AmericasOilWatch Weekly
America Has Crude. The Trade Routes Are Narrowing.
19 August 2026
U.S. crude inventories have risen sharply and refineries are running hard. Yet diesel jumped almost 20 cents in a week, and the margin for turning crude into diesel passed $100 a barrel for the first time on record. The constraint has moved beyond America's borders — to damaged energy infrastructure, constrained Saudi export routes and a war spreading across the Middle East.
The inventory figures below come from the latest EIA Weekly Petroleum Status Report available at publication, covering the week ending 7 August. The next report is due later today.
The numbers
- 424.4m barrels — U.S. commercial crude inventories, up 17.4m on the week
- 208.7m barrels — U.S. gasoline inventories, about 6% below the five-year seasonal average
- 107.1m barrels — U.S. distillate inventories, about 12% below
- 298.7m barrels — Strategic Petroleum Reserve, the first reading below 300m since January 1983
- 96.2% — U.S. refinery utilisation
- $4.049/gal — U.S. regular gasoline, week ending 17 August, up 4.3 cents on the week
- $5.454/gal — U.S. diesel, week ending 17 August, up 19.7 cents on the week
- $102.20 — U.S. diesel crack, an intraday record set on 17 August
Stocks, utilisation and the reserve: EIA Weekly Petroleum Status Report, week ending 7 August. Pump prices: EIA weekly retail series, week ending 17 August. Five-year comparisons are computed against the same calendar week over the prior five years.
Correction
Correction to our 12 August briefing: We labelled the EIA's all-grades gasoline series as regular gasoline. The correct regular-gasoline readings were $4.006, down from $4.079 — not $4.141 from $4.211. The diesel and inventory conclusions were unaffected. We have corrected the underlying feed and all current displays.
Last week we asked whether the American Petroleum Institute's reported 9.1-million-barrel crude build would survive contact with the official data.
It did not merely survive.
It nearly doubled.
The inventory contradiction
The latest published EIA report, covering the week ending 7 August, showed commercial crude stocks rising 17.4 million barrels to 424.4 million.
Refineries operated at 96.2% of capacity, and crude imports reached about 7.3 million barrels per day.
That is a large arrival of crude oil by any measure.
But the product position barely moved.
Distillate inventories stood at 107.1 million barrels, around 12% below their five-year seasonal average. Gasoline stood at 208.7 million, around 6% below. Commercial crude, by contrast, is only around 2% below its own seasonal norm.
America therefore has a substantial volume of crude and a much thinner buffer of usable transport fuel.
More crude entering storage cannot immediately replace missing diesel.
At the pump, diesel is the signal
The US average retail price on 17 August was $4.049 per gallon for regular gasoline, up 4.3 cents on the week.
On-highway diesel reached $5.454 per gallon — up 19.7 cents in a single week, and $1.741 above the same week last year.
Diesel is now the more important stress signal.
It powers freight, agriculture, construction and much of the physical economy. A diesel increase does not stay at the filling station; it works through transport costs and eventually into the price of goods.
The clearest evidence that this is not a crude problem is the margin.
The U.S. diesel crack — the refining spread between crude and diesel — briefly exceeded $100 a barrel for the first time, reaching an intraday record of $102.20 on 17 August (Reuters).
A record margin means refiners are being paid extraordinary sums to convert crude into diesel, and still cannot make enough of it.
That is a conversion and logistics constraint, not a shortage of barrels.
The reserve went below 300 million barrels
The same report carried a figure that has not been seen in more than four decades.
The Strategic Petroleum Reserve fell 6.1 million barrels to 298.7 million — the first weekly reading below 300 million barrels since 28 January 1983.
The drawdown has also re-accelerated. The four most recent weekly draws run 5.1, 3.8, 2.8 and now 6.1 million barrels, reversing the easing trend of late July. The reserve has lost 20.8 million barrels in five weeks.
As we set out when we rebuilt this dashboard's SPR panel, this is not a countdown to America running out of oil, and it should never be divided by consumption to produce one. The United States still produces around 13.8 million barrels a day, holds 424 million barrels of commercial crude on top of the reserve, and continues to import.
What it measures is the insurance against the next disruption — and that insurance is being spent while the current one is still running.
Saudi Arabia's two escape routes are impaired
Saudi Arabia would ordinarily be among the countries capable of cushioning a global disruption. The war has instead placed pressure on both of its principal export routes.
Saudi energy infrastructure has already been struck directly in this conflict. Iran hit the East–West Pipeline in April, at a point when that pipeline had become the kingdom's principal alternative to Hormuz. Iran-aligned Houthi attacks subsequently spread to Saudi facilities and vessels around the Red Sea.
The present position is not a complete Saudi export shutdown.
Saudi Aramco has resumed some loadings from terminals inside the Strait of Hormuz. Three very large crude carriers, each capable of carrying around two million barrels, loaded at Juaymah and Ras Tanura between 12 and 16 August. Aramco is also offering crude through ship-to-ship transfers off Fujairah.
But these movements should not be mistaken for normal trade.
The Red Sea route remains constrained by the Houthi blockade, while Hormuz remains dangerous and thinly trafficked. Only about 670,000 barrels per day are expected to load from Egypt's Sidi Kerir terminal during August, against roughly four million barrels per day previously available through Yanbu.
