Valero Energy Corp. reported excess emissions at its Port Arthur, Texas, refinery.

"A process unit upset resulted in excess emissions at Sulfur Recovery Unit No. 545," the refiner said in a statement posted to the website of the Texas Commission on Environmental Quality.

The statement from the 335,000 barrel-a-day refinery, located 90 miles east of Houston, said the excess emissions began Tuesday morning and ended later the same day.

 

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

 

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(END) Dow Jones Newswires

November 05, 2015 09:28 ET (14:28 GMT)

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