The Mumbai Refinery located Mumbai, Maharashtra, India came into stream in 1954 under the ownership of Esso. In March 1974 the Government of India acquired it along with LUBES. Hindustan Petroleum was formed on 1974 after the merger of these companies. The capacity of the Mumbai Refinery of Hindustan Petroleum was 3.5 MMTPA which was increased to 5.5 MMTPA during 1986 after the implementation of an expansion programme. The BPCL also has a refinery in Mumbai.