Stock

Marathon Petroleum Corporation

MPC

Oil & Gas Refining & Marketing · Energy

Also trades as: 0JYA.L GBP 4.59 (-0.10%)

Price

$457.22

-2.06 (-0.45%)

Market Cap

$128.40B

Winston Score

Winston is curious

Mixed quality — meaningful strengths and weaknesses.

Data as of Oct 25, 2026 · filings through Jun 30, 2026

§How the score breaks down

Quality

Good

17/30

Growth

Good

12/20

Cash Flow

Strong

8/10

Stability

Good

5/10

Valuation

Good

5/10

Ownership

Weak

2/15

Dividends

Mixed

2/5

51 of 100 counted points = Winston Score 51.

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Share count falling — buybacks

−52.2% over 4y

The company has reduced its share count over this period, returning value to shareholders through buybacks.

Diluted shares outstanding: 638.0M (2021) → 305.0M (2025)

§Winston Score History

The full picture

Marathon Petroleum Corporation turns crude oil into everyday products like gasoline, diesel, and jet fuel. It sells these fuels to gas stations, trucking companies, airlines, and other businesses across the United States. Marathon is one of the largest oil refiners in the country and also owns the Speedway-branded fuel network through its MPLX pipeline and logistics business.

Marathon makes money by buying crude oil, refining it, and selling the finished products at a higher price — the difference is called the refining margin. It operates primarily in the United States, with refineries spread across the Midwest, Gulf Coast, and West Coast, giving it broad geographic reach. The company's large refining capacity and extensive pipeline network through its MPLX partnership create real scale advantages over smaller competitors. The main risk is that refining margins are cyclical and can shrink quickly when crude oil prices rise faster than fuel prices, which directly squeezes profits.

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Growth Profile

For growth stock investors

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

+53.8% YoY

YoY Growth Rate

Revenue accelerating

Reported EPS Growth

+346.5% YoY

Quarterly reporting periods ended:

30 Jun 2025: $3.96

30 Jun 2026: $17.68

Reported/statutory EPS, not adjusted or underlying earnings. One-off items can affect this figure. Provider rounding can affect the growth rate.

YoY Growth Rate

Reported EPS increased year over year

R&D Spend

$0/ year

0.0% of revenue

Below sector average (1%)

Research and development spending

Insider Activity

0.3%ownership

→ Flat

Insider ownership roughly steady over the past year

Cash Position

Cash flow positive

$15.0B cash & investments

Quarterly Free Cash Flow

↑ Burn rate improving

Company generates more cash than it spends — no dilution risk from fundraising

Revenue accelerating

Marathon Petroleum Corporation grew revenue 54% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

Each metric is explained in plain language so you know exactly what you're looking at. Start your free trial now.

Quality

Profit per sale

Gross Margin

17.2%

Thin — 17.2% gross margin

Profit after running costs

Operating Margin

14.1%

Healthy — 14.1% operating margin

Return on the money invested

ROCE

22.9%

Exceptional — 22.9% return on capital

ROIC between 15% and 25%. Every dollar invested in the business earns 15 to 25 cents back per year.

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Growth

Sales growth

Sales YoY

+15.3%

Fast-growing sales (+15.3% YoY)

Profit growth

EPS YoY

+329.7%

Earnings growing fast (+329.7% YoY)

Earnings growing 25%+ a year. The compounder zone.

How steady the profit is

EPS Consistency

4/8 quarters

Earnings inconsistent quarter-to-quarter

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Cash Flow

Profit that turns into cash

Cash Conversion

200%

Turns 200% of profit into real cash

Spare cash per sale

FCF Margin

8.4%

Modest free cash flow (8.4%)

FCF margin between 0% and 10%. Some cash from sales, but not a lot.

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Stability

What it owes vs what it owns

Debt / Equity

1.80

Elevated debt (1.80)

Covers its interest

Interest Cover

7.90x

Adequate interest coverage (7.9x)

Interest coverage between 3 and 8. Profits cover interest several times over.

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Valuation

Price vs profit

P/E Ratio (TTM)

15.7x

Fair value — P/E 15.7

P/E in the normal range. Price is roughly $15 for every $1 of yearly profit.

Cheaper or dearer next year

P/E vs Forward

+0.4

GROWING

Earnings roughly flat

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Dividends

Dividend

Dividend Yield

1.02%

Small dividend — 1.02% yield

Modest yield. The bulk of any return needs to come from price appreciation.

Dividend record

Dividend Growth

+9.9%

Dividend growing modestly (9.9% YoY)

Payout Ratio

14%

no trend

Pays out a modest share of profit and keeps the rest to reinvest. Room to keep paying through a weak year.

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