GP and MPL. 
 12.4
Waiver. Any term or provision of this Agreement may be waived, or the time for its performance may be extended, by the Party or Parties entitled to the benefit thereof. Any such waiver shall be validly and sufficiently given for the
purposes of this Agreement if, as to any Party, it is in writing signed by an authorized representative of such Party. The failure of any Party to enforce at any time any provision of this Agreement shall not be construed to be a waiver of such
provision, or in any way to affect the validity of this Agreement or any part hereof or the right of any Party thereafter to enforce each and every such provision. No waiver of any breach of this Agreement shall be held to constitute a waiver of any
other or subsequent breach. 
 12.5 Partial Invalidity. Wherever possible, each provision hereof shall be
interpreted in such a manner as to be effective and valid under applicable law, but in case any one or more of the provisions contained herein shall, for any reason, be held to be invalid, illegal or unenforceable in any respect, such provision or
provisions shall be ineffective to the extent, but only to the extent, of such invalidity, illegality or unenforceability without invalidating the remainder of such provision or provisions or any other provisions hereof, unless such a construction
would be unreasonable. 

  
 16 

 12.6 Successors and Assigns. This Agreement shall be binding upon and inure to
the benefit of the Parties and their successors and permitted assigns; provided, however, that the rights and obligations of any Party under this Agreement shall not be assignable by such Party without the prior written consent of the
other Parties. The successors and permitted assigns hereunder shall include any permitted assignee as well as the successors in interest to such permitted assignee (whether by merger, liquidation (including successive mergers or liquidations) or
otherwise). 
 12.7 Third Party Beneficiaries. Except to the extent otherwise provided in Article XI with
respect to the rights of the MPLS Indemnified Parties, the GP Indemnified Parties and the MPL Indemnified Parties, the provisions of this Agreement are solely for the benefit of the Parties and their respective successors and permitted assigns and
shall not confer upon any Third Party any remedy, claim, liability, reimbursement or other right. 
 12.8 Notices.
All notices, requests and other communications required or permitted hereunder shall be in writing and shall be deemed duly given or delivered (i) when delivered personally, (ii) if transmitted by facsimile when confirmation of
transmission is received or by email when receipt of such email is acknowledged by return email, (iii) if sent by registered or certified mail, postage prepaid, return receipt requested, on the third business day after mailing or (iv) if
sent by private courier when received; and shall be addressed as follows: 
  

	if to	Marathon Petroleum Logistics Services LLC 

	  	539 South Main St. 

	  	Findlay, OH 45840 

	  	Attention: President 

	  	Email address: gpshaffner@marathonpetroleum.com 

  

	if to	MPLX GP LLC 

	  	200 East Hardin St. 

	  	Findlay, OH 45840 

	  	Attention: President 

	  	Email address: glpeiffer@marathonpetroleum.com 

  

	if to	Marathon Pipe Line LLC 

	  	539 South Main St. 

	  	Findlay, OH 45840 

	  	Attention: President 

	  	Email address: copierson@marathonpetorleum.com 

or, to such other address as such Party may indicate by a notice delivered in accordance with this Section 12.8. 

  
 17 

 IN WITNESS WHEREOF, the Parties have caused this Agreement to be signed by their authorized
representatives as of the date first above written. 
  

			
	Marathon Petroleum Logistics Services LLC
		
	By:	 	/s/ G. P. Shaffner
		 	G. P. Shaffner, President
	
	MPLX GP LLC
		
	By:	 	/s/ G. L. Peiffer
		 	G. L. Peiffer, President
	
	Marathon Pipe Line LLC
		
	By:	 	/s/ C. O. Pierson
		 	C. O. Pierson, President

  
 18 

 Annex A 
 AUTHORIZED REPRESENTATIVES 
 As to 
 Marathon Petroleum Logistics Services LLC 
 R. P. Nichols 

G. P. Shaffner 
 MPLX GP LLC

 D. C. Templin 
 G. L. Peiffer 
 Marathon Pipe Line LLC 

C. O. Pierson 

S. M. Lyon 

  
 A-1

 Annex B 
 SERVICES AND FEES 
 The Fees for the Services will reflect the employee based costs
incurred by MPLS to provide such Services plus an additional monthly cost. They will be calculated and paid in the following manner: As part of the monthly invoice, MPLS will show the employee salary and wage costs (including accruals) incurred for
such month. The monthly invoice will be the sum of (a) the amount in the previous sentence, plus (b) employer payroll taxes for such month, plus (c) 1/12 of the estimated total benefits cost for the applicable calendar year, plus
(d) the bonus accrual, including burden, for MPLS employees for such month, plus (e) the MPC stock-based compensation expense attributed to MPLS for such month, plus (f) $125,000. 

