Document:

EX-10.3

 Exhibit 10.3 
 MARATHON PETROLEUM CORPORATION 
 NONQUALIFIED STOCK OPTION AWARD AGREEMENT

 [GRANT DATE] 
 OFFICER 
 Pursuant to this Award Agreement, MARATHON PETROLEUM CORPORATION
(the “Corporation”) hereby grants to [NAME] (the “Optionee”), an employee of the Corporation or a Subsidiary, on [DATE] (the “Grant Date”), a right (the “Option”) to purchase from the Corporation
[NUMBER] shares of Common Stock of the Corporation at a grant price of $[PRICE] per share (the “Grant Price”), pursuant to the Marathon Petroleum Corporation 2012 Incentive Compensation Plan (the “Plan”), with such
number of shares and such price per share being subject to adjustment as provided in the Plan, and further subject to the following terms and conditions: 
 1. Relationship to the Plan. This Option is subject to all of the terms, conditions and provisions of the Plan and administrative interpretations thereunder, if any, that have been adopted by the
Committee. Except as otherwise defined in this Award Agreement, capitalized terms shall have the same meanings given to them under the Plan. To the extent that any provision of this Award Agreement conflicts with the express terms of the Plan, the
terms of the Plan shall control and, if necessary, the applicable provisions of this Award Agreement shall be hereby deemed amended so as to carry out the purpose and intent of the Plan. References to the Optionee also include the heirs or other
legal representatives of the Optionee. 
 2. Schedule for Exercisability of Options. 

(a) This Option shall become exercisable in three cumulative annual installments, as follows: 

(i) one-third of the Option Shares shall become exercisable on the first anniversary of the Grant Date; 

(ii) an additional one-third of the Option Shares shall become exercisable on the second anniversary of the Grant Date;
and 
 (iii) the remaining one-third of the Option Shares shall become exercisable on the third anniversary of
the Grant Date; 
 provided, however, that the Optionee must be in continuous Employment from the Grant Date through the date of exercisability
of each installment in order for the Option to become exercisable with respect to additional shares of Common Stock on such date. If the Employment of the Optionee is terminated for any reason other than death or Retirement, any Option Shares that
are not exercisable as of the date of such termination of Employment shall be forfeited to the Corporation. 
 (b) This Option
shall become fully exercisable, irrespective of the limitations set forth in subparagraph (a) above, upon: 

(i) termination of the Optionee’s Employment due to death; 

  
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 (ii) termination of the Optionee’s Employment due to Retirement; or

 (iii) a Participant’s Qualified Termination as defined under the Marathon Petroleum Corporation Amended
and Restated Executive Change in Control Severance Benefits Plan, provided that as of such Qualified Termination the Optionee had been in continuous Employment since the Grant Date. 

3. Expiration of Option. 
 (a) Expiration of Option Period. The Option Period shall expire on the tenth anniversary of the Grant Date. 
 (b) Termination of Employment Due to Death or Retirement. If Employment of the Optionee is terminated due to death or Retirement, the Option shall expire upon the earlier of (i) five years
following the date of termination of Employment or (ii) expiration of the Option Period. The death of the Optionee following Retirement but prior to the expiration of the Option shall have no effect on the expiration of the Option. 

(c) Termination of Employment by the Corporation for Cause or Due to Resignation. If Employment of the Optionee is terminated by
the Corporation or any of its Subsidiaries for Cause or due to voluntary resignation by the Optionee, the Option shall expire upon the termination of Employment. 
 (d) Termination of Employment by the Corporation Other Than For Cause. If Employment of the Optionee is terminated by the Corporation or any of its affiliates for any reason other than Cause, the
Option shall expire upon the earlier of (i) ninety (90) days following the date of termination of Employment or (ii) expiration of the Option Period. 
 (e) Termination of Employment Following a Qualified Termination. If Employment of the Optionee is terminated in a Qualified Termination, the Option shall remain exercisable throughout the Option
Period. 
 4. Employment with a Competitor. Notwithstanding anything herein to the contrary, in the event the Committee,
the Chief Executive Officer, or an authorized officer determines that the Optionee has accepted or intends to accept employment with a competitor of any business unit of the Corporation, the Committee, the Chief Executive Officer, or the authorized
officer may cancel the Option by written notice to the Optionee. 
 5. Forfeiture or Repayment Resulting from
Forfeiture Event. 
 (a) Forfeiture of Unexercised Option. If a Forfeiture Event (as defined herein) occurs during
the Optionee’s Employment or within two years following Optionee’s termination of Employment, the Committee may, but is not obligated to, cause the Option granted under this Award Agreement to be forfeited with respect to some or all
shares of Common Stock subject to the Option. 
 (b) Repayment of Spread on Exercised Option. If a Forfeiture Event
occurs during the Optionee’s Employment or within two years following Optionee’s termination of Employment, the Committee may, but is not 

