Wico—a screw steam tanker of 6,300 tons' displacement built in 1888 at Newcastle, England, by Armstrong Mitchell and Co., Ltd.—was owned by the Standard Oil Co., of New Jersey, prior to World War I. Apparently earmarked by the Navy for use as a depot oiler and designated Id. No. 1278 in 1917 or 1918, the vessel apparently was never taken over for naval service. However, she was armed by a naval crew to man the two 4-inch guns which were mounted on the ship. After the armistice, these guns were removed at New York on 7 February 1919. The ship was broken up for scrap in December 1922.