Glückauf was a German ship that represented a major step forward in oil tanker design. "When the Glückauf sailed from the Tyne on 10 July 1886 she was the first ocean going tanker with oil to her skin". The vessel was in use from 1886 to 25 March 1893, when it ran aground at Fire Island in New York.

An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined crude oil from its point of extraction to refineries. Product tankers, generally much smaller, are designed to move refined products from refineries to points near consuming markets.