Storage silos, fuel depot of petroleum and gasoline on the banks of the river in western Germany on a beautiful blue sky with clouds. Visible coal barge.barge, gas, refinery, oil depot, diesel, tank, storage, industry, gasoline, container, silo, industrial, liquid, store, business, architecture, construction, chemistry, factory, port, harbor, chemical, river, petroleum, metal, energy, fuel, depot, tower, big, production, oil, farming, sky, water, blue, machinery, structure, ladder, large, technology