According to PFC’s statistics, ... Nonetheless, although current oil prices are far higher than that four years ago, PFC Energy’s CEO said that the lower combined market valuation was attributable to a number of factors, including lower North American natural gas prices, and less buoyant global stock markets.
根据PFC的统计，不过，尽管目前的油价远比4年前要高，对此，PFC能源公司CEO指出，导致总市值低的原因有很多，主要包括北美天然气价格的下降，以及全球股票市场的活跃度低。