Sydney Harbour, Bank Anchorage, for bunkers. Early, 8 July 2017.
Vessel at 33°50'49.75" S 151°15'48.71" E

Marine Traffic data:
TARANAKI SUN
IMO: 9751406
MMSI: 319091800
Call Sign: ZGFL8
Flag: Cayman Is [KY]
AIS Vessel Type: Tanker
Gross Tonnage: 30561
Deadweight: 51447 t
Length Overall x Breadth Extreme: 186m × 32.2m
Year Built: 2016

Data from https://www.porttaranaki.co.nz/news/2016/06/state-art-methanol-vessel-visits-port

The Taranaki Sun is one of seven new ships built for Waterfront Shipping
Company Ltd, a subsidiary of Methanex, to load and transport methanol.

The 50,000 dead weight tonne vessels, boast the first two-stroke dual fuel
engines that can run on methanol, fuel oil, marine diesel oil or gas oil. The
ground-breaking technology will significantly reduce emissions and give ship
owners a viable, efficient and convenient fuel alternative.

Methanol, which is manufactured at three plants in Taranaki by Methanex, is a
biodegradable, clean-burning fuel that reduces smog-causing emissions.