Ключевые слова: big, black gold, blue sky, clear sky, color, construction, crane, dark, derrick, drill, drilling, evening glow, factory, gas well, illuminated, large, lighting, machine, manufacture, metal, modern, night, oil field, oil industry, oil patch, opec, orange, outdoor, petrochemical plant, place of work, polar climate, rig, rig skidding direction, route, siberia, single object, sky, snow, tall, technology, tower, twilight, urban scene, vertical, well platform, winter, work tool, yellow,