CluenexMarathon Petroleum Corporation MPC
Marathon Petroleum Corporation scores weak on business quality (3.5 of 10). Here is why, in plain words, and what our sealed record shows.
Why it matters
- What Marathon Petroleum Corporation does
Marathon Petroleum refines crude oil into gasoline, diesel, and petrochemicals, selling refined products through wholesale and retail channels. The company is directing capital toward logistics optimization and retail footprint adjustments to protect margins against shifting energy demand.
- What it does best
Marathon converts crude into fuels more efficiently than many peers, posting an operating margin of 9.0% that outpaces PSX at 4.9%. This operational edge stems from a vast, integrated midstream and refining network that is difficult to replicate.
- The main risk
Net debt has climbed to $29.2B, increasing balance-sheet vulnerability if refining crack spreads weaken. This leverage load limits flexibility during prolonged downturns in domestic fuel demand.
Quality, check by check
Scored against its own industry, from company filings.
Operating margin stands at 8.9% with an FCF margin near 8.2%, supported by robust operational output. Profitability fluctuates tightly with refining margins rather than scaling structurally.
Scale and logistics integration lock in wholesale and retail buyers. Its gross margin ranks in the bottom quartile at 11%, leaving a narrow defensive moat against commodity price swings.
Revenue fell 3.8% to $156B, reflecting a downward trend from prior years. Growth is actively fading as commodity pricing and historical volumes contract across its refining segment.
Total debt sits at $32.8B with an interest coverage ratio of 9.3x, leaving debt service manageable. Free cash flow reached $12.8B, but rising net debt suggests the balance sheet is softening.
Insiders
Executives and directors, from SEC Form 4 filings we read ourselves. Open market trades only; grants, option exercises and pre-planned sales left out.
3 sold $3.7M outside pre-planned sales.
Our sealed record on MPC
Verdicts appear here 30 days after we publish them; members see today's. Each one is in the nightly ledger, fingerprinted the night it was made.
The first sealed verdicts appear here on Oct 11, 2026.
Questions
Marathon Petroleum Corporation scores weak on the Cluenex quality check (3.5 of 10), measured against its own industry. Profitability is weak, moat weak, growth slow and financial health fair.
In the last 90 days of SEC Form 4 filings: 3 sold $3.7M outside pre-planned sales.
Nov 3, 2026, before the open.
See MPC today
- Today's verdict on MPC, and why
- Fair value with cautious, base and optimistic cases
- The exact price that would change the verdict
- Which stocks each signal names, the night it fires
Cite this page: Cluenex, “Marathon Petroleum Corporation (MPC)”, https://cluenex.com/stocks/mpc/, data as of Oct 10, 2026.