Three Texas Refineries Report Operational Issues, Filings Say -- OPIS

Dow Jones12-11

Three Texas refineries reported recent operational issues, according to regulatory filings with the Texas Commission on Environmental Quality.

Valero reported a compressor upset at a delayed coking unit at its 424,000 b/d Port Arthur refinery on Tuesday, resulting in an emission event and flaring that lasted for about six hours, the company said in a filing.

Also, Pemex said the larger of its two crude distillation units called DU2 at its 340,000 b/d Deer Park refinery had an upset on Monday, sending excess materials to other processing units and resulting in flaring that lasted for about two hours, a TCEQ filing said.

In addition, Delek said in a Monday filing that the carbon monoxide boiler No. 9 at its 77,500 b/d Tyler refinery in East Texas reported an excess opacity event due to maintenance on Saturday. Excess opacity refers to the emission of pollutants exceeding limitations imposed by regulators.

This content was created by Oil Price Information Service, which is operated by Dow Jones & Co. OPIS is run independently from Dow Jones Newswires and The Wall Street Journal.

-- Reporting by Frank Tang, ftang@opisnet.com; Editing by Michael Kelly, mkelly@opisnet.com

(END) Dow Jones Newswires

December 10, 2025 12:24 ET (17:24 GMT)

Copyright (c) 2025 Dow Jones & Company, Inc.

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