  
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obligated to, require the Optionee to pay to the Corporation an amount up to (but not in excess of) the difference between the Grant Price and market price of the Option on the date of exercise
with respect to any shares for which the Option has been exercised (the “Forfeited Spread Amount”). Any Forfeited Spread Amount shall be paid by the Participant within sixty (60) days of receipt from the Corporation of written notice
requiring payment of such Forfeited Spread Amount. 
 (c) Application of Forfeiture Provisions. This Paragraph 5 shall
apply notwithstanding any provision of this Award Agreement to the contrary and is meant to provide the Corporation with rights in addition to any other remedy which may exist in law or in equity. This Paragraph 5 shall not apply to the Optionee
following the effective time of a Change in Control. 
 (d) Notwithstanding the foregoing or any other provision of this Award
Agreement to the contrary, the Participant agrees that the Corporation may also require that the Participant repay to the Corporation any compensation paid to the Participant under this Award Agreement, as is required by the provisions of the
Dodd-Frank Act and the regulations thereunder or any other “clawback” provisions as required by law or by the applicable listing standards of the exchange on which the Corporation’s common stock is listed for trading. 

6. Exercise of Option. Subject to the limitations set forth herein and in the Plan, this Option may be exercised in whole or in
part by providing notice to the Committee or its designated representative of the number of Option Shares to be exercised. Such notice shall be accompanied by payment of the Grant Price of such Option Shares in cash or, at the election of the
Optionee, in shares of Common Stock or any combination thereof. For purposes of determining the amount, if any, of the purchase price satisfied by payment in Common Stock, such Common Stock shall be valued at its Fair Market Value on the date of
exercise. Upon receipt of the purchase price, the Corporation or its designated representative shall issue or cause to be issued to the Optionee a number of shares of Common Stock equal to the number of Option Shares then exercised. 

7. Taxes. The Corporation or its designated representative shall have the right to withhold applicable taxes from the shares of
Common Stock otherwise payable to the Optionee upon exercise of the Option or from compensation otherwise payable to the Optionee at the time of exercise pursuant to the applicable provisions of the Plan. 

8. Shareholder Rights. The Optionee shall have no rights of a shareholder with respect to the Option Shares unless and until such
time as the Option has been exercised and shares of Common Stock have been issued to the Optionee in conjunction with the exercise of the Option. 
 9. Nonassignability. During the Optionee’s lifetime, the Option may be exercised only by the Optionee or by the Optionee’s guardian or legal representative. Upon the Optionee’s
death, the Option shall be transferred to the Optionee’s estate. Otherwise, the Optionee may not sell, transfer, assign, pledge or otherwise encumber any portion of the Option, and any attempt to sell, transfer, assign, pledge or encumber any
portion of the Option shall have no effect. 
 10. No Employment Guaranteed. Nothing in this Award Agreement shall give
the Optionee any rights to (or impose any obligations for) continued Employment by the Corporation or any affiliate thereof or successor thereto, nor shall it give such entities any rights (or impose any obligations) with respect to continued
performance of duties by the Optionee. 

  
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 11. Modification of Agreement. Any modification of this Award Agreement shall be
binding only if evidenced in writing and signed by an authorized representative of the Corporation, provided that no modification may, without the consent of the Optionee, adversely affect the rights of the Optionee hereunder. 