The oil is moving. It is moving by slower, costlier and more fragile routes.
Hormuz has not returned to normal
Only six commodity vessels crossed the Strait of Hormuz on Tuesday, down from nine on Monday and below a recent average near eleven a day.
Before the war, about a fifth of globally traded crude oil and LNG passed through the strait.
Some oil continues to cross by covert shuttle movements, military-supported passages and transfers outside the Gulf. Those measurements cannot simply be added together: the same cargo may appear in a loading record, a shuttle movement, a ship-to-ship transfer and a subsequent tanker departure.
What can be said confidently is that observable traffic remains thin, and that major operators continue to avoid the route.
Two large Chinese state shipping companies, which previously handled roughly half of China's Middle Eastern oil imports, have stopped operating through both Hormuz and Bab el-Mandeb since late July.
Iran says Hormuz remains closed. The United States says it is open.
Vessel movements — not political declarations — show a waterway operating at a fraction of its normal capacity.
Trade relations are breaking down too
The UAE has halted trade with Iran after reporting Iranian missile launches toward maritime traffic.
This is not an oil embargo and should not be counted as a direct loss of barrels.
It is nevertheless significant. Commercial links are being severed alongside the military escalation, reducing the number of practical channels through which the conflict might be contained.
Israel widens the conflict again
Israel conducted eight airstrikes against the Abu al-Duhur airbase near Aleppo on 18 August — the first Israeli attack on Syrian government facilities since March.
No casualties or energy-supply losses were reported. The strike therefore cannot be counted as an interruption to oil production or trade.
Its significance lies elsewhere. Turkey condemned the attack, and the US envoy described it as an unnecessary escalation. By extending military action into Syria, Israel has introduced another possible point of confrontation in a conflict already spanning Iran, Lebanon, the Gulf and the Red Sea.
For oil markets this is a duration signal rather than a lost-supply figure. It reduces confidence that shipping conditions will normalise soon, and raises the risk that future attacks reach pipelines, terminals or ports.
Atlantic barrels provide only a partial offset
The Americas continue to produce additional crude.
Venezuelan shipments to the United States reached approximately 786,000 barrels per day in July, up from 284,000 in January. Guyana is also receiving a larger entitlement from production at the Stabroek Block.
These barrels matter. They reduce US dependence on the most disrupted routes and provide suitable feedstock for Gulf Coast refiners.
But Atlantic crude cannot instantly replace Middle Eastern diesel exports, missing refinery output, or the logistical capacity lost when tankers avoid major chokepoints.
A barrel of crude arriving on the Gulf Coast is not the same thing as a barrel of diesel already positioned near the customer who needs it.
Market snapshot
Brent was trading around $91.31, after four consecutive higher closes. WTI was around $84.38, having eased in the latest session after rising during the preceding sessions.
Benchmark prices observed at 08:53 GMT on 19 August 2026. Traders continue to weigh reduced Hormuz traffic against the failure of diplomatic efforts to restore normal exports.
The bottom line
The immediate American problem is not whether crude exists.
It is whether crude and refined fuel can move through a war spreading across two chokepoints, while US distillate inventories are already historically thin and the strategic reserve has fallen to a 43-year low.
Saudi Arabia is moving some oil, but neither of its principal routes is functioning normally. Alternative Atlantic supplies help, but they do not repair the global refining and shipping system.
The barrel is arriving. The diesel buffer — and the trade system carrying it — remain under pressure.
Coming next
Later today: the EIA Weekly Petroleum Status Report for the week ending 14 August lands at 10:30 Eastern. After a 17.4-million-barrel crude build and a 6.1-million-barrel reserve draw, the numbers underneath the headline matter more than usual.
What we are watching this week:
- US distillate inventories and refinery utilisation
- Whether the diesel crack holds near record levels
- Actual Hormuz vessel crossings, not declarations that the strait is open
- Saudi loadings from Ras Tanura, Juaymah and Sidi Kerir
- Any documented damage to pipelines, refineries, terminals or tankers
- Whether Israel's widening campaign produces a physical energy disruption
On the site: the SPR panel reports the stock, the rate of depletion and DOE's maximum drawdown capability — never a "days of cover" countdown. Our reasoning is on the methodology page.
Systemic State Observatory completed its end-to-end test subscription journey this week: checkout, entitlement and magic-link return all worked in Stripe test mode. It remains private while the legal-owner details and final live-payment checks are completed. Public access will be announced only after those checks pass.
— AmericasOilWatch
Independent monitoring of oil supply, inventories, infrastructure, prices and energy resilience across the Americas. Market prices are snapshots rather than forecasts. Where a figure is unverified, we say so.
Sources: EIA Weekly Petroleum Status Report (series WCESTUS1, WGTSTUS1, WDISTUS1, WCSSTUS1, WPULEUS3) and the weekly retail price series for regular gasoline and on-highway diesel; Reuters on the diesel crack, Saudi loadings and alternative routes, the April East–West Pipeline attack, Hormuz traffic, Chinese shipping avoidance, the Iran–UAE trade halt, Israeli strikes in Syria and the market snapshot.
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