XOM · News · 20260914N

Baytown Unauthorized Emissions

ExxonMobil Holdings Corp · 2026-09-14 · Importance 31 · Surprise 42

ExxonMobil’s Baytown refinery released more than 54,000 pounds of unauthorized carbon monoxide after a boiler malfunction on September 8, 2026. The release occurred in the Houston region, which is already working to meet federal ozone standards. Environmental group Air Alliance Houston said the facility has a history of unauthorized emissions and permit violations, creating potential regulatory and compliance exposure.

Key facts

• ExxonMobil's Baytown refinery released over 54,000 pounds of unauthorized carbon monoxide due to a boiler malfunction on September 8. source
• The Baytown unauthorized release contributes to air quality issues in the Houston region, which already struggles to meet federal ozone standards. source
• Environmental group Air Alliance Houston noted that the Baytown facility has a history of significant unauthorized emissions and permit violations. source