How to Read Strait of Hormuz Risk: The EIA Data That Shows Oil and LNG Exposure

Direct Answer

Strait of Hormuz risk is easy to overread if the only question is where oil prices go next. The more useful first pass is narrower: how much oil and LNG normally move through the chokepoint, what can bypass it, how much inventory can soften the shock, and how reliable the vessel-tracking data is.

EIA’s May 2026 Short-Term Energy Outlook and Global Energy Security Data give readers a way to separate those layers. The key is not to treat every number as the same kind of evidence. Flow tables, price outlooks, strategic stock estimates, and Automatic Identification System vessel-tracking caveats answer different questions.

If I were turning this into a one-page risk note, the first line would be: Hormuz risk is not just blocked barrels. It is baseline exposure, observed or estimated transit flows, crude bypass capacity, inventory buffer, and data revision risk.

What Changed In The May 2026 EIA Data?

EIA’s Global Energy Security Data is built around maritime chokepoints, not only the Strait of Hormuz. It also covers Malacca, Suez/SUMED, Bab el-Mandeb, the Danish Straits, the Turkish Straits, the Panama Canal, and the Cape of Good Hope. That comparison matters because one chokepoint’s disruption can show up as stress or rerouting somewhere else.

Data point	May 2026 source figure	How to read it
Strait of Hormuz total petroleum flow	EIA 1Q26: 14.6 million b/d	A quarterly estimate combining crude, condensate, and petroleum products.
Strait of Hormuz crude and condensate	EIA 1Q26: 10.7 million b/d	Closest to refinery feedstock exposure.
Strait of Hormuz petroleum products	EIA 1Q26: 3.9 million b/d	Finished fuel flows need their own line item.
Strait of Hormuz LNG flow	EIA 1Q26: 7.3 Bcf/d	Do not add this to barrels; it uses a different unit and market structure.
2025 structural oil exposure	IEA: nearly 20 million b/d	A baseline for normal exposure, not the same as a 1Q26 flow estimate.
Crude export bypass capacity	IEA: 3.5-5.5 million b/d	Useful as a crude-exposure screen, but not a full offset for total petroleum or LNG exposure.

The common mistake is to ask whether the EIA or IEA number is the real one. They are answering different questions. IEA’s 2025 figure describes structural dependence. EIA’s 1Q26 figure is a period-specific chokepoint flow estimate.

Do Not Mix Flow Data With Forecast Assumptions

EIA’s Global Energy Security Data table presents chokepoint flows from 1Q25 through 1Q26. In EIA’s May 2026 table, Strait of Hormuz total petroleum flow falls from 20.7 million b/d in 4Q25 to 14.6 million b/d in 1Q26. LNG flow falls from 10.1 Bcf/d to 7.3 Bcf/d over the same period.

EIA’s Global oil markets section is a different layer. It includes market outlook assumptions and price sensitivity. The May 2026 STEO describes Brent spot prices averaging $117 per barrel in April 2026, $46 above the February average, and discusses how a one-month delay in a gradual Hormuz reopening could lift near-term oil prices by more than $20 per barrel relative to EIA’s forecast.

Those numbers should not be collapsed into one simple narrative. Flow data is about observed or estimated movement. Price data reflects market reaction and EIA’s outlook assumptions. For a procurement, shipping, or risk memo, I would keep the flow table first and put price assumptions in a separate section.

Who Is Exposed On The Oil Side?

IEA says nearly 20 million barrels per day of crude oil and petroleum products passed through the Strait of Hormuz in 2025, equal to about 25% of global seaborne oil trade. About 80% of that oil went to Asia.

There are bypass options, but they are partial. IEA identifies crude export routes in Saudi Arabia and the UAE that do not pass through the Strait of Hormuz and estimates alternative crude export capacity at 3.5-5.5 million b/d. That is material capacity, but it is crude-focused and smaller than total Hormuz oil exposure.

The practical reading should be narrower than a simple subtraction exercise. Use the 3.5-5.5 million b/d estimate as a rough screen for crude barrels that may have an alternative export path, then separately assess crude and condensate, petroleum products, LNG, operating constraints, and sustained throughput. It is not a barrel-for-barrel replacement calculation for total oil products or LNG exposure.

Why LNG Is Less Flexible Than Oil

LNG deserves its own risk line. IEA says about 93% of Qatar’s LNG exports and about 96% of the UAE’s LNG exports pass through the Strait of Hormuz. Together, those exports account for about 19% of global LNG trade.

Oil can sometimes move through alternative pipelines. LNG is less flexible because it depends on liquefaction plants, export terminals, specialized vessels, and receiving terminals. IEA states that Qatar and the UAE have no alternative route to supply natural gas to the global LNG market outside their existing liquefaction facilities. Oman LNG terminals were operating close to full capacity in 2025, and the Dolphin pipeline serves pipeline gas demand in the UAE and Oman rather than replacing global LNG shipments.

