Headlines around a possible U.S. Iran breakthrough at the Strait of Hormuz have whipped oil and travel stocks into a story driven more by mood than facts. Prices have reacted to hopeful comments and sharp denials alike, creating fast moving winners and losers. This article unpacks three stocks that sit in the crossfire, one that could benefit from the current setup and two where optimism may be masking real risks.

Marathon Petroleum (MPC)

Overview: Marathon Petroleum is a large U.S. refiner that turns crude oil and other feedstocks into gasoline, diesel, jet fuel and other products, and sells them through wholesale channels and branded outlets like Marathon and ARCO. It also runs a midstream network of pipelines, storage and logistics assets, plus a smaller renewable diesel business.

Operations: Marathon Petroleum generates most of its revenue from Refining & Marketing at about US$144.6b, with additional sales from Midstream at about US$11.7b and Renewable Diesel at about US$3.4b, almost entirely in the United States at about US$154.4b.

Market Cap: US$83.6b

Investors watching Marathon Petroleum in the Strait of Hormuz story are looking at a refinery-heavy business whose earnings hinge on crack spreads. Optimism about a quick U.S. Iran breakthrough could easily compress those spreads. The company has reported strong recent margins, significant cash generation and sizeable buybacks. However, its heavy exposure to fossil fuels and sizeable debt load mean that any sharp rebound in crude prices or tighter environmental rules could test that position. Management commentary has leaned optimistic on refining fundamentals through 2027. If crude remains cheaper for longer than the market expects or sentiment shifts due to geopolitics, the stock’s current appeal could prove more fragile than it appears at first glance.

Marathon Petroleum’s recent cash returns can easily distract from its fossil fuel exposure and sizeable debt. Before assuming those crack spreads hold, read the 2 warning signs (1 is major!) that could shift this story faster than expected.

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Chevron (CVX)

Overview: Chevron is a large integrated energy company that explores for and produces oil and gas, refines them into fuels and chemicals, and sells these products globally alongside a growing, but still smaller, portfolio of renewable fuels and lower carbon technologies.

Market Cap: US$365.7b

Chevron appears in the Strait of Hormuz story as a global producer whose earnings are closely tied to oil prices at a time when markets are pricing in a smooth diplomatic outcome. Repeated hints of an imminent U.S. Iran deal have already weighed on crude, which would squeeze profitability if optimism proves premature. The company reports strong recent earnings, sizeable free cash flow and a long dividend history. It still leans heavily on hydrocarbons and large upstream projects that carry geopolitical and execution risk. Combined with recent insider selling and a relatively new management team, this can be viewed less as a simple blue chip opportunity and more as a stock where sentiment could shift quickly if oil prices change direction or diplomacy stalls.

Chevron’s story looks comfortable on the surface, with oil diplomacy optimism and a long dividend track record, yet large upstream bets and geopolitical exposure create an uneasy mix. Read the 3 key rewards and 1 important warning sign

Delta Air Lines (DAL)

Overview: Delta Air Lines is a large U.S. airline that carries passengers and cargo across an extensive domestic and international network, supported by its own refinery, aircraft maintenance operations and vacation packages.

Operations: Delta Air Lines generates about US$61.7b from its Airline segment and about US$8.2b from its Refinery segment, offset by about US$1.6b of intersegment eliminations, with most revenue coming from the United States and additional sales across the Atlantic, Latin America and Pacific regions.

Market Cap: US$60.9b

Delta Air Lines sits in a key position in this Strait of Hormuz story because it feels falling oil prices directly in its jet fuel bill while leaning on premium cabins, loyalty revenue and international routes to support margins. Analysts note characteristics such as expectations for earnings growth and a wide gap between the current share price and some estimates of cash flow value, yet the stock also has meaningful leverage, recent insider selling and a young management team. With headlines now pushing fuel costs lower even as some routes are trimmed and new ancillary ideas like the DraftKings partnership emerge, investors are looking at a company where small shifts in fuel, pricing power or demand could matter a lot more than the market is currently pricing in.

Delta Air Lines appears to be a fuel-sensitive story that could be masking something bigger in its premium cabins, loyalty engine and refinery twist. See how the 2 key rewards and 2 important warning signs might flip the usual airline script just when fuel or demand blink

Seeking Alternatives Before The Crowd Moves

Markets can move quickly and breakout ideas are often identified by momentum traders early. Scan fresh stock angles that appear to be under the radar for now and review them promptly.

• Look for companies with strong balance sheets before momentum traders bid them up by scanning a curated list of solid balance sheet and fundamentals (49 results) while the data may still provide an early informational edge.
• Monitor cash flow characteristics by tracking 49 high quality undervalued stocks that combine fundamental metrics with pricing that appears reasonable before they attract wider attention.
• Consider the electrification theme by scanning 8 top copper producer stocks that could be positioned to participate if demand for related materials continues, while many investors may be focused elsewhere.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.