Wednesday saw the greenback fall against a basket of currencies as possible delays to US President Trump's tax reform plans weighed on investors minds.
Crude oil stockpiles recovered last week as very large drops in product stockpiles were offset by a collapse in net imports.
A general strike organised by independence supporters in Catalonia has left many of the region’s roads blocked, bringing much of its industry to a standstill as several local government officials remain in jail.
US President Donald Trump has warned North Korea and its leader Kim Jong-un to "not underestimate" his administration, and also called on Russia and China to sever economic ties with the regime.
Both inbound and outbound trade from China cooled last month, but some economists are confident that any slowdown will be modest despite a loss of momentum in other emerging markets.