Saudi Arabia lost its oil market share in 9 of 15 top markets between 2013 and 2015, including China, South Africa and the U.S. Saudi Arabian oil market share in China fell to 15% in 2015 from 19% in 2013 due to higher imports from Russia, its share in the U.S. dropped to 14% from 17%, while its share in South Africa declined to 22% from 53% due to higher imports from Nigeria and Angola.