# Global diesel disruptions ripple through US refining, biofuel markets | S&P Global

> US Gulf Coast ULSD hit record highs in September, reaching $5.18 per gallon on Sept. 15 after rising more than 77% since the US-Iran conflict began. Russia extended its diesel export restrictions through October, and US ULSD inventories stand well below the five-year average.

- Date: 2026-09-21 · published 2026-09-21T12:00:00.000Z
- Category: geopolitics · region Global · magnitude medium
- Page: https://feedsoft.ai/events/17564-global-diesel-disruptions-ripple-through-us-refining-biofuel-markets-s-and-p
- Commodities: [ULSD / Diesel](https://feedsoft.ai/c/DIESEL.md)

## Why it matters

Tight global diesel supply raises energy and freight costs for feed producers and hauliers. Higher diesel also shifts biofuel economics, affecting soybean oil and corn-based ethanol margins.

## Read by commodity

- DIESEL: bullish ▲

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| DIESEL | 2026-09-15 | [US diesel prices hit new all-time high amid global supply disruptions, strong demand \| S&P Global](https://feedsoft.ai/events/17656-us-diesel-prices-hit-new-all-time-high-amid-global-supply-disruptions-strong.md) | -1.7% | -4.1% |
| DIESEL | 2025-07-28 | [EU Russia sanctions add fuel to red-hot global diesel market](https://feedsoft.ai/events/23943-eu-russia-sanctions-add-fuel-to-red-hot-global-diesel-market.md) | -4.4% | -3.8% |
| DIESEL | 2026-07-31 | [Market Talk \| Refiners Benefit As Global Diesel Shortfall Persists](https://feedsoft.ai/events/18535-market-talk-refiners-benefit-as-global-diesel-shortfall-persists.md) | -7.1% | +1.3% |
| DIESEL | 2025-10-28 | [Global refining margins soar as sanctions threaten Russian supplies \| Reuters](https://feedsoft.ai/events/22593-global-refining-margins-soar-as-sanctions-threaten-russian-supplies-reuters.md) | -1.4% | -1.1% |
| DIESEL | 2025-11-20 | [Refining Margins Soar as Global Oil Product Markets Tighten \| OilPrice.com](https://feedsoft.ai/events/11480-refining-margins-soar-as-global-oil-product-markets-tighten-oilprice-com.md) | -11.9% | -19.2% |

## Sources

- spglobal.com: https://www.spglobal.com/energy/en/news-research/latest-news/agriculture/092126-global-diesel-disruptions-ripple-through-us-refining-biofuel-markets

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