Oil up as Middle East tensions persist, demand concerns cap gains

Oil prices rose on Middle East tensions, limited by bearish demand sentiment. Yemen's Houthis attacked ships. A U.S.-British coalition launched airstrikes. Weaker demand, increasing non-Opec supply capped gains. China's crude oil imports softened. Market awaits reports from OPEC, IEA, and EIA. Brent futures, US crude April...