DIGBOI, March 23: The centurion Digboi refinery, which is Asia's oldest working petroleum refinery, and which forms the Assam Oil Division of Indian Oil Corporation Limited, plans to go in to the lucrative exploration and production of crude in its second century of existence. The refinery, which went on stream in 1901, has been chiefly what its name suggests: its refines crude and since 1902, has been marketing its end products. The logic being that "crude sells easily while products needs marketing." The Digboi refinery, as most would know, was part of the Burmah Oil Company till 1981when it...