Oil India Limited Reports One Death, Six Injuries at Tengakhat

Oil India Limited reported that one operations-and-maintenance contractor person died and six were injured in a fire at its Tengakhat Intermediate Tank Farm on 6 November 2026, with 11 fire tenders deployed to extinguish the blaze by 12:30 PM. The fire began at about 9:05 AM in an isolated indirect bath heater area undergoing maintenance.

What happened at Oil India’s Tengakhat tank farm?

Oil India said the fire occurred at about 9:05 AM on 6 November 2026 at the indirect bath heater, or IDBH, area of Intermediate Tank Farm, or ITF, Tengakhat near Duliajan in Assam’s Dibrugarh district. The company said maintenance activities were under way at the IDBH when the incident took place.

The IDBH area had been in isolation since 4 November 2026, two days before the fire, according to Oil India. The disclosure therefore places the incident in an isolated maintenance area, but it does not identify an ignition source, failed component, work activity or sequence of events that led to the fire.

The reported times indicate that the response continued for about three hours and 25 minutes between the fire report and extinguishment. Oil India did not disclose the quantity of material involved, damage to the installation, production impact, environmental effect or financial consequences in its 6 November 2026 statement.

Who was injured in the Oil India Tengakhat fire?

Seven people of the operations-and-maintenance, or O&M, contractor sustained burn injuries, and one person succumbed to injuries at the incident site, Oil India said. The remaining six people were rescued and taken for medical treatment after the 6 November 2026 fire.

Five of the six injured people were taken to Assam Medical College and Hospital, or AMCH, in Dibrugarh, Assam, while one was taken to Oil Hospital in Duliajan. Oil India said medical treatment was being provided to all six injured people, without disclosing their identities, medical conditions or expected recovery periods.

The company’s count of seven people with burn injuries includes the person who died at the site and the six people transferred for treatment. Oil India expressed condolences to the bereaved family, but its release did not name the O&M contractor or disclose compensation, family-support measures, regulatory notifications or the duration of any work suspension.

How did Oil India extinguish the Tengakhat fire?

Oil India said firefighting began through the fixed firefighting system at the installation, followed by the immediate mobilisation of its fire service department. The company specifically said it mobilised a fire tender and a Dry Chemical Powder, or DCP, tender after the 9:05 AM incident.

A total of 11 fire tenders were deployed at the ITF-Tengakhat site, and Oil India said the fire was extinguished at 12:30 PM on 6 November 2026. The company stated that the situation was under control after the blaze was put out.

The disclosure distinguishes between the fixed firefighting system at the installation and mobile fire-service resources sent to the site. However, Oil India did not say how many of the 11 fire tenders belonged to the company, whether any outside agencies participated, or whether there were evacuations, releases, monitoring measures or post-fire cooling operations.

What will Oil India investigate after the fire?

Oil India has constituted an internal inquiry committee to examine the immediate and underlying causes of the 6 November 2026 incident. Its stated remit also includes damage assessment and recommendations for proactive measures to avoid such incidents in the future.

The inquiry has not yet assigned responsibility or identified a technical, procedural or human cause for the incident. Oil India did not disclose the committee’s members, the inquiry timetable, a publication date for findings or whether the review would include maintenance procedures, isolation controls, contractor supervision or emergency systems.

Damage assessment is part of the committee’s work, although Oil India did not quantify physical damage in the 6 November release. The available disclosure establishes that the IDBH was isolated from 4 November, that seven O&M contractor people sustained burns, and that the fire was extinguished at 12:30 PM; further conclusions await the internal review.

Conclusion

Oil India’s 6 November 2026 disclosure records a fatal fire during maintenance at the isolated IDBH area of ITF-Tengakhat. One O&M contractor person died, six were injured, and the company said fixed firefighting equipment and 11 fire tenders brought the incident under control within the same day.

The next development to watch is the internal committee’s assessment of immediate and underlying causes, damage and preventive measures. Oil India has not disclosed a deadline for findings, a restart plan for the IDBH area, a production effect or a financial impact, leaving these matters unresolved.