At the end of each calendar quarter, MPLS will compare the latest projection of benefit costs to be charged for the year to the estimated total year cost
charged under (b) above. The net value of this “true-up” (whether positive or negative) of these two amounts will be an adjustment to the remaining monthly invoices for the calendar year. At the end of each calendar quarter, MPLS will
calculate a “true-up” of the total benefits cost charged for the year under (b) above compared to the actual cost of such benefits. The net value of such “true-up” (whether positive or negative) will be an adjustment to the
December invoice to MPL. 
 For the month of the bonus payment (if any) to the MPLS employees, MPLS will calculate a “true-up” of the
total bonus accrual charged for the year under (c) above compared to the actual cost of such bonus, excluding burden. The net value of such “true-up” (whether positive or negative) will be an adjustment to the next monthly invoice to
MPL. 
 For the avoidance of doubt, the Parties agree that the Fees for the remainder of calendar month of the Effective Date will be calculated
in the manner above and will be a pro-rata portion of such amounts based on the number of days remaining in such month from the Effective Date. 

The Services will include the following, as required or requested by MPL: 
 1. Tariff administration: Making all tariff filings; monitoring and updating all tariff schedules, including joint tariffs; monitoring and advising on FERC and other regulatory impacts on tariffs and
tariff procedures; advising management and customers on tariffs. 
 2. Health, Environment, Safety & Security: Make all regulatory
contacts, monitor and develop and lead all safety and security programs. Develop and present all safety and security projects. 
 3. Operations:
Run and maintain the daily field operations of the pipeline systems and stations. Schedule each pipeline system and work closely with the shippers. Produce pipeline tickets and bill out tariff changes to shippers monthly. Monitor measurement on all
pipeline systems. Direct the pipeline integrity, tank integrity and corrosion programs. Direct the pipeline maintenance and reliability programs. Work with Marathon Petroleum Company LP’s engineering group to develop and monitor capital and
expense projects. 

  
 B-1

 4. Right of way & easement administration: Work with the landowners along the right of way on
easements and clearing projects. Partner with each state “811” program in which MPL operates. Direct construction and maintenance crews. 
 5. Pipeline control & SCADA system: Remotely operate the pipeline systems from the Operations Center in Findlay, Ohio and back-up Center in Bluffton, Ohio using the SCADA system and other
computer systems. 
 6. Emergency response: Ensure that emergency response plans are in place for each pipeline system and ensure that employees
are trained and ready to response to an incident if needed. 
 7. Training: Train all new hourly field employees at the training center. Provide
continuous training for all field employees at the center. Ensure that all technicians who need to be OQ qualified meet PHMSA guidelines. 
 8.
Finance & administration: Pay all monthly bills, provide payroll services and monitor MPL’s usage of company vehicles. Close the financial books on a monthly basis and provide assistance to Marathon Petroleum Corporation financial
reporting group on external SEC filings. Provide cost accounting and budgeting services for all of the MPL field regions and Findlay process departments. Prepare and file all FERC Form 6 reports for each company that MPL operates. Monitor and update
all fixed asset records for all companies MPL operates. 
 9. Human resources: Work with human resources to assist in understanding and
following applicable policies. Assist in hiring services for the hourly field technician work force when needed. 
 10. Business Operations and
Planning: Assist with strategic planning for MPL. Advise regarding resource allocation for MPL. Monitor the MPL capital and expense budget. Work with finance and administration, and other Marathon Petroleum Company LP departments on the preparation
and analysis of monthly, quarterly and annual financial and cash flow forecasts. Consulting and advisor services not specified elsewhere. 

  
 B-2

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