Investor Presentaiton

MPLX 2019 Outlook - Reconciliation Adjusted EBITDA and Distributable Cash Flow from Net Income ($ billion) Net income Depreciation and amortization 2019E 2.2 0.9 Net interest and other financial costs 0.7 Adjustment for equity investment earnings & distributions 0.2 Other 0.0 Adjusted EBITDA 4.0 Adjusted EBITDA attributable to noncontrolling interests (0.1) Adjusted EBITDA attributable to MPLX LP 3.9 Deferred revenue impacts 0.1 Net interest and other financial costs (0.7) Maintenance capital expenditures (0.2) Other 0.0 Distributable cash flow attributable to MPLX LP 3.1 40 57 M MARATHON

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