Common Contracts

MPLX LP 2018 INCENTIVE COMPENSATION PLAN PERFORMANCE UNIT AWARD AGREEMENT MPLX OFFICER (amended effective January 25, 2022)

2018 Incentive Compensation Plan • May 3rd, 2022 • MPLX Lp • Pipe lines (no natural gas)

• Contract Type
  2018 Incentive Compensation Plan
• Filed
  May 3rd, 2022
• Company
  MPLX Lp
• Industry
  Pipe lines (no natural gas)

As evidenced by this Award Agreement and under the MPLX LP 2018 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”) has granted to MICHAEL J. HENNIGAN (the “Participant”), an officer of the Company, on 03/01/2020 (the “Grant Date”), 460,000 performance units (“Performance Units”), conditioned upon the Company’s total unitholder return (or “TUR”) ranking relative to the Peer Group and the DCF Payout Percentages for the Performance Cycle as established by the Board, and as set forth herein. The Performance Units are subject to the following terms and conditions (a) which were provided in the original Award effective March 1, 2020, and (b) the additional terms and conditions in the amendment to this Award as approved by the Committee effective January 25, 2022 (the additional terms and conditions are shown in double-underlined text and shall be deemed

MPLX LP 2018 INCENTIVE COMPENSATION PLAN PERFORMANCE UNIT AWARD AGREEMENT MPLX OFFICER

2018 Incentive Compensation Plan • May 7th, 2020 • MPLX Lp • Pipe lines (no natural gas)

• Contract Type
  2018 Incentive Compensation Plan
• Filed
  May 7th, 2020
• Company
  MPLX Lp
• Industry
  Pipe lines (no natural gas)

As evidenced by this Award Agreement and under the MPLX LP 2018 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”) has granted to [NAME] (the “Participant”), an officer of the Company, on [DATE] (the “Grant Date”), [NUMBER] performance units (“Performance Units”), conditioned upon the Company’s total unitholder return (or “TUR”) ranking relative to the Peer Group and the DCF Payout Percentages for the Performance Cycle as established by the Board, and as set forth herein. The Performance Units are subject to the following terms and conditions: