# Exxon Shuts Big Midwest Refinery After Outage as Diesel Prices Run Nearly 90% Higher

*Friday, September 18, 2026 at 6:16 AM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-09-18T06:16:58.450Z (2h ago)
**Category**: markets | **Region**: Global
**Importance**: 8/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/18168.md
**Source**: https://hamerintel.com/summaries

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**Deck**: Exxon Mobil has shut one of the largest diesel refineries in the U.S. Midwest because of an outage, temporarily removing about 11 million gallons of gasoline and diesel a day from the market. The stoppage comes as diesel prices have already surged nearly 90% this year and the U.S. enters peak demand season.

A major Midwestern refinery is offline just as diesel costs are already surging, raising the risk of tighter fuel supplies for transport and farming.

Exxon Mobil has shut down one of the largest diesel refineries in the Midwest due to outage issues, according to information released on 18 September. The plant produces roughly 11 million gallons of gasoline and diesel per day in normal operation. There was no immediate detail on the cause of the outage or how long the shutdown will last.

The timing is sensitive. Diesel prices have jumped nearly 90% this year, and the U.S. is moving into peak demand season, when freight, agriculture and heating all pull on the same pool of fuel.

For truckers, farmers and logistics firms, losing a large regional source of supply means more uncertainty over costs and availability. Many smaller operators have limited ability to hedge against price spikes and feel higher wholesale prices quickly in their operating budgets.

Consumers don’t buy much diesel directly, but they absorb the cost when transport and farm expenses feed into the price of goods. A shutdown in the Midwest can push up freight rates and, with a lag, affect what people pay for everything from food to building materials.

On the industry side, the outage forces a reshuffle. Other refineries can try to run harder and fuel can be redirected from other regions, but that takes time and may require higher prices to draw barrels away from existing buyers.

The key variables now are how long Exxon’s refinery stays down, how quickly alternative supplies can move into the Midwest, and how diesel futures and wholesale prices respond in coming days.