Financial Performance - Total reportable segments' adjusted EBITDA was 2,167millioninQ12025,downfrom3,485 million in Q1 2024 [118]. - Net loss attributable to the company was 74million,or(0.24) per diluted share, for Q1 2025, compared to net income of 937million,or2.58 per diluted share, in Q1 2024 [119]. - Total revenues and other income decreased by 1.36billionto31.85 billion in Q1 2025 compared to Q1 2024 [136]. - Net income attributable to MPC decreased by 1.01billiontoalossof74 million in Q1 2025, primarily due to lower Refining & Marketing margins [137]. - Refining & Marketing segment revenues decreased by 1.52billion,drivenbya0.22 per gallon decrease in average refined product sales prices, despite a 204 mbpd increase in sales volumes [149]. - Refining & Marketing segment adjusted EBITDA decreased by 1.50billionto1.91 per barrel in Q1 2025, down from 8.22perbarrelinQ12024[150].−Netcashprovidedbyoperatingactivitiesdecreasedby1.60 billion in Q1 2025 compared to Q1 2024, primarily due to a decrease in operating results and an unfavorable change in working capital of 685 million [177]. Refining & Marketing Segment - Segment adjusted EBITDA for Refining & Marketing decreased to 489 million in Q1 2025 from 1,986 million in Q1 2024, reflecting a lower refining margin environment [118]. - Refining & Marketing margin per barrel decreased to 13.38 in Q1 2025 from 19.35 in Q1 2024 [147]. - Refining & Marketing margin decreased to 13.38 per barrel in Q1 2025 from 19.35perbarrelinQ12024,withanestimatednetnegativeimpactofapproximately1.7 billion due to lower crack spreads [151]. - Refining operating costs, excluding depreciation and amortization, increased by 7millionprimarilyduetohigherenergycosts,whilecostsdecreasedby0.32 per barrel due to higher throughput [152]. - Refining planned turnaround costs decreased by 193million,or0.91 per barrel, due to the scope and timing of turnaround activity [154]. Capital Expenditures and Investments - Total capital expenditures in Q1 2025 were 644million,upfrom511 million in Q1 2024, with additions to property, plant, and equipment at 663million[182].−MPC′scapitalinvestmentoutlookfor2025isapproximately1.25 billion, excluding capitalized interest and potential acquisitions [204]. - Capital expenditures for MPC, excluding MPLX, were 377millioninQ12025,comparedto299 million in Q1 2024, indicating a 26% increase [206]. - Cash used for common stock repurchases was 1.06billioninQ12025,downfrom2.22 billion in Q1 2024, reflecting a decrease in repurchase activity [185]. - Cash used in acquisitions amounted to 237millioninQ12025,relatedtotheMidstreamsegment[184].MPLXandMidstreamOperations−Thecompanyownedapproximately647millionMPLXcommonunitsvaluedat34.65 billion as of March 31, 2025 [121]. - MPLX declared a quarterly cash distribution of 0.9565percommonunit,withthecompany′sportionamountingtoapproximately619 million [121]. - MPLX acquired gathering businesses from Whiptail Midstream for 237million,enhancingitsstrategicrelationshipwithMPC[114].−MPLXenteredintoanagreementtoacquiretheremaining55715 million, with an additional earnout provision of up to 275millionbasedonEBITDAgrowth[113].−MidstreamsegmentadjustedEBITDAincreasedby131 million, mainly due to increased sales and operating revenues of 286millionfromfeeescalationsandhigherthroughputs[162].LiquidityandFinancialPosition−Theconsolidatedcashandcashequivalentsbalanceincreasedtoapproximately3.81 billion at March 31, 2025, compared to 3.21billionatDecember31,2024[175].−TotalliquidityforMPC,excludingMPLX,was6.38 billion as of March 31, 2025, consisting of 4.999billionavailableunderthebankrevolvingcreditfacilityand1.278 billion in cash and cash equivalents [188]. - MPLX's liquidity totaled 6.03billionatMarch31,2025,including2.534 billion in cash and cash equivalents [197]. - Long-term debt borrowings and repayments provided a net cash source of 3.41billioninQ12025,comparedtoanetcashuseof17 million in Q1 2024 [185]. Regulatory and Market Outlook - The company expects to evaluate the impact of California's SB X1-2 and AB X2-1 regulations on its future operations and results [112]. - The refining margin environment is expected to remain lower in the near term, but long-term global demand growth is anticipated to outpace capacity additions through the end of the decade [109].