Idea of Oil Platform Icon
It's a drawing meant to look like an industrial looking platform on stilts or pylons. Across the bottom of the image are to horizontal wavy lines running parallel to one another to represent water. coming out of the water is two pylons supporting a platform. There is a structure on the platform to make it look like an oil rig.
This page shows the different variations of the Oil Platform from an Icons8 icon pack. Feel free to resize and recolor the icon, and then download the icon in PNG format for free.