Japanese naval force underway towards Balikpapan or to Celebes according to the U.S. Joint Intelligence Committee. Daily summary dated 21 January 1942

An item reported that 38 Japanese transports escorted by 15 warships were sighted in the Dutch East Indies with as target Balikpapan, Borneo or the west coast of Celebes. The Dutch were demolishing the oil fields at Balikpapan.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 42 dated 21 January 1942