# US diesel refining economics remain firm despite Iran war truce | Reuters

> The US diesel crack spread, the gap between ULSD futures and WTI crude, settled at $62.84 a barrel on Thursday, its highest since June 3, according to LSEG data. Refining economics remain firm even as the Iran war truce holds.

- Date: 2026-06-26 · published 2026-06-26T12:00:00.000Z
- Category: macro · region US · magnitude low
- Page: https://feedsoft.ai/events/19002-us-diesel-refining-economics-remain-firm-despite-iran-war-truce-reuters
- Commodities: [ULSD / Diesel](https://feedsoft.ai/c/DIESEL.md), [Crude Oil (WTI)](https://feedsoft.ai/c/WTI.md)

## Why it matters

Strong diesel margins signal tight distillate supply, which tends to support diesel-linked freight and fuel costs for feed logistics, while crude-driven declines do not fully pass through to refined products.

## Read by commodity

- WTI: neutral
- DIESEL: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| DIESEL | 2021-06-18 | [US Trucking Boom Contributes to Rising Demand for Diesel - TT](https://feedsoft.ai/events/46789-us-trucking-boom-contributes-to-rising-demand-for-diesel-tt.md) | +4.7% | +2.0% |
| DIESEL | 2023-10-05 | [US manufacturing rebound will stretch diesel supplies \| Reuters](https://feedsoft.ai/events/11718-us-manufacturing-rebound-will-stretch-diesel-supplies-reuters.md) | -0.9% | -2.8% |
| DIESEL | 2022-06-14 | [Diesel prices: The loss of US refining capacity is making things worse - FreightWaves](https://feedsoft.ai/events/41119-diesel-prices-the-loss-of-us-refining-capacity-is-making-things-worse.md) | +1.9% | -13.9% |
| DIESEL | 2026-08-19 | [U.S. Refiners Capitalize as Buyers Vie for Shrinking Diesel Supply - WSJ](https://feedsoft.ai/events/18075-u-s-refiners-capitalize-as-buyers-vie-for-shrinking-diesel-supply-wsj.md) | -6.3% | +17.9% |
| DIESEL | 2017-07-28 | [China diesel demand expected to return to growth as economy improves](https://feedsoft.ai/events/70130-china-diesel-demand-expected-to-return-to-growth-as-economy-improves.md) | +2.1% | +1.5% |
| WTI | 2022-06-14 | [Diesel prices: The loss of US refining capacity is making things worse - FreightWaves](https://feedsoft.ai/events/41119-diesel-prices-the-loss-of-us-refining-capacity-is-making-things-worse.md) | -8.6% | -19.2% |
| WTI | 2023-11-25 | [Ringgit likely to trade range-bound next week ahead of US economic data \| Scoop](https://feedsoft.ai/events/33433-ringgit-likely-to-trade-range-bound-next-week-ahead-of-us-economic-data-scoop.md) | -1.7% | -2.2% |
| WTI | 2023-02-08 | [Japan current account surplus shrinks sharply as weak yen, trade deficits bite \| Reuters](https://feedsoft.ai/events/37561-japan-current-account-surplus-shrinks-sharply-as-weak-yen-trade-deficits-bite.md) | +2.5% | -0.7% |

## Sources

- reuters.com: https://www.reuters.com/business/energy/us-diesel-refining-economics-remain-firm-despite-iran-war-truce-2026-06-26/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.