22:32World Business ReportFirst broadcast 2016/01/06 22:32 GMT: Oil Falls to Fresh 11-year LowsBBC World Service Duration: 27 minutes Wed 6th Jan 2016, 22:32 on BBC World Service West and Central AfricaAvailable for over a yearListen nowWe find out why the cost of crude oil has tumbled more than 5% in one day. Show more GenresFactualMoneyFormatsBulletinsBrandWorld Business Report Source: BBC Online