12. Definitions. For purposes of this Award Agreement: 

“Cause” means termination from Employment by the Corporation or its Subsidiaries due to unacceptable
performance, gross misconduct, gross negligence, material dishonesty, material acts detrimental or destructive to the Corporation or its Subsidiaries, employees or property, or any material violation of the policies of the Corporation or its
Subsidiaries. 
 “Employment” means employment with the Corporation or any of its affiliates.
For purposes of this Option, Employment shall also include any period of time during which the Optionee is on Disability status. The length of any period of Employment shall be determined by the Corporation or the Subsidiary that either
(i) employs the Optionee or (ii) employed the Optionee immediately prior to the Optionee’s termination of Employment. 
 “Forfeiture Event” means the occurrence of at least one of the following (a) the Corporation is required, pursuant to a determination made by the Securities and Exchange Commission
or by the Audit Committee of the Board, to prepare a material accounting restatement due to the noncompliance of the Corporation with any financial reporting requirement under applicable securities laws as a result of misconduct, and the Committee
determines that (1) the Optionee knowingly engaged in the misconduct, (2) the Optionee was grossly negligent with respect to such misconduct or (3) the Optionee knowingly or grossly negligently failed to prevent the misconduct or
(b) the Committee concludes that the Optionee engaged in fraud, embezzlement or other similar misconduct materially detrimental to the Corporation. 
 “Option Period” means the period commencing upon the Optionee’s receipt of this Award Agreement and ending on the date on which the Option expires pursuant to Paragraph 3(a).

 “Option Shares” means the shares of Common Stock covered by this Option. 

“Qualified Termination” for purposes of this Award Agreement shall have the same definition as under the
Marathon Petroleum Corporation Amended and Restated Executive Change in Control Severance Benefits Plan, as in effect on the Grant Date, and such definition and associated terms are hereby incorporated into this Award Agreement by reference.

 “Retirement” means (a) for an Employee with ten or more years of Employment, termination
on or after the Employee’s 50th birthday, or (b) termination on or after the Employee’s 65th birthday. 

  
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	Marathon Petroleum Corporation
		
	By	 	  

		 	Authorized Officer

  
 5EX-10.4

 Exhibit 10.4 
 MPLX MPC OFFICER PHU 
 MPLX LP 

2012 INCENTIVE COMPENSATION PLAN 
 PHANTOM UNIT AWARD AGREEMENT 
 MARATHON PETROLEUM CORPORATION OFFICER

 Pursuant to this Award Agreement and the MPLX LP 2012 Incentive Compensation Plan (the “Plan”), MPLX GP LLC, a
Delaware limited liability company (the “Company”), the general partner of MPLX LP, a Delaware limited partnership (the “Partnership”) hereby grants to [NAME] (the “Participant”), an officer of Marathon Petroleum
Corporation, the parent corporation of the Company (“MPC”) for benefits conferred on the Company and the Partnership for their service as an officer of MPC, on [DATE] (the “Grant Date”), [NUMBER] phantom partnership
units (“Phantom Units”) representing the right to receive a Common Unit of the Partnership. The number of Phantom Units awarded is subject to adjustment as provided in the Plan, and the Phantom Units hereby granted are also subject to the
following terms and conditions: 
 1. Relationship to the Plan. This grant of Phantom Units is subject to all of the
terms, conditions and provisions of the Plan and administrative interpretations thereunder, if any, that have been adopted by the Committee. Except as defined in this Award Agreement, capitalized terms shall have the same meanings given to them
under the Plan. To the extent that any provision of this Award Agreement conflicts with the express terms of the Plan, the terms of the Plan shall control and, if necessary, the applicable provisions of this Award Agreement shall be hereby deemed
amended so as to carry out the purpose and intent of the Plan. 
 2. Vesting and Forfeiture of Phantom Units. 

