Ключевые слова: background, barrel, black, blank, business, chemical, clean, concept, container, crude, danger, design, diesel, drum, energy, environment, fossil, fuel, gallon, gas, gasoline, group, icon, industrial, industry, isolated, liquid, market, material, metal, mineral, natural, object, oil, petrol, petroleum, pollution, power, resource, steel, stone, storage, tank, template, toxic, trade, white,