Valero Energy Corp. (VLO) said its McKee refinery in the Texas panhandle continued to experience above-normal emissions Wednesday following a recent blast of below-freezing temperatures.

In a statement to the Texas Commission on Environmental Quality, the 168,000-barrel-a-day refinery said that over the weekend "multiple instrument transmitters malfunctioned due to sub-zero degree Fahrenheit ambient temperatures." Those issues, it said, eventually led to emissions that reached excess levels Monday and were expected to remain above-normal until Wednesday afternoon.

"The refinery personnel is following safe shutdown/start-up procedures to reduce and minimize emissions," it added.

The McKee (http://dowjonesnews.com/newdjn/story.aspx?StoryID=DN20160111013311&TakeNo=1#Term4) refinery is located in Sunray, 65 miles north of Amarillo.

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

(END) Dow Jones Newswires

December 21, 2016 07:52 ET (12:52 GMT)

Copyright (c) 2016 Dow Jones & Company, Inc.
Valero Energy (NYSE:VLO)
Historical Stock Chart
From Mar 2024 to Apr 2024 Click Here for more Valero Energy Charts.
Valero Energy (NYSE:VLO)
Historical Stock Chart
From Apr 2023 to Apr 2024 Click Here for more Valero Energy Charts.