Assam Tengakhat OIL Blast Death Toll Climbs to Six After Worker Dies in Dibrugarh

DIBRUGARH — The death toll from the November 6 explosion at Oil India Limited’s Intermediate Tank Farm in Tengakhat climbed to six after another critically injured worker died in a private hospital.

Golap Dutta, a resident of Ulton Bordoloni in Tengakhat, succumbed to extensive burn trauma after days under intensive medical care. He could not recover. Dutta’s death follows earlier fatalities from the high-intensity crude storage fire, which engulfed maintenance crews on site and triggered urgent medical evacuations across Dibrugarh district.

Fatal Maintenance Operation at Tengakhat Tank Farm

The blast tore through the crude oil storage sector at the Intermediate Tank Farm facility during routine maintenance operations. A sudden concussive wave ignited storage tanks, wrapping workers in intense heat and trapping specialized technical crews operating near the tanks. Emergency rescue teams initially rushed the burned personnel to Assam Medical College and Hospital in Dibrugarh before private intensive care units admitted critical cases.

Pressure mounted swiftly on site managers. Four employees have been placed under suspension as administrative scrutiny focuses on operations inside the crude terminal.

The affected workforce belonged to Mumbai-based Spectron Engineers Private Limited, an engineering contractor commissioned by Oil India Limited to execute specialized technical maintenance across the Tengakhat tank farm installations.

Industrial Safety Audits and Ongoing Inquiries

Tapas Gogoi and Rupam Gogoi had previously succumbed to catastrophic burns sustained during the initial deflagration. Three other workers—Sailen Gogoi, Kumud Gogoi, and Indra Gogoi—remain under medical supervision for burn injuries sustained in the same blast.

Yet fundamental operational questions remain unresolved. The precise mechanics that ignited volatile crude vapors inside the tank farm storage boundary during active maintenance have not been formally confirmed. Technical specialists and plant engineers continue inspecting charred containment infrastructure to isolate whether structural component degradation, electrical spark failure, or breached safety isolation protocols permitted the firestorm to ignite.

Industrial Safety Context: The Tengakhat terminal serves as a central pipeline hub for upstream Assam crude transport, making isolation procedures during active tank repairs mandatory under state industrial codes.

Safety investigators and plant safety teams are preparing a detailed technical assessment to establish whether containment venting regulations were fully enforced before maintenance crews entered the crude oil storage perimeter.