That changes the monitoring question. For LNG, the issue is not only vessel passage. It is Qatar and UAE supply exposure, Asia-bound cargo dependence, the mix of long-term contracts and spot procurement, and how much power and industrial demand depends on gas.

Strategic Petroleum Stocks Are A Time Buffer, Not A Route

EIA’s strategic petroleum stock table is useful because it shows how much buffer major economies may have. In EIA’s May 2026 data, 1Q26 strategic petroleum stocks are listed at 1,541 million barrels for China, 413 million barrels for the United States, 263 million barrels for Japan, 132 million barrels for other OECD Europe, 88 million barrels for Saudi Arabia, and 78 million barrels for South Korea.

Those barrels should not be read as identical barrels instantly available to replace chokepoint flows. EIA’s methodology centers on government or state-owned company holdings and generally excludes commercial stocks, floating storage, and underground storage. For China, EIA applies a separate method that treats government-held barrels and some commercial inventory as strategic stock.

In operational terms, strategic petroleum stocks buy time. If a transit shock is short, stock releases may reduce pressure. If the disruption lasts, inventories do not remove the transport bottleneck; they create space for demand adjustment and supply rerouting.

The AIS Caveat Is Not A Footnote

EIA’s methodology note is part of the story. EIA says much ship-tracking data relies on Automatic Identification System signals, which can be turned off or manipulated. It also says AIS data for vessels transiting the Strait of Hormuz became especially unreliable after late February 2026, so 2026 Hormuz flow estimates may be revised frequently.

That means two things for readers. First, the 1Q26 figure of 14.6 million b/d should not be treated as fixed. Second, a later revision does not automatically prove a fresh physical change in the waterway. It may reflect data correction, route identification, or port departure and arrival analysis.

When I read a Hormuz data table, I look for the methodology note before I quote the headline number. In this case, the reliability of the tracking signal is part of the risk assessment.

Operational Checklist

1. Open EIA’s Global Energy Security Data and check the Strait of Hormuz table for total petroleum, crude and condensate, petroleum products, and LNG separately.
2. Compare Hormuz with Malacca, Suez/SUMED, Bab el-Mandeb, and the Cape of Good Hope to see whether stress in one chokepoint is showing up in another route.
3. Use the IEA factsheet as the structural baseline for 2025 exposure, crude bypass capacity, and Qatar/UAE LNG dependence.
4. Treat IEA’s crude bypass capacity estimate as a crude-exposure screen, not as a full replacement calculation for total petroleum products or LNG.
5. Read EIA’s oil price outlook as a separate layer. Check reopening assumptions, stock release assumptions, demand adjustment, and delay scenarios.
6. Check the AIS methodology note before treating any revision as a new physical disruption.

What To Watch Next

EIA’s May 2026 STEO page lists the next STEO release date as June 9, 2026. The most useful question in that update is not simply whether the Brent forecast is higher or lower.

Start with revisions to 1Q26 Hormuz flows. Then look at how EIA estimates 2Q26 flows, whether LNG and petroleum flows move in the same direction, how strategic stock releases are reflected in the outlook, and whether EIA keeps the same warning about AIS data quality.

Read this way, the Strait of Hormuz is not just a headline risk. It is a test of energy security data discipline: flows first, crude bypass second, inventories third, and data quality always in view.

FAQ

Does a Strait of Hormuz disruption automatically mean oil prices rise?

EIA and IEA sources support the point that a major Strait of Hormuz disruption can affect global oil markets. The actual price effect depends on duration, inventories, demand adjustment, alternative supply, and forecast assumptions. That is why flow and exposure data should come before a price conclusion.

Why separate LNG from oil?

LNG cannot be rerouted as flexibly as crude oil. IEA says most Qatar and UAE LNG exports pass through the Strait of Hormuz, and alternative routes to the global LNG market are limited by existing liquefaction and export infrastructure.

Do strategic petroleum reserves solve the problem?

They can provide a buffer, but they do not reopen a chokepoint. If the transport bottleneck lasts, reserves buy time for rerouting, demand adjustment, or policy action rather than fully replacing normal flows.

How should I interpret later revisions to EIA’s 1Q26 Hormuz figures?

Start with EIA’s methodology note. Because EIA highlights unreliable AIS data and likely revisions, a changed number may reflect improved estimation rather than a new physical change in vessel traffic.

What belongs in a one-page Hormuz risk brief?

Include Hormuz petroleum flows, Hormuz LNG flows, IEA’s 2025 structural exposure baseline, crude bypass capacity, major strategic petroleum stocks, and EIA’s AIS data warning.