Accident Description

Accident: PEMEX Deer Park Chemical Release

Location: Location: Deer Park, TX

Accident Occurred On: 10/10/2024 | Final Report Released On: 02/23/2026

Accident Type: Release

Investigation Status: The CSB's investigation was released on February 23, 2025.

October 10, 2024, at approximately 4:30 p.m., a hydrogen sulfide release occurred at the PEMEX Deer Park facility’s amine recovery unit while workers were attempting to remove an isolation blind from piping that normally transports hydrogen sulfide gas. The incident caused two fatalities and 13 injuries. 

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