Ключевые слова: barrel, breakage, chair, cloud, construction, cow, crash, crude, derrick, drilling, ecology, economic, energy, extract, farming, field, flora, fossil, fuel, gas, grass, herd, industrial, jack, machine, many, mining, oil, oil pump, oilfield, old, petroleum, pipe, pipeline, production, pump, repair, rocking, row, russia, rusted, sky, stand, well,