The Haldia Refinery for processing 2.5 MMTPA of Middle East crude was commissioned in January, 1975 with two sectors - one for producing fuel products and the other for Lube base stocks.
The refinery is in Haldia near Kolkata(West Bengal).The fuel sector was built with French collaboration and the Lube sector with Romanian collaboration. The refining capacity of the Refinery was increased to 2.75 MMTPA in 1989 through debottlenecking measures.
The refining capacity was further expanded to 3.75 MMTPA with the commissioning of new crude distillation unit of 1.0 MMTPA in March, 1997. The present refining capacity of this Refinery is 7.50 MMTPA