The US Treasury announces that it's revoking an Iran-related licence. The moves unwinds the sanctions removal from June 21.An official cited by Reuters says that US negotiators continue to work in good fath but also that Iran's actions in the Strait of Hormuz were wholly unacceptable and will be met with consequences.Are these all the consequences or will there be more?WTI is now up more than 3% and extended gains by 20 cents on this announcement. This article was written by Adam Button at investinglive.com.