Ключевые слова: barrel, black, blue, business, construction, crane, crude, derrick, diesel, drill, drilling, energy, equipment, exploration, fossil, fuel, gas, gasoline, industrial, industry, machine, natural, ocean, offshore, oil, oilfield, petroleum, pipe, pipeline, plant, platform, pollution, port, power, production, pump, refinery, resource, rig, sea, silhouette, sky, steel, sun, sunrise, sunset, technology, tower, water, well,