World oil prices rose in Asian trade on Monday on fears that mounting political tensions in Egypt would disrupt supplies flowing through the Suez Canal. New York's main contract, light sweet crude for March delivery, was up 37 cents to 89 dollars and 71 cents per barrel in morning trade. Brent North Sea crude for March rose 18 cents at 99 dollars and 60 cents. Investors are concerned that similar demonstrations — which have also touched Tunisia, Yemen and Jordan — could spread elsewhere in the oil-rich Middle East.