Marathon Petroleum Corp Dossier - Source-backed chat

Marathon Petroleum Corp

MPCNYSE

SectorEnergy

IndustryOil & Gas Refining & Marketing

Beta (adjusted)0.67

Intrinsic Value $631.97median of 6 methods · middle span $138-$4,304based on filings through 30 Jun 2026

Market Price $420.15Price as of 1 Oct 2026

Significantly undervaluedIntrinsic value is 50% above the market price

−50% · IV below pricenear fair value ±15%IV above price · +50%

marker beyond scale (+50%)

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Market Cap $118B

Enterprise Value $140.9B

Shares Outstanding 288M diluted

Moat Rating Wide

Next Earnings Date3 Nov 2026

Last ex-dividend19 Aug 2026

All prices and values are periodic snapshots, not live quotes. Source dates are shown for reference.

Thesis

Street consensus, scenarios, merits, risks, and invalidation triggers

AI-assisted

Thesis Summary

Marathon Petroleum entered the second half of 2026 with exceptionally strong refining economics: second-quarter R&M margin was $36.33 per barrel, adjusted EBITDA was $8.46 billion and $2.8 billion was returned to shareholders. The positive case is reinforced by completed refinery-yield projects, an expanding MPLX natural-gas and NGL platform, improved renewable-diesel results and substantial liquidity. However, the second-quarter earnings level was driven primarily by unusually strong crack spreads and should not be treated as a stable run rate. Refining cyclicality, outages, operating-cost inflation, regulatory-credit volatility and execution risk on a large midstream project program justify a balanced rating.

This section is the 12-month view: analyst targets and the probability-weighted scenarios built from them. The intrinsic value at the top of this page answers a different question: what the business is worth today.

Street view · analyst 12-month targets18 analysts · as of 18 Aug 2026

Low · most bearish analyst$186.00

Mean target$320.22

High · most bullish analyst$376.00

Street targets sit below today's price; our intrinsic value sits above it. Different horizons, different questions.

Our research · scenarios, merits, risks, and invalidation triggersResearch as of 2 Sep 2026

Scenarios · 12-month scenario targetsAnchored at research date

Bear CaseDownside scenario

$186.0017%

Crack spreads contract sharply, unplanned outages or turnaround slippage reduce throughput, refining operating costs exceed guidance, renewable-diesel credit values weaken, or MPLX projects encounter cost, schedule or regulatory setbacks. These conditions would reduce cash available for repurchases and undermine the unusually strong earnings profile reported in the second quarter.

Base CaseCentral scenario

$320.2256%

Matches the consensus mean

Refining margins normalize below the exceptional second-quarter level while operating execution remains sound. Throughput is broadly consistent with the 3.005 million-barrel-per-day third-quarter outlook, costs remain near the $5.60-per-barrel outlook, and MPLX growth plus its distributions support MPC's dividend, standalone capital program and opportunistic repurchases.

Bull CaseUpside scenario

$376.0027%

Strong product cracks persist, MPC meets or exceeds its 3.005 million-barrel-per-day third-quarter throughput outlook, operating costs remain at or below $5.60 per barrel, completed refinery upgrades add high-value product yield, and MPLX projects and distributions expand as planned. Renewable-diesel profitability remains positive and strong cash generation supports continued capital returns.

Scenarios are anchored to street consensus at the research date, with our probabilities and rationale.

Key Investment Merits

Second-quarter 2026 R&M adjusted EBITDA reached $6.655 billion as R&M margin increased to $36.33 per barrel, demonstrating strong leverage to favorable refining conditions.
MPLX provides a growing midstream earnings and distribution stream, with MPC reporting multiple natural-gas and NGL projects scheduled from 2026 through 2029.
MPC returned more than $2.8 billion to shareholders in the second quarter and retained $6.1 billion of repurchase authorization at June 30, 2026.

Key Investment Risks

Refining earnings remain highly exposed to volatile crack spreads, crude differentials and refined-product demand; management attributed the second-quarter improvement primarily to higher regional crack spreads.
Industrial incidents, unplanned shutdowns, turnaround execution and energy-cost inflation can reduce utilization and increase per-barrel operating costs.
Large refinery and MPLX projects face construction-cost, schedule, permitting and partner-execution risks, while renewable-diesel economics depend partly on volatile regulatory-credit values and government policy.

All scenarios are estimates and subject to change. Past performance is not indicative of future results.

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Explore this dossier

ValuationIntrinsic value, the six-method breakdown, peer medians, and your assumptions sandbox.Financial SnapshotRevenue, profitability, returns, balance sheet, dividends, and the filing-level detail.Qualitative AnalysisBusiness overview, strategic initiatives, and mergers, acquisitions & partnerships.Outlook & Key DatesForward estimates, reporting calendar, and the monitoring framework.