(a) The Phantom Units shall vest in three cumulative annual installments, as follows: 

(i) one-third of the Phantom Units shall vest on the first anniversary of the Grant Date; 

(ii) an additional one-third of the Phantom Units shall vest on the second anniversary of the Grant Date; and 

(iii) all remaining Phantom Units shall vest on the third anniversary of the Grant Date; 

provided, however, that the Participant must be in continuous Employment from the Grant Date through the vesting date in order for the Phantom Units to
vest. If the Employment of the Participant is terminated for any reason (including non-Mandatory Retirement) other than death or Mandatory Retirement, any Phantom Units that have not vested as of the date of such termination of Employment shall be
forfeited to the Company. 
 (b) The Phantom Units shall immediately vest in full, irrespective of the limitations set forth in
subparagraph (a) above, upon: 
 (i) termination of the Participant’s Employment due to death; 

  
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 MPLX MPC OFFICER PHU 

 

 (ii) termination of the Participant’s Employment due to Mandatory Retirement; or

 (iii) a Participant’s Qualified Termination as defined under the Marathon Petroleum Corporation Amended and Restated
Executive Change in Control Severance Benefits Plan, provided that as of such Qualified Termination the Participant has been in continuous Employment since the Grant Date. 
 3. Dividends and Cash Distributions. During the period of time between the Grant Date and the date the Phantom Units are settled, for any dividends and/or cash distributions from the Partnership on
outstanding Common Units of the Partnership, the Participant shall be credited with the equivalent of all of the dividends and/or cash distributions that would be payable with respect to the Common Unit of the Partnership represented by each Phantom
Unit, including any fractional Phantom Units, then credited to the Participant and the amount related to such credited dividends and/or cash distributions shall be accrued as a credit to the Participant’s account on the date such dividend
and/or cash distribution is made. Any additional cash or Phantom Units granted pursuant to this Paragraph 3 shall be subject to the same terms and conditions applicable to the Phantom Units to which these dividend and/or cash distributions relate,
including, without limitation, the restrictions on transfer, forfeiture, settlement and distribution provisions contained in this Award Agreement or the Plan. 

4. Settlement and Issuance of Common Units. Subject to the terms of the Plan, all vested amounts payable to
the Participant in respect of the Phantom Units, including the issuance of Common Units of the Partnership pursuant to this Paragraph 4, shall be settled in Common Units and for cash accruals credited under Paragraph 3 above, in cash, as of the
earlier of sixty (60) days following the vesting date or as soon as reasonably practicable following the date on which such Phantom Units vest, but, in no event, later than March 15th of the year following the year in which the Phantom Units vest. During the period of time between the Grant Date and
the date the Phantom Units settle, the Phantom Units will be evidenced by a credit to a bookkeeping account evidencing the unfunded and unsecured right of the Participant to receive Common Units, subject to the terms and conditions applicable to the
Phantom Units. Following vesting and upon the settlement date as described above, the Participants shall be entitled to receive a number of Common Units of the Partnership equal to the total of the number of Phantom Units granted and any additional
Phantom Units credited pursuant to Paragraph 3 above, with any fractional Phantom Units remaining settled in cash. Such Common Units shall be issued and registered in the name of the Participant. The Participant shall not have the right or be
entitled to exercise any voting rights, receive cash distributions or dividends or have or be entitled to any rights as a Partnership unitholder in respect of the Phantom Units until such time as the Phantom Units have vested and been settled and
corresponding Common Units of the Partnership have been issued. 
 5. Taxes. Pursuant to the applicable provisions of the
Plan, MPC as the employer of Participant, shall have the right to withhold applicable taxes from the Common Units of the Partnership otherwise deliverable to the Participant due to the vesting of Phantom Units pursuant to this Award Agreement, or
from other compensation payable to the Participant, at the time of the vesting and delivery of any Common Units of the Partnership at settlement. 
 6. Nonassignability. Upon the Participant’s death, the Phantom Units credited to the Participant under this Award Agreement shall be transferred to the Participant’s estate and upon such
transfer settled in 

  
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 MPLX MPC OFFICER PHU 

 

 
Common Units of the Partnership. Otherwise, the Participant may not sell, transfer, assign, pledge or otherwise encumber any portion of the Phantom Units, and any attempt to sell, transfer,
assign, pledge or encumber any portion of the Phantom Units shall have no effect. 
 7. Nature of the Grant. Under this
Award Agreement, the Participant is subject to the following conditions on the Award: 
 (a) this grant of Phantom Units is
voluntary and occasional and this Award Agreement does not create any contractual or other right to receive future Awards of Phantom Units, or benefits in lieu of Phantom Units even if Phantom Units have been awarded repeatedly in the past; and

 (b) Participant is not an employee of the Company or the Partnership, and this Award of Phantom Units is granted in connection
with service as an officer of MPC to the benefit of the Company and the Partnership. 
 8. No Employment Guaranteed.
Nothing in this Award Agreement shall give the Participant any rights to (or impose any obligations for) continued Employment by with MPC or any Subsidiary, affiliate or successor, nor shall it give such entities any rights (or impose any
obligations) with respect to continued performance of duties by the Participant. 
 9. Modification of Agreement. Any
modification of this Award Agreement shall be binding only if evidenced by resolution of the Board of the Company, provided that no modification may, without the consent of the Participant, adversely affect the rights of the Participant hereunder.

