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MPC vs SUN stock comparison

MARATHON PETROLEUM CORPORATION vs SUNOCO LP, two Oil & Gas Refining stocks. A side-by-side on valuation, growth, margins, returns, and what each price is betting.

What is priced in: Marathon Petroleum at 16.7 times earnings is priced for refining crack spreads and heavy buybacks; Sunoco, an MLP with no clean P/E, is priced for its distribution, its 28.5% free-cash figure the pass-through mechanic of a fuel-logistics vehicle. Marathon refines and markets fuel at a 19.8% return on equity; Sunoco moves it through terminals and pipelines at a thin 3.1% net margin. Marathon pays a 1.5% dividend from earnings; Sunoco distributes. Marathon runs 0.09 turns of debt, Sunoco MLP-standard leverage. The pair prices a refiner against a distributor, adjacent links in the downstream chain, one a capital-return story on the crack spread and the other an income vehicle on the fuel toll, each priced on the metric its structure was built to produce.

Comparison updated 2026-07-11.

MPC vs SUN: the numbers

MetricMPCSUN
Price$253.99$66.32
Market cap$74.9B$3.4B
SectorOil & Gas RefiningOil & Gas Refining
StageCyclicalCyclical
Implied growth (priced in)-3.9%+2.7%
P/E16.7
P/B3.20
P/S0.550.11
EV/EBITDA6.12.3
Revenue growth-1.2%+40.5%
Operating margin4.1%8.1%
Net margin3.4%3.1%
Return on equity19.8%
Return on assets5.3%3.2%
Return on invested capital29.0%9907.9%
FCF yield7.6%28.5%
Dividend yield1.5%
Debt / equity0.09
Current ratio1.181.40
Altman Z (solvency)2.971.28
Piotroski F (quality)7 / 97 / 9
Full MPC report → Full SUN report →
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The stronger value is highlighted per metric where one is strictly better on that single number; it is not an overall verdict on either company. For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.