After saboteurs of unknown identity blew-up a main crude oil export pipeline in Yemen on Thursday, officials were forced to close it down.
This is only the latest attack in what has become a regular event along the Maarib pipeline. Before the attacks began in 2010 the pipeline used to carry about 110,000 barrels per day of Marib light crude, arriving at the Ras Isa terminal along the Red Sea for export around the world.