Ключевые слова: background, blue, business, construction, danger, derrick, diesel, drill, drilling, drilling rig, energy, environment, equipment, exploration, extraction, field, fuel, gas, gasoline, generation, industrial, industry, isolated, land, machine, metal, natural, oil, oilfield, petrol, petroleum, pipe, pipeline, plant, platform, pollution, power, production, pump, refinery, resource, rig, sea, shale, sky, steel, technology, tower, well, white,