ONEOK reports fire at Mont Belvieu fractionation facility

October 7, 2025 By Brian Richesson 0 Comments

A fire occurred Oct. 6 in the heating system of ONEOK’s MB-4 fractionator, which is one of the facilities located at its Mont Belvieu, Texas, fractionation complex, the company reported.

Fractionation operations at the complex were promptly shut down, and the fire, which was limited to MB-4, was quickly extinguished, according to the company. ONEOK anticipates that, after completing initial safety reviews, it will resume operations of the complex, except for the MB-4 fractionator, which will resume operations following the completion of repairs.

ONEOK thanked employees, first responders and community members who worked together to respond quickly to the incident.

“Employee and community safety remains the company’s top priority,” ONEOK shared in a news release. “No employees sustained injuries in connection with the incident.”

The company does not anticipate that the incident will have a material effect on its financial condition, results of operations or cash flows.

ONEOK, headquartered in Tulsa, Oklahoma, is a midstream operator that provides gathering, processing, fractionation, transportation, storage and marine export services. It transports natural gas, natural gas liquids, refined products and crude oil through its 60,000-mile pipeline network.

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