Where was Asia’s first cross-country pipeline covering a distance of 1,157 km constructed by Oil India Limited?

From the Naharkatiya oilfield in Assam to the Barauni refinery in Bihar.

Oil India Limited (OIL) under the administrative set-up of the Ministry of Petroleum and Natural Gas is engaged in the exploration, production and transportation of crude oil and natural gas. It was incorporated in 1959 as a company. Asia’s first cross-country pipeline covering a distance of 1,157 km was constructed by OIL from the Naharkatiya oilfield in Assam to the Barauni refinery in Bihar. It was further extended up to Kanpur in 1966. GAIL (India) Ltd. was set up in 1984 as a public sector undertaking to transport, process and market natural gas for its economic use. The first 1,700 km long Hazira-Vijaipur - Jagdishpur (HVJ) cross-country gas pipeline, constructed by GAIL (India), linked Mumbai High and Bassein gas fields with various fertiliser, power and industrial complexes in western and northern India. This artery provided the impetus to the Indian gas market development.