Further report in the local newspaper, note however that the MP making the comments is a list MP rather than elected and is of the opposition party (NZ has an MMP style government) and also that the Rena ran under full power into the Astrolabe Reef off Tauranga. This incident did however cause a lot of pollution not only from the oil but from containers that split open.
Article is at:-
http://www.stuff.co.nz/environment/10129804/Incident-Rena-like.
Dave G