Ключевые слова: background, barrel, black, blue, business, construction, crude, derrick, diesel, drilling, ecology, economy, energy, environment, equipment, exploration, extraction, fossil, fuel, gas, gasoline, generation, industrial, jack, landscape, machine, natural, oil, orange, petroleum, pipe, pipeline, plant, platform, pollution, power, pump, resource, rig, rocking, silhouette, sky, steel, sun, sunrise, sunset, supply, technology, wealth,