Sticking to the low end of government estimates, the National Resources Defense Council says there may be no more than 3.2 billion barrels of economically recoverable oil in the coastal plain of ANWR.

美国国家资源保护委员会遵照政府预估范围的下限，表示在安瓦尔的沿海平原上，经济条件允许下可开采的石油可能不超过32亿桶。