The Millenium Explorer is the worlds largest methanol supertanker with a deadweight of 100,000 tons. It was launched in 1999 and is large enough to carry its own nitrogen processing plant. It is owned by Japanese shipping corporation Mitsui OSK Lines Ltd. MOL own 60% of the worlds methanol tankers (by tonnage) as of the Millenium Explorer's launch. The ship carrys methanol used in various industrial applications and has a crew of around 20. The majority of MOL's crew's are, bizarrely for a Japanese company, Filipino.
ps: you can see a picture of the Explorer here: http://www.mol.co.jp/services/oil4b-e.html on the MOL website.