Post Carbon Fellow Richard Heinberg was interviewed on RT following the lifting of international sanctions on Iran.

From the article:

Everyone is expecting Iran to up its oil production as a result of the lifting the sanctions. I think it is not going to happen immediately, it is going to take place over a longer period of time – the period of many months, perhaps years. Nevertheless, the prospect of more oil from Iran is weighing on oil prices; it is only one of the many factors. And that is really devastating for the industry.