Oriental Bluebird
 The 8725 ton Hiyo Maru (飛鷹丸) was the largest member of the Japanese whaling fleet; providing fuel resources and stock storage space for that fleet and its crew. In 1992 it was renamed and re-flagged to Panama as the Oriental Bluebird. According to Greenpeace after a dispute with the Panamanian Government in 2008 it was de-flagged and re-registered to Japan.