 10. Officer Holding Requirement. Participant agrees that any Common Units of the Partnership received by the
Participant in settlement of this Award shall be subject an additional holding period of one year from the date on which the Award is settled, during which holding period such Common Units (net of any Common Units of the Partnership used to satisfy
the applicable tax withholding requirements) may not be sold or transferred by the Participant. This holding requirement shall cease to apply upon the death, retirement or other separation from service of the Participant during the holding period.

 11. This Award is intended to comply with the requirements for the “short term deferral” exception to the
application of Section 409A of the Code, and shall be interpreted and administered to meet the requirements to be considered a short term deferral and to be exempt from compliance with Section 409A. Notwithstanding the foregoing, if the
Participant is a “specified employee” as determined by the Company in accordance with its established policy, any settlement of Awards in this Award Agreement which would be a payment of deferred compensation within the meaning of
Section 409A of the Code with respect to the Participant as a result of the Participant’s “separation from service” as defined under Section 409A of the Code (other than as a result of death) and which would otherwise be
paid within six months of the Participant’s separation from service shall be payable on the date that is one day after the earlier of (i) the date that is six months after the Employee’s separation from service or (ii) the date
that otherwise complies with the requirements of Section 409A of the Code. In addition, notwithstanding any provision of the Plan or this Award Agreement to the contrary, any settlement of this Award which would be a payment of deferred
compensation within the meaning of Section 409A of the Code with respect to the Participant and is a settlement as a result of the Participant’s separation from service in connection with a

  
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 MPLX MPC OFFICER PHU 

 

 
Change in Control, the term “Change in Control” under the Plan shall mean a change in ownership or change in effective control for purposes of Section 409A of the Code. The payment
of Award amounts under this Award Agreement described herein is hereby designated as a “separate payment” for purposes of Section 409A of the Code. 
 12. Notwithstanding the any other provision of this Award Agreement to the contrary, the Participant agrees that the Company may also require that the Participant repay to the Company any amounts
paid to the Participant under this Award Agreement, as is required by the provisions of the Dodd-Frank Act and the regulations thereunder or any other “clawback” provisions as required by law or by the applicable listing standards of the
exchange on which the Common Units of the Partnership are listed for trading. 
 13. Definitions. For purposes of this
Award Agreement: 
 “Employment” means employment with the Company, or any of its Subsidiaries
or affiliates, including but not limited to MPC. For purposes of this Award Agreement, Employment shall also include any period of time during which the Participant is on Disability status. The length of any period of Employment shall be determined
by the MPC or the Subsidiary or affiliate that either (i) employs the Participant or (ii) employed the Participant immediately prior to the Participant’s termination of Employment. 

“Mandatory Retirement” means termination of Employment as a result of MPC’s policy, if any, in
effect at the time of the Grant Date, requiring the mandatory retirement of officers and/or other employees upon reaching a certain age or milestone. 
 “Qualified Termination” for purposes of this Award Agreement shall have the same definition as under the Marathon Petroleum Corporation Amended and Restated Executive Change in Control
Severance Benefits Plan (the “CIC Plan”), and such definition and associated terms are hereby incorporated into this Award Agreement by reference. Notwithstanding the definition of a “Change in Control” under the terms of the CIC
Plan, for purposes of this Award Agreement such Change in Control for purposes of determining whether a separation from service is a Qualified Termination shall include a Change in Control of either MPC, as the direct employer of the Participant, or
a Change in Control of the Partnership, as the issuer of the Award. 
  

			
	MPLX GP LLC
		
	By	 	  

		 	Authorized Officer

  
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