Hikari Maru No.3 - Yokosuka, Japan

She is one of the 2 Apollo Oil's bunkering vessel, namely ' Hikari Maru no.3 ' and ' Hikari Maru no.7 ' should be the former ( no.3) judging by her comparatively round top funnel and the red crane at the fore

They trade mainly Tokyo Bay area including Yokohama. Chiba, and Yokosuka

http://kanagawa-apolloil.com/marine/index.php

Thanks William - too easy that one.