DIBRUGARH, November 7, 2026 — The Oil India Tengakhat fire claimed a second worker after an injured engineer died during treatment early Saturday, taking the confirmed death toll to two. The latest confirmed death was that of Tapas Jyoti Gogoi, an engineer employed by maintenance contractor Spectron Engineering Private Limited, who suffered extensive burns in the incident at the Intermediate Tank Farm in Dibrugarh district.
Oil India’s first statement said seven personnel employed by its operations-and-maintenance contractor sustained burn injuries when a fire broke out at an indirect bath heater during maintenance work at about 9.05 am on Friday, November 6. One worker, Raju Dutta, died at the site. Six others were rescued and taken for treatment. Gogoi, who was among those injured, later died at a private hospital in Dibrugarh at around 3 am on Saturday, according to the company’s area manager and family members cited by the Press Trust of India.
PTI reported that Gogoi had sustained burns over about 70 per cent of his body and that three of the injured workers remained in critical condition as of its Saturday afternoon dispatch. NDTV also reported the death toll had risen to two, while the company’s initial statement had listed one fatality and six injured workers. The figures in this report distinguish the initial statement from the later update: two deaths have been confirmed by the later reporting, with the condition of the remaining injured workers still serious.
One local report later on Saturday claimed that a third injured worker had also died. That report had not been corroborated by the Oil India statement or the later PTI update available at the time of writing, which continued to record two deaths. The company and district authorities should clarify whether there has been any further change in the casualty count. Until an official confirmation or independent corroboration is available, the reported third death should not be treated as established fact.
The fire occurred at the Indirect Bath Heater area of the Intermediate Tank Farm at Tengakhat, near Duliajan in Dibrugarh district. Oil India said the equipment area had been isolated for maintenance since November 4. The incident therefore took place during a planned maintenance activity rather than during routine operation of an active process unit, although the precise sequence that led to the fire and the conditions at the worksite remain under investigation.
The company said seven workers employed by the contractor suffered burn injuries. Six were rescued and taken for medical treatment, while Dutta died at the site. Oil India’s statement said five of the injured were taken to Assam Medical College and Hospital in Dibrugarh and one was taken to the company’s hospital at Duliajan. They were receiving treatment following the incident. The later death of Gogoi means the number of fatalities increased after the initial emergency response.
Oil India said firefighting began through the installation’s fixed firefighting system and that its fire-service department deployed fire tenders and dry-chemical-powder equipment. The company reported that the fire was extinguished by about 12.30 pm on Friday and that 11 fire tenders were deployed. The district administration also said the situation had been brought under control and there was no active fire. Those statements describe the response and immediate site condition; they do not explain what caused the ignition or whether equipment failure, a procedural lapse or another factor contributed.
An Intermediate Tank Farm is used to hold petroleum products temporarily before they are transferred for further processing or transport. A fire in such a facility can create risks involving flammable material, heated equipment, connected pipelines and nearby workers. The indirect bath heater was the specific area identified by the company as the location of the incident. The equipment had been taken out of service for maintenance, but the public statements reviewed so far do not provide the detailed work permit, isolation records, inspection results or contractor safety procedure that would be needed to reconstruct the event.
The difference between a fire at equipment under maintenance and a fire in an operating unit is important, but it does not by itself establish that the equipment was safe or that the required isolation steps were sufficient. Investigators will need to examine which systems had been isolated, whether stored or residual hydrocarbons remained in the relevant equipment, what work was being undertaken and what safeguards were in place. The available public information does not yet answer those questions.
The seven injured workers were employees of Spectron Engineering Private Limited, the contractor engaged for maintenance work, according to reports citing the company and officials. That makes the contractor’s work procedures and coordination with Oil India a central part of the inquiry. Responsibility for a safe worksite can involve several layers: the facility owner, the operating department, the contractor, supervisors and individual workers. A final finding should be based on records and technical evidence rather than on the fact that the work was being done by a contractor alone.
Oil India said it had constituted an internal inquiry committee to establish the immediate and underlying causes of the incident, assess damage and recommend measures to prevent a recurrence. The district administration also said it would investigate and work with the company to ensure necessary steps were taken. The inquiry will need to examine the maintenance plan, permit-to-work process, equipment isolation, fire-protection arrangements, training and emergency response.
For the families of the workers, the priority is the treatment of those still injured and the support available after two deaths. The company’s later reports should provide a clear account of the treatment arrangements and the condition of the survivors. The initial statement identified six injured people but did not publish a complete medical bulletin for each one. PTI’s later account said three were in critical condition. Those assessments can change, and the casualty count should be updated only when the hospital, company or district authorities provide a confirmed update.
Industrial maintenance can expose workers to hazards even when a unit has been isolated. Equipment may retain heat, pressure or combustible residue; nearby systems may remain active; and maintenance work can involve cutting, welding or other tasks that introduce ignition sources. A safe system usually depends on documented isolation, gas testing where appropriate, supervision, permit controls and ready access to emergency response. The investigation will determine which precautions applied to the indirect bath heater work and whether they were followed.
The incident also raises the question of how a public-sector energy company supervises work carried out by outside contractors. Contracting does not remove the need for clear coordination between the facility operator and the contractor. The worksite must have a shared understanding of which equipment is isolated, what activities are authorised and who has authority to stop work if conditions change. The internal inquiry should establish whether those responsibilities were clear and whether the maintenance area had been checked before work began.
Oil India’s statement that the area had been isolated since November 4 is a useful starting point, not a final explanation. Investigators will need to verify the isolation through logs, permits and inspection records. They should also determine whether the indirect bath heater, its connected systems and the surrounding area were inspected after the isolation, and whether any work beyond the approved maintenance scope was undertaken. The technical cause could involve more than one factor, and no conclusion has yet been announced.
The Tengakhat incident is a serious workplace-safety event for the company, its contractor and the wider energy sector in Assam. Oil India operates facilities that support the handling and movement of petroleum products, and a fire during maintenance underscores the need for strict controls even when equipment is not in normal operation. The fact that the fire was brought under control within hours does not diminish the consequences for the workers and their families.
The next developments to watch are the company’s casualty update, the medical condition of the remaining injured workers, the district administration’s findings and the results of Oil India’s internal inquiry. The company should also clarify whether the reported third fatality has been confirmed or remains unverified. Until then, the established public record supports two deaths, six injured workers in the initial company statement and a later report that three of the surviving injured remained critical.