About North East Regional Laboratory, Indian Oil Corporation Ltd., (Assam Oil Division)
Digboi's tiny city in the country's distant north-eastern part is the birthplace of India's oil industry. Digboi Refinery is India's earliest working refinery and one of the world's earliest working refineries founded on 11 December 1901. The old Digboi Refinery was called the "Gangotri of the Indian Hydrocarbon Sector." Earlier held and controlled by Assam Oil Company Limited / Burmah Oil Company, it entered the Indian Oil Corporation Limited form by Parliament Act of 14 October 1981 and became the Assam Oil Division of Indian Oil Corporation Limited.
The present brand range of Digboi Refinery comprises LPG, MS & HSD certified BS-IV, Fuel Oil, Wax, RPC and Sulfur.
The crude handling capability of Digboi Refinery is 0.65 MMTPA. Waxy crude obtained from oil fields working in neighboring Digboi region is processed. It also began Crude condensate handling in 2018. Digboi Refinery was upgraded towards the beginning of the 1990s with the introduction of fresh CDU, DCU, and CRU. New SDU, WHFU, HDTU, HGU, SRU and Captive Power Plant units were commissioned in the early years of the 21st century.