Smoke is seen during a fire at the HF Sinclair Refinery on Monday, May 11, 2026.
Smoke is seen during a fire at the HF Sinclair Refinery on Monday, May 11, 2026. Credit: Milo Gladstein / Tulsa Flyer

Tulsa firefighters responded to the HF Sinclair refinery around 11 a.m. to provide standby support during a fire at the facility, according to the Tulsa Fire Department.

Tulsa fire crews and Berryhill firefighters were positioned to assist if needed, but the refinery’s own fire brigade handled the fire, allowing outside crews to return to service, Tulsa Fire said.

Tulsa Fire Department firefighters respond to a fire at the HF Sinclair Refinery on Monday, May 11, 2026.
Tulsa Fire Department firefighters respond to a fire at the HF Sinclair Refinery on Monday, May 11, 2026. Credit: Milo Gladstein / Tulsa Flyer
Tulsa Fire Department firefighters respond to a fire at the HF Sinclair Refinery on Monday, May 11, 2026.
Tulsa Fire Department firefighters respond to a fire at the HF Sinclair Refinery on Monday, May 11, 2026. Credit: Milo Gladstein / Tulsa Flyer

Large flames and thick black smoke could be seen coming from the refinery before the fire was brought under control. A charred vehicle was visible near a large industrial tank, while a fire suppression system appeared to be active at the scene.

Officials have not said what caused the fire or whether anyone was hurt.

This is a developing story and will be updated as more information becomes available.

This article was originally published by KOTV (News on 6). You can see the original story here.