About Duliajan
Duliajan is an industrial town located in Dibrugarh District in the upper north-east corner of India. The town is about 45 km east of Dibrugarh City. It is particularly known for its oil related industry, Oil India Limited, one of the country's largest oil and gas companies is headquartered in Duliajan. There was also other central government owned companies like B.C.P.L company of gas cracker & polymer, N.E.P.C.O, B.F.C.L. and the Shivani company which is India's largest private company for drilling.[2] Assam Gas Company Limited, which carries out business related to natural gas in India owned by the Government of Assam, is also located in this township.
Source : Wikipedia