Valero Energy Corp. (VLO) reported an operational disruption and above-normal gas emissions over the weekend at its refinery in Port Arthur, Texas.

In a statement to the Texas Commission on Environmental Quality, the refinery cited a "process upset" that caused some 5,358 pounds of sulfur dioxide emissions. "Operations followed procedures to minimize emissions and mitigate the upset," the refinery said.

The emissions began Saturday night and lasted about four hours, it said.

The 335,000-barrel-a-day refinery is east of Houston.

Write to Dan Molinski at dan.molinski@wsj.com

 

(END) Dow Jones Newswires

August 26, 2019 08:02 ET (12:02 GMT)

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