This looks like a cylinder on its side. There's a water droplet on the cylinder. There's a long rectangle along the bottom of the cylinder. There's four circles on the bottom of the rectangle.
This is a Oil Tanker icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,900 icons, all in the same style and quality.