March 27 -- Yemen is the 39th biggest oil producer in the world, contributing only 0.2% to global output. So why are events there rocking the oil markets? Yvonne Man explains. -- Subscribe to Bloomberg on YouTube: http://www.youtube.com/Bloomberg Bloomberg Television offers extensive coverage and analysis of international business news and stories of global importance. It is available in more than 310 million households worldwide and reaches the most affluent and influential viewers in terms of household income, asset value and education levels. With production hubs in London, New York and Hong Kong, the network provides 24-hour continuous coverage of the people, companies and ideas that move the markets.