Thanks to the shale-energy revolution, American oil production has risen from five million barrels per day in 2008 to 9.3 million barrels in 2015, a supply boom that has so far persisted, despite the price collapse. Anticipation of post-sanctions Iranian oil production has also affected markets.
但是，石油供给新来源也起着至少同样重要的作用。拜页岩能源革命所赐，美国石油产量从2008年的每日五百万桶上升到2015年的930万桶，尽管价格暴跌，但这一产量增长仍得到了保持。解除制裁后的伊朗石油产量预期也影响了市场。