YEMEN

The Gulf Arab states are considering imposing economic sanctions against Yemen following the swift power grab of the Arab world’s poorest state by Houthi rebels.

Although not a major oil exporter, Yemen relies on revenues from hydrocarbons exports for around 60% of its revenues. Oil output has been in steady decline since 2002, and recent events have led to further output cuts, with little prospect of a recovery as the northernbased Houthis and Sunni tribes gear